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12642852 = 2231053571
BaseRepresentation
bin110000001110…
…101000100100
3212210022201210
4300032220210
511214032402
61130551420
7212314425
oct60165044
925708653
1012642852
117155842
124298570
1328087a1
14197164c
15119b06c
hexc0ea24

12642852 has 12 divisors (see below), whose sum is σ = 29500016. Its totient is φ = 4214280.

The previous prime is 12642841. The next prime is 12642853. The reversal of 12642852 is 25824621.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (12642853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526774 + ... + 526797.

Almost surely, 212642852 is an apocalyptic number.

12642852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12642852 is an abundant number, since it is smaller than the sum of its proper divisors (16857164).

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

12642852 is a wasteful number, since it uses less digits than its factorization.

12642852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053578 (or 1053576 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 12642852 is about 3555.6788381405. The cubic root of 12642852 is about 232.9601754281.

The spelling of 12642852 in words is "twelve million, six hundred forty-two thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 1053571 2107142 3160713 4214284 6321426 12642852