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12637948 = 2223137369
BaseRepresentation
bin110000001101…
…011011111100
3212210002000011
4300031123330
511213403243
61130513004
7212264221
oct60153374
925702004
1012637948
117152094
124295764
13280649b
14196d948
15119989d
hexc0d6fc

12637948 has 12 divisors (see below), whose sum is σ = 23078160. Its totient is φ = 6044192.

The previous prime is 12637921. The next prime is 12637949. The reversal of 12637948 is 84973621.

It is a self number, because there is not a number n which added to its sum of digits gives 12637948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12637949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68593 + ... + 68776.

It is an arithmetic number, because the mean of its divisors is an integer number (1923180).

Almost surely, 212637948 is an apocalyptic number.

It is an amenable number.

12637948 is a deficient number, since it is larger than the sum of its proper divisors (10440212).

12637948 is a wasteful number, since it uses less digits than its factorization.

12637948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137396 (or 137394 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 12637948 is about 3554.9891701663. The cubic root of 12637948 is about 232.9300507789.

The spelling of 12637948 in words is "twelve million, six hundred thirty-seven thousand, nine hundred forty-eight".

Divisors: 1 2 4 23 46 92 137369 274738 549476 3159487 6318974 12637948