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12968986 = 212751059
BaseRepresentation
bin110001011110…
…010000011010
3220101220002211
4301132100122
511310001421
61141545334
7215143312
oct61362032
926356084
1012968986
117358878
12441524a
1328c1074
141a18442
1512129e1
hexc5e41a

12968986 has 8 divisors (see below), whose sum is σ = 19607040. Its totient is φ = 6433308.

The previous prime is 12968983. The next prime is 12969007. The reversal of 12968986 is 68986921.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12968983) 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 3 ways as a sum of consecutive naturals, for example, 25276 + ... + 25783.

It is an arithmetic number, because the mean of its divisors is an integer number (2450880).

Almost surely, 212968986 is an apocalyptic number.

12968986 is a deficient number, since it is larger than the sum of its proper divisors (6638054).

12968986 is a wasteful number, since it uses less digits than its factorization.

12968986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51188.

The product of its digits is 373248, while the sum is 49.

The square root of 12968986 is about 3601.2478392913. The cubic root of 12968986 is about 234.9463345089.

The spelling of 12968986 in words is "twelve million, nine hundred sixty-eight thousand, nine hundred eighty-six".

Divisors: 1 2 127 254 51059 102118 6484493 12968986