BaltimoreTwilightMarauder
Superstar
This the dumbest thread ever
Got nothing else to do for the next 100,000 years...To count to 1 trillion, one number a second, it would take 31,688 years!
This the dumbest thread ever
287 = 7·41, sum of three consecutive primes (89 + 97 + 101), sum of five consecutive primes (47 + 53 + 59 + 61 + 67), sum of nine consecutive primes (17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47), Kynea number, pentagonal number, also shorthand for the Intel math coprocessor to the 80286
288 is a pentagonal pyramidal number, is 4 superfactorial since 288 = 1!·2!·3!·4!
288 is an untouchable number, a Harshad number in base 10 and base 12, an Achilles number, a 3-smooth number and a self number.
Both 288 and 289 are powerful numbers.
288 is sum of the sequence of integers 1..4 to the second tetration (i.e. {\displaystyle 288=\sum _{k=1}^{4}{(k[4]2)}}, where {\displaystyle a[n]b}is the hyperoperation) since 288 = 1 + 4 + 27 + 256 = 11 + 22 + 33 + 44.
288 is the number of labelled pointed rooted trees (vertebrates) with up to 4 nodes, the number of maximal directed Pseudoforests on up to 4 vertices, the number of Endofunctions for all sets with ≤ 4 points, and is two dozen sets of a dozen, thus being two gross and being 200 in base 12, often told as a pun in maths classes.
Isaac Luria teaches that there are 288 fallen sparks. This is derived from the line in Genesis 1:2, "and the Spirit of God moved upon (merachefet) the face of the waters."
"And the earth was without form (תהו tohu), and void; and darkness was upon the face of the deep. And the spirit of God moved upon (מרחפת merachefet) the face of the waters." Gen 1:2
The Hebrew word merachefet, or "moved upon" (מרחפת) is the eighteenth word in the Torah, and with a gematria value of 728 is the first word that's a multiple of 26, which is the gematria value of the Tetragrammaton (יהוה). The Ari explains that the word "merachefet" is actually a compound of two words: "met" and "rachaph" - the first and last letters - מ ת - spell met ("death"); the remaining letters - ר ח פ -spell rachaph ("move") which has a gematria value of 288. This is also the value of the word ibbur (ע י ב ו ר) which means "gestation". So, death and rebirth are all represented in the opening to Genesis, signifying that 288 fragments ("rachaph") had died ("met") - an allusion to the shattering of the vessels of tohu into 288 initial sparks.
- using standard gematria, the product of the 28 letters from Genesis 1:1 = 288³ x 10²⁷
- Earth's average surface temperature = 288˚ K
The number 288 also figures prominently in Pythagorean geometry. This can be seen by comparing the first two primitive Pythagorean triples:
The two 3:4:5 Pythagorean triangles featuring the isopsephia of Jesus also reveal the number 288:
- φ(888) = 288
- φ(1110) = 288
- φ(1184) = 2 x 288
- φ(1480) = 2 x 288
A 3:4:5 Pythagorean triangle featuring a side length of 288 is of particular interest, revealing an abundance of familiar biblical gematria numbers:
Notice how each side of this triangle reduces to 9:
- 288 = φ(888)
- 216 = φ(666)
- φ(288) = φ(360)
- perimeter = 432 x 2 = 288 x 3
- area = 108 x 288 = 144 x 216 = 72 x 432
- 360 - 288 = 288 - 216 = 72
- φ(432) = 144
- φ(216) = 72
- 3 + 6 + 0 = 9
- 2 + 8 + 8 = 18, and 1 + 8 = 9
- 2 + 1 + 6 = 9
That 288 is the totient function of 888 (the isopsephia value of Jesus) leads us to another Pythagorean triangle that features those two numbers:
- φ(888) = 288
- perimeter = 2016
- 2 + 0 + 1 + 6 = 9
- area = 108 x 1120 = 120960
- 1 + 2 + 0 + 9 + 6 + 0 = 18, and 1 + 8 = 9
- φ(888) + φ(288) + φ(840) = φ(1480) = 576
- 5 + 7 + 6 = 18, and 1 + 8 = 9
- 8 + 8 + 8 + 8 + 4 + 0 + 2 + 8 + 8 = 54, and 5 + 4 = 9