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12904872902 = 214334502747
BaseRepresentation
bin11000000010011000…
…01011101111000110
31020022100210110121122
430001030023233012
5202412121413102
65532312113542
7634536416105
oct140114135706
936270713548
1012904872902
115522512019
1226019958b2
1312a877618c
148a5c8603c
15507e110a2
hex30130bbc6

12904872902 has 8 divisors (see below), whose sum is σ = 19370821896. Its totient is φ = 6447932272.

The previous prime is 12904872899. The next prime is 12904872917. The reversal of 12904872902 is 20927840921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2248508 + ... + 2254239.

It is an arithmetic number, because the mean of its divisors is an integer number (2421352737).

Almost surely, 212904872902 is an apocalyptic number.

12904872902 is a deficient number, since it is larger than the sum of its proper divisors (6465948994).

12904872902 is a wasteful number, since it uses less digits than its factorization.

12904872902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4504182.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 12904872902 in words is "twelve billion, nine hundred four million, eight hundred seventy-two thousand, nine hundred two".

Divisors: 1 2 1433 2866 4502747 9005494 6452436451 12904872902