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15131104104 = 2331274964273
BaseRepresentation
bin11100001011110001…
…00101001101101000
31110001111211201201010
432011320211031220
5221442030312404
610541240023520
71043651156064
oct160570451550
943044751633
1015131104104
116465128516
122b23461ba0
131571a6024c
14a377d0aa4
155d85b0189
hex385e25368

15131104104 has 32 divisors (see below), whose sum is σ = 38125624320. Its totient is φ = 5003986176.

The previous prime is 15131104049. The next prime is 15131104147. The reversal of 15131104104 is 40140113151.

It is a super-2 number, since 2×151311041042 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2479089 + ... + 2485184.

It is an arithmetic number, because the mean of its divisors is an integer number (1191425760).

Almost surely, 215131104104 is an apocalyptic number.

It is an amenable number.

15131104104 is an abundant number, since it is smaller than the sum of its proper divisors (22994520216).

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

15131104104 is a wasteful number, since it uses less digits than its factorization.

15131104104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4964409 (or 4964405 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 15131104104 its reverse (40140113151), we get a palindrome (55271217255).

The spelling of 15131104104 in words is "fifteen billion, one hundred thirty-one million, one hundred four thousand, one hundred four".

Divisors: 1 2 3 4 6 8 12 24 127 254 381 508 762 1016 1524 3048 4964273 9928546 14892819 19857092 29785638 39714184 59571276 119142552 630462671 1260925342 1891388013 2521850684 3782776026 5043701368 7565552052 15131104104