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12807952 = 24800497
BaseRepresentation
bin110000110110…
…111100010000
3220002201012121
4300312330100
511234323302
61134304024
7213602653
oct60667420
926081177
1012807952
117258893
124358014
132865991
1419b589a
1511cee37
hexc36f10

12807952 has 10 divisors (see below), whose sum is σ = 24815438. Its totient is φ = 6403968.

The previous prime is 12807943. The next prime is 12807959. The reversal of 12807952 is 25970821.

It can be written as a sum of positive squares in only one way, i.e., 12418576 + 389376 = 3524^2 + 624^2 .

It is not an unprimeable number, because it can be changed into a prime (12807959) 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 as a sum of consecutive naturals, namely, 400233 + ... + 400264.

Almost surely, 212807952 is an apocalyptic number.

It is an amenable number.

12807952 is a deficient number, since it is larger than the sum of its proper divisors (12007486).

12807952 is an equidigital number, since it uses as much as digits as its factorization.

12807952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800505 (or 800499 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 12807952 is about 3578.8199172353. The cubic root of 12807952 is about 233.9698502563.

The spelling of 12807952 in words is "twelve million, eight hundred seven thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 16 800497 1600994 3201988 6403976 12807952