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12632788 = 227264453
BaseRepresentation
bin110000001100…
…001011010100
3212202210221001
4300030023110
511213222123
61130433044
7212243200
oct60141324
925683831
1012632788
117149223
124292784
13280402c
14196bb00
1511980ad
hexc0c2d4

12632788 has 18 divisors (see below), whose sum is σ = 25717146. Its totient is φ = 5413968.

The previous prime is 12632771. The next prime is 12632791. The reversal of 12632788 is 88723621.

It can be written as a sum of positive squares in only one way, i.e., 6492304 + 6140484 = 2548^2 + 2478^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32031 + ... + 32422.

Almost surely, 212632788 is an apocalyptic number.

It is an amenable number.

12632788 is an abundant number, since it is smaller than the sum of its proper divisors (13084358).

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

12632788 is a wasteful number, since it uses less digits than its factorization.

12632788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64471 (or 64462 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 12632788 is about 3554.2633554648. The cubic root of 12632788 is about 232.8983451392.

The spelling of 12632788 in words is "twelve million, six hundred thirty-two thousand, seven hundred eighty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 64453 128906 257812 451171 902342 1804684 3158197 6316394 12632788