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12775904 = 251921013
BaseRepresentation
bin110000101111…
…000111100000
3220001002020122
4300233013200
511232312104
61133455412
7213410351
oct60570740
926032218
1012775904
1172367a9
124341568
13285420b
1419a7d28
1511c56be
hexc2f1e0

12775904 has 24 divisors (see below), whose sum is σ = 26477640. Its totient is φ = 6051456.

The previous prime is 12775871. The next prime is 12775913. The reversal of 12775904 is 40957721.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9899 + ... + 11114.

It is an arithmetic number, because the mean of its divisors is an integer number (1103235).

Almost surely, 212775904 is an apocalyptic number.

It is an amenable number.

12775904 is an abundant number, since it is smaller than the sum of its proper divisors (13701736).

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

12775904 is a wasteful number, since it uses less digits than its factorization.

12775904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21042 (or 21034 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 12775904 is about 3574.3396592937. The cubic root of 12775904 is about 233.7745411621.

The spelling of 12775904 in words is "twelve million, seven hundred seventy-five thousand, nine hundred four".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 21013 42026 84052 168104 336208 399247 672416 798494 1596988 3193976 6387952 12775904