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12804634038 = 2372131332467
BaseRepresentation
bin10111110110011011…
…10011010110110110
31020001101011210202010
423323031303112312
5202210441242123
65514331425050
7632211410400
oct137315632666
936041153663
1012804634038
115480978089
1225942b5186
131290a7aa41
14896831b70
154ee210993
hex2fb3735b6

12804634038 has 48 divisors (see below), whose sum is σ = 30017870784. Its totient is φ = 3630528720.

The previous prime is 12804634001. The next prime is 12804634049. The reversal of 12804634038 is 83043640821.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12804633987 and 12804634005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127720 + ... + 204747.

It is an arithmetic number, because the mean of its divisors is an integer number (625372308).

Almost surely, 212804634038 is an apocalyptic number.

12804634038 is an abundant number, since it is smaller than the sum of its proper divisors (17213236746).

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

12804634038 is a wasteful number, since it uses less digits than its factorization.

12804634038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332617 (or 332610 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 12804634038 in words is "twelve billion, eight hundred four million, six hundred thirty-four thousand, thirty-eight".

Divisors: 1 2 3 6 7 14 21 42 49 98 131 147 262 294 393 786 917 1834 2751 5502 6419 12838 19257 38514 332467 664934 997401 1994802 2327269 4654538 6981807 13963614 16290883 32581766 43553177 48872649 87106354 97745298 130659531 261319062 304872239 609744478 914616717 1829233434 2134105673 4268211346 6402317019 12804634038