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28160131533087 = 33113714914833543
BaseRepresentation
bin1100110011100100010101…
…01000110000100100011111
310200201002012222120121222210
412121302022220300210133
512142333422133024322
6135520330312411503
75634334211431551
oct631621250604437
9120632188517883
1028160131533087
118a77710132164
1231a97570a6b93
131293648479028
146d4d59a8d4d1
1533c79a0bb70c
hex199c8aa3091f

28160131533087 has 32 divisors (see below), whose sum is σ = 39302958182400. Its totient is φ = 17914172002560.

The previous prime is 28160131533059. The next prime is 28160131533089. The reversal of 28160131533087 is 78033513106182.

It is not a de Polignac number, because 28160131533087 - 216 = 28160131467551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28160131533089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5518363 + ... + 9315180.

It is an arithmetic number, because the mean of its divisors is an integer number (1228217443200).

Almost surely, 228160131533087 is an apocalyptic number.

28160131533087 is a deficient number, since it is larger than the sum of its proper divisors (11142826649313).

28160131533087 is a wasteful number, since it uses less digits than its factorization.

28160131533087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14833863.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 28160131533087 in words is "twenty-eight trillion, one hundred sixty billion, one hundred thirty-one million, five hundred thirty-three thousand, eighty-seven".

Divisors: 1 3 31 93 137 149 411 447 4247 4619 12741 13857 20413 61239 632803 1898409 14833543 44500629 459839833 1379519499 2032195391 2210197907 6096586173 6630593721 62998057121 68516135117 188994171363 205548405351 302797113259 908391339777 9386710511029 28160131533087