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12976693 = 31418603
BaseRepresentation
bin110001100000…
…001000110101
3220102021200021
4301200020311
511310223233
61142045141
7215204632
oct61401065
926367607
1012976693
117363644
1244197b1
1328c4722
141a1b189
151214e2d
hexc60235

12976693 has 4 divisors (see below), whose sum is σ = 13395328. Its totient is φ = 12558060.

The previous prime is 12976687. The next prime is 12976703. The reversal of 12976693 is 39667921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12976693 - 29 = 12976181 is a prime.

It is a super-2 number, since 2×129766932 = 336789122432498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12976643) 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, 209271 + ... + 209332.

It is an arithmetic number, because the mean of its divisors is an integer number (3348832).

Almost surely, 212976693 is an apocalyptic number.

It is an amenable number.

12976693 is a deficient number, since it is larger than the sum of its proper divisors (418635).

12976693 is an equidigital number, since it uses as much as digits as its factorization.

12976693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418634.

The product of its digits is 122472, while the sum is 43.

The square root of 12976693 is about 3602.3177261313. The cubic root of 12976693 is about 234.9928653334.

The spelling of 12976693 in words is "twelve million, nine hundred seventy-six thousand, six hundred ninety-three".

Divisors: 1 31 418603 12976693