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12740904 = 23321116087
BaseRepresentation
bin110000100110…
…100100101000
3212222022020100
4300212210220
511230202104
61133025400
7213203331
oct60464450
925868210
1012740904
117212480
124325260
1328412c7
141999288
1511ba139
hexc26928

12740904 has 48 divisors (see below), whose sum is σ = 37645920. Its totient is φ = 3860640.

The previous prime is 12740899. The next prime is 12740911. The reversal of 12740904 is 40904721.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7252 + ... + 8835.

It is an arithmetic number, because the mean of its divisors is an integer number (784290).

Almost surely, 212740904 is an apocalyptic number.

It is an amenable number.

12740904 is an abundant number, since it is smaller than the sum of its proper divisors (24905016).

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

12740904 is a wasteful number, since it uses less digits than its factorization.

12740904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16110 (or 16103 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 12740904 is about 3569.4402922587. The cubic root of 12740904 is about 233.5608682966.

The spelling of 12740904 in words is "twelve million, seven hundred forty thousand, nine hundred four".