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12955697 = 27147807
BaseRepresentation
bin110001011011…
…000000110001
3220101012212122
4301123000301
511304040242
61141404025
7215056466
oct61330061
926335778
1012955697
117349897
124409615
1328b7cc1
141a1366d
15120dad2
hexc5b031

12955697 has 4 divisors (see below), whose sum is σ = 13003776. Its totient is φ = 12907620.

The previous prime is 12955687. The next prime is 12955703. The reversal of 12955697 is 79655921.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 79655921 = 731091177.

It is a cyclic number.

It is not a de Polignac number, because 12955697 - 24 = 12955681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12955637) 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, 23633 + ... + 24174.

It is an arithmetic number, because the mean of its divisors is an integer number (3250944).

Almost surely, 212955697 is an apocalyptic number.

It is an amenable number.

12955697 is a deficient number, since it is larger than the sum of its proper divisors (48079).

12955697 is an equidigital number, since it uses as much as digits as its factorization.

12955697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48078.

The product of its digits is 170100, while the sum is 44.

The square root of 12955697 is about 3599.4023114956. The cubic root of 12955697 is about 234.8660591797.

The spelling of 12955697 in words is "twelve million, nine hundred fifty-five thousand, six hundred ninety-seven".

Divisors: 1 271 47807 12955697