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30904497475 = 521669740671
BaseRepresentation
bin11100110010000011…
…010011010101000011
32221202210021010122121
4130302003103111003
51001243022404400
622110342345111
72142561615505
oct346203232503
987683233577
1030904497475
1112119868405
125ba5a2b197
132bb68a48c7
1416d2615d75
15c0d24321a
hex7320d3543

30904497475 has 12 divisors (see below), whose sum is σ = 38344589440. Its totient is φ = 24708751200.

The previous prime is 30904497467. The next prime is 30904497511. The reversal of 30904497475 is 57479440903.

It is not a de Polignac number, because 30904497475 - 23 = 30904497467 is a prime.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 328611 + ... + 412060.

Almost surely, 230904497475 is an apocalyptic number.

30904497475 is a deficient number, since it is larger than the sum of its proper divisors (7440091965).

30904497475 is a wasteful number, since it uses less digits than its factorization.

30904497475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742350 (or 742345 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 30904497475 in words is "thirty billion, nine hundred four million, four hundred ninety-seven thousand, four hundred seventy-five".

Divisors: 1 5 25 1669 8345 41725 740671 3703355 18516775 1236179899 6180899495 30904497475