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30639860112 = 2431109575591
BaseRepresentation
bin11100100010010001…
…110010100110010000
32221002100022011102210
4130202101302212100
51000222301010422
622024210312120
72133166341141
oct344221624620
987070264383
1030639860112
1111aa3447444
125b31288640
132b73b08954
1416a9409ac8
15be4dbc10c
hex722472990

30639860112 has 40 divisors (see below), whose sum is σ = 79224482880. Its totient is φ = 10204059520.

The previous prime is 30639860063. The next prime is 30639860171. The reversal of 30639860112 is 21106893603.

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, 234564 + ... + 341027.

It is an arithmetic number, because the mean of its divisors is an integer number (1980612072).

Almost surely, 230639860112 is an apocalyptic number.

It is an amenable number.

30639860112 is an abundant number, since it is smaller than the sum of its proper divisors (48584622768).

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

30639860112 is a wasteful number, since it uses less digits than its factorization.

30639860112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576711 (or 576705 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 30639860112 in words is "thirty billion, six hundred thirty-nine million, eight hundred sixty thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 48 1109 2218 3327 4436 6654 8872 13308 17744 26616 53232 575591 1151182 1726773 2302364 3453546 4604728 6907092 9209456 13814184 27628368 638330419 1276660838 1914991257 2553321676 3829982514 5106643352 7659965028 10213286704 15319930056 30639860112