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12911706 = 232717317
BaseRepresentation
bin110001010000…
…010001011010
3220021222112100
4301100101122
511301133311
61140424230
7214514313
oct61202132
926258470
1012911706
117319835
1243a8076
1328a0c82
141a0160a
151200a56
hexc5045a

12911706 has 12 divisors (see below), whose sum is σ = 27975402. Its totient is φ = 4303896.

The previous prime is 12911683. The next prime is 12911711. The reversal of 12911706 is 60711921.

It can be written as a sum of positive squares in only one way, i.e., 11840481 + 1071225 = 3441^2 + 1035^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12911706.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 358641 + ... + 358676.

Almost surely, 212911706 is an apocalyptic number.

12911706 is an abundant number, since it is smaller than the sum of its proper divisors (15063696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12911706 is a wasteful number, since it uses less digits than its factorization.

12911706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717325 (or 717322 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 12911706 is about 3593.2862396419. The cubic root of 12911706 is about 234.5999289207.

The spelling of 12911706 in words is "twelve million, nine hundred eleven thousand, seven hundred six".

Divisors: 1 2 3 6 9 18 717317 1434634 2151951 4303902 6455853 12911706