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12904057519 = 177116276571
BaseRepresentation
bin11000000010010010…
…00100101010101111
31020022022021001010021
430001021010222233
5202411414320034
65532242423011
7634526451643
oct140111045257
936268231107
1012904057519
115522005451
122601661a67
1312a854bcc2
148a5b12c23
15507cee6b4
hex301244aaf

12904057519 has 16 divisors (see below), whose sum is σ = 13866183936. Its totient is φ = 11964758400.

The previous prime is 12904057483. The next prime is 12904057549. The reversal of 12904057519 is 91575040921.

It is a cyclic number.

It is not a de Polignac number, because 12904057519 - 217 = 12903926447 is a prime.

It is a super-2 number, since 2×129040575192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12904057549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1960504 + ... + 1967074.

It is an arithmetic number, because the mean of its divisors is an integer number (866636496).

Almost surely, 212904057519 is an apocalyptic number.

12904057519 is a deficient number, since it is larger than the sum of its proper divisors (962126417).

12904057519 is a wasteful number, since it uses less digits than its factorization.

12904057519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8286.

The product of its (nonzero) digits is 113400, while the sum is 43.

The spelling of 12904057519 in words is "twelve billion, nine hundred four million, fifty-seven thousand, five hundred nineteen".

Divisors: 1 17 71 1207 1627 6571 27659 111707 115517 466541 1963789 7931197 10691017 181747289 759062207 12904057519