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12870697 = 71838671
BaseRepresentation
bin110001000110…
…010000101001
3220012220021111
4301012100221
511243330242
61135510321
7214253620
oct61062051
926186244
1012870697
1172a0a44
1243883a1
1328883c8
1419d06b7
1511e3817
hexc46429

12870697 has 4 divisors (see below), whose sum is σ = 14709376. Its totient is φ = 11032020.

The previous prime is 12870691. The next prime is 12870701. The reversal of 12870697 is 79607821.

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 12870697 - 27 = 12870569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12870691) 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, 919329 + ... + 919342.

It is an arithmetic number, because the mean of its divisors is an integer number (3677344).

Almost surely, 212870697 is an apocalyptic number.

It is an amenable number.

12870697 is a deficient number, since it is larger than the sum of its proper divisors (1838679).

12870697 is an equidigital number, since it uses as much as digits as its factorization.

12870697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838678.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 12870697 is about 3587.5753650620. The cubic root of 12870697 is about 234.3512937682.

The spelling of 12870697 in words is "twelve million, eight hundred seventy thousand, six hundred ninety-seven".

Divisors: 1 7 1838671 12870697