Search a number
-
+
12664372 = 2272711669
BaseRepresentation
bin110000010011…
…111000110100
3212211102020211
4300103320310
511220224442
61131235204
7212434240
oct60237064
925742224
1012664372
11716aa26
1242a8b04
132815516
141979420
1511a2617
hexc13e34

12664372 has 24 divisors (see below), whose sum is σ = 25437440. Its totient is φ = 5404320.

The previous prime is 12664369. The next prime is 12664373. The reversal of 12664372 is 27346621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12664373) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6754 + ... + 8422.

Almost surely, 212664372 is an apocalyptic number.

It is an amenable number.

12664372 is an abundant number, since it is smaller than the sum of its proper divisors (12773068).

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

12664372 is a wasteful number, since it uses less digits than its factorization.

12664372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951 (or 1949 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 12664372 is about 3558.7036965727. The cubic root of 12664372 is about 233.0922780371.

The spelling of 12664372 in words is "twelve million, six hundred sixty-four thousand, three hundred seventy-two".

Divisors: 1 2 4 7 14 28 271 542 1084 1669 1897 3338 3794 6676 7588 11683 23366 46732 452299 904598 1809196 3166093 6332186 12664372