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12934690 = 251498681
BaseRepresentation
bin110001010101…
…111000100010
3220100011001121
4301111320202
511302402230
61141122454
7214641316
oct61257042
926304047
1012934690
11733502a
1243b942a
1328ab582
141a09b46
15120777a
hexc55e22

12934690 has 16 divisors (see below), whose sum is σ = 23441400. Its totient is φ = 5138560.

The previous prime is 12934681. The next prime is 12934697. The reversal of 12934690 is 9643921.

It can be written as a sum of positive squares in 4 ways, for example, as 9903609 + 3031081 = 3147^2 + 1741^2 .

It is a super-2 number, since 2×129346902 = 334612410792200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12934697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2851 + ... + 5830.

Almost surely, 212934690 is an apocalyptic number.

12934690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12934690 is a deficient number, since it is larger than the sum of its proper divisors (10506710).

12934690 is a wasteful number, since it uses less digits than its factorization.

12934690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8837.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 12934690 is about 3596.4830042696. The cubic root of 12934690 is about 234.7390494078.

The spelling of 12934690 in words is "twelve million, nine hundred thirty-four thousand, six hundred ninety".

Divisors: 1 2 5 10 149 298 745 1490 8681 17362 43405 86810 1293469 2586938 6467345 12934690