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12872992 = 251136571
BaseRepresentation
bin110001000110…
…110100100000
3220020000102111
4301012310200
511243413432
61135525104
7214263406
oct61066440
926200374
1012872992
1172a2740
124389794
132889472
1419d1476
1511e4347
hexc46d20

12872992 has 24 divisors (see below), whose sum is σ = 27648432. Its totient is φ = 5851200.

The previous prime is 12872987. The next prime is 12872999. The reversal of 12872992 is 29927821.

It is not an unprimeable number, because it can be changed into a prime (12872999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17934 + ... + 18637.

It is an arithmetic number, because the mean of its divisors is an integer number (1152018).

Almost surely, 212872992 is an apocalyptic number.

It is an amenable number.

12872992 is an abundant number, since it is smaller than the sum of its proper divisors (14775440).

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

12872992 is a wasteful number, since it uses less digits than its factorization.

12872992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36592 (or 36584 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The square root of 12872992 is about 3587.8952047126. The cubic root of 12872992 is about 234.3652221580.

It can be divided in two parts, 128729 and 92, that added together give a palindrome (128821).

The spelling of 12872992 in words is "twelve million, eight hundred seventy-two thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 36571 73142 146284 292568 402281 585136 804562 1170272 1609124 3218248 6436496 12872992