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12426956867 = 131891350543
BaseRepresentation
bin10111001001011010…
…00101000001000011
31012002001111211001202
423210231011001003
5200422300104432
65413040451415
7616644250643
oct134455050103
935061454052
1012426956867
1152a7769696
1224a9919b6b
131230753c20
1485c5dc523
154caeab462
hex2e4b45043

12426956867 has 8 divisors (see below), whose sum is σ = 13383849024. Its totient is φ = 11470203648.

The previous prime is 12426956827. The next prime is 12426956873. The reversal of 12426956867 is 76865962421.

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

It is a cyclic number.

It is not a de Polignac number, because 12426956867 - 28 = 12426956611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12426956827) 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, 220598 + ... + 271140.

It is an arithmetic number, because the mean of its divisors is an integer number (1672981128).

Almost surely, 212426956867 is an apocalyptic number.

12426956867 is a deficient number, since it is larger than the sum of its proper divisors (956892157).

12426956867 is a wasteful number, since it uses less digits than its factorization.

12426956867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69469.

The product of its digits is 8709120, while the sum is 56.

The spelling of 12426956867 in words is "twelve billion, four hundred twenty-six million, nine hundred fifty-six thousand, eight hundred sixty-seven".

Divisors: 1 13 18913 50543 245869 657059 955919759 12426956867