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12968737 = 22757131
BaseRepresentation
bin110001011110…
…001100100001
3220101212202121
4301132030201
511304444422
61141544241
7215142505
oct61361441
926355677
1012968737
117358671
124415081
1328c0c12
141a18305
1512128c7
hexc5e321

12968737 has 4 divisors (see below), whose sum is σ = 13026096. Its totient is φ = 12911380.

The previous prime is 12968699. The next prime is 12968743. The reversal of 12968737 is 73786921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12968737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12968693 and 12968702.

It is not an unprimeable number, because it can be changed into a prime (12968777) 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, 28339 + ... + 28792.

It is an arithmetic number, because the mean of its divisors is an integer number (3256524).

Almost surely, 212968737 is an apocalyptic number.

It is an amenable number.

12968737 is a deficient number, since it is larger than the sum of its proper divisors (57359).

12968737 is an equidigital number, since it uses as much as digits as its factorization.

12968737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57358.

The product of its digits is 127008, while the sum is 43.

The square root of 12968737 is about 3601.2132677752. The cubic root of 12968737 is about 234.9448308701.

The spelling of 12968737 in words is "twelve million, nine hundred sixty-eight thousand, seven hundred thirty-seven".

Divisors: 1 227 57131 12968737