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12979211 = 717293761
BaseRepresentation
bin110001100000…
…110000001011
3220102102010112
4301200300023
511310313321
61142104535
7215215160
oct61406013
926372115
1012979211
117365523
12441b14b
1328c590b
141a1c067
151215a5b
hexc60c0b

12979211 has 16 divisors (see below), whose sum is σ = 16251840. Its totient is φ = 10106880.

The previous prime is 12979159. The next prime is 12979237. The reversal of 12979211 is 11297921.

12979211 = 3052 + 3062 + ... + 4062.

12979211 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12979211 - 222 = 8784907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12979511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1571 + ... + 5331.

It is an arithmetic number, because the mean of its divisors is an integer number (1015740).

Almost surely, 212979211 is an apocalyptic number.

12979211 is a deficient number, since it is larger than the sum of its proper divisors (3272629).

12979211 is a wasteful number, since it uses less digits than its factorization.

12979211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3814.

The product of its digits is 2268, while the sum is 32.

The square root of 12979211 is about 3602.6672063903. The cubic root of 12979211 is about 235.0080637040.

The spelling of 12979211 in words is "twelve million, nine hundred seventy-nine thousand, two hundred eleven".

Divisors: 1 7 17 29 119 203 493 3451 3761 26327 63937 109069 447559 763483 1854173 12979211