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12981464 = 2310914887
BaseRepresentation
bin110001100001…
…010011011000
3220102112012222
4301201103120
511310401324
61142123212
7215224556
oct61412330
926375188
1012981464
117367191
124420508
1328c6952
141a1cbd6
15121655e
hexc614d8

12981464 has 16 divisors (see below), whose sum is σ = 24565200. Its totient is φ = 6430752.

The previous prime is 12981439. The next prime is 12981481. The reversal of 12981464 is 46418921.

It is a happy number.

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, 6572 + ... + 8315.

It is an arithmetic number, because the mean of its divisors is an integer number (1535325).

Almost surely, 212981464 is an apocalyptic number.

It is an amenable number.

12981464 is a deficient number, since it is larger than the sum of its proper divisors (11583736).

12981464 is a wasteful number, since it uses less digits than its factorization.

12981464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15002 (or 14998 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 12981464 is about 3602.9798778234. The cubic root of 12981464 is about 235.0216608976.

The spelling of 12981464 in words is "twelve million, nine hundred eighty-one thousand, four hundred sixty-four".

Divisors: 1 2 4 8 109 218 436 872 14887 29774 59548 119096 1622683 3245366 6490732 12981464