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15157298816 = 271123468049
BaseRepresentation
bin11100001110111001…
…00000011010000000
31110010100010120002122
432013130200122000
5222020232030231
610544013303412
71044416625362
oct160734403200
943110116078
1015157298816
116478999a40
122b30194b68
13157730218a
14a3b08cd32
155daa3677b
hex387720680

15157298816 has 64 divisors (see below), whose sum is σ = 34373592000. Its totient is φ = 6590115840.

The previous prime is 15157298789. The next prime is 15157298831. The reversal of 15157298816 is 61889275151.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201641 + ... + 266408.

It is an arithmetic number, because the mean of its divisors is an integer number (537087375).

Almost surely, 215157298816 is an apocalyptic number.

15157298816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15157298816 is an abundant number, since it is smaller than the sum of its proper divisors (19216293184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15157298816 is a wasteful number, since it uses less digits than its factorization.

15157298816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468097 (or 468085 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 53.

The spelling of 15157298816 in words is "fifteen billion, one hundred fifty-seven million, two hundred ninety-eight thousand, eight hundred sixteen".

Divisors: 1 2 4 8 11 16 22 23 32 44 46 64 88 92 128 176 184 253 352 368 506 704 736 1012 1408 1472 2024 2944 4048 8096 16192 32384 468049 936098 1872196 3744392 5148539 7488784 10297078 10765127 14977568 20594156 21530254 29955136 41188312 43060508 59910272 82376624 86121016 118416397 164753248 172242032 236832794 329506496 344484064 473665588 659012992 688968128 947331176 1377936256 1894662352 3789324704 7578649408 15157298816