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12931106 = 2231092579
BaseRepresentation
bin110001010101…
…000000100010
3220022222010212
4301111000202
511302243411
61141054122
7214625006
oct61250042
926288125
1012931106
117332371
1243b7342
1328a9a56
141a08706
15120668b
hexc55022

12931106 has 16 divisors (see below), whose sum is σ = 20433600. Its totient is φ = 6125328.

The previous prime is 12931103. The next prime is 12931109. The reversal of 12931106 is 60113921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12931103) and next prime (12931109).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (12931103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3725 + ... + 6303.

It is an arithmetic number, because the mean of its divisors is an integer number (1277100).

Almost surely, 212931106 is an apocalyptic number.

12931106 is a deficient number, since it is larger than the sum of its proper divisors (7502494).

12931106 is a wasteful number, since it uses less digits than its factorization.

12931106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 12931106 is about 3595.9847051955. The cubic root of 12931106 is about 234.7173665671.

The spelling of 12931106 in words is "twelve million, nine hundred thirty-one thousand, one hundred six".

Divisors: 1 2 23 46 109 218 2507 2579 5014 5158 59317 118634 281111 562222 6465553 12931106