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11872657960 = 2352312905063
BaseRepresentation
bin10110000111010101…
…00110001000101000
31010122102111111220121
423003222212020220
5143303400023320
65242040133024
7600133633102
oct130352461050
933572444817
1011872657960
115042895719
122374167174
131172969ac7
14808b50572
154974b98aa
hex2c3aa6228

11872657960 has 32 divisors (see below), whose sum is σ = 27874938240. Its totient is φ = 4542581824.

The previous prime is 11872657919. The next prime is 11872657963. The reversal of 11872657960 is 6975627811.

It is a junction number, because it is equal to n+sod(n) for n = 11872657898 and 11872657907.

It is not an unprimeable number, because it can be changed into a prime (11872657963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6451612 + ... + 6453451.

It is an arithmetic number, because the mean of its divisors is an integer number (871091820).

Almost surely, 211872657960 is an apocalyptic number.

11872657960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11872657960 is an abundant number, since it is smaller than the sum of its proper divisors (16002280280).

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

11872657960 is a wasteful number, since it uses less digits than its factorization.

11872657960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12905097 (or 12905093 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 11872657960 in words is "eleven billion, eight hundred seventy-two million, six hundred fifty-seven thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 920 12905063 25810126 51620252 64525315 103240504 129050630 258101260 296816449 516202520 593632898 1187265796 1484082245 2374531592 2968164490 5936328980 11872657960