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12632641 = 721032503
BaseRepresentation
bin110000001100…
…001001000001
3212202210201121
4300030021001
511213221031
61130432241
7212242600
oct60141101
925683647
1012632641
1171490aa
124292681
132803c48
14196ba37
151198011
hexc0c241

12632641 has 12 divisors (see below), whose sum is σ = 14843712. Its totient is φ = 10718568.

The previous prime is 12632639. The next prime is 12632657. The reversal of 12632641 is 14623621.

It is not a de Polignac number, because 12632641 - 21 = 12632639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12632621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3796 + ... + 6298.

It is an arithmetic number, because the mean of its divisors is an integer number (1236976).

Almost surely, 212632641 is an apocalyptic number.

It is an amenable number.

12632641 is a deficient number, since it is larger than the sum of its proper divisors (2211071).

12632641 is a wasteful number, since it uses less digits than its factorization.

12632641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620 (or 2613 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 12632641 is about 3554.2426760141. The cubic root of 12632641 is about 232.8974417707.

The spelling of 12632641 in words is "twelve million, six hundred thirty-two thousand, six hundred forty-one".

Divisors: 1 7 49 103 721 2503 5047 17521 122647 257809 1804663 12632641