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12956592403697 = 42967730154261
BaseRepresentation
bin1011110010001011000100…
…0101100111010011110001
31200212122020012110011102112
42330202301011213103301
53144240100123404242
643320102033055105
72505040303204445
oct274426105472361
950778205404375
1012956592403697
1141459506a8168
1215530a86b7495
1372ca559505a7
1432b161070825
1517706d946c82
hexbc8b11674f1

12956592403697 has 4 divisors (see below), whose sum is σ = 12956622987636. Its totient is φ = 12956561819760.

The previous prime is 12956592403691. The next prime is 12956592403709. The reversal of 12956592403697 is 79630429565921.

12956592403697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6267417117361 + 6689175286336 = 2503481^2 + 2586344^2 .

It is a cyclic number.

It is not a de Polignac number, because 12956592403697 - 26 = 12956592403633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12956592403691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14647454 + ... + 15506807.

It is an arithmetic number, because the mean of its divisors is an integer number (3239155746909).

Almost surely, 212956592403697 is an apocalyptic number.

It is an amenable number.

12956592403697 is a deficient number, since it is larger than the sum of its proper divisors (30583939).

12956592403697 is an equidigital number, since it uses as much as digits as its factorization.

12956592403697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30583938.

The product of its (nonzero) digits is 220449600, while the sum is 68.

The spelling of 12956592403697 in words is "twelve trillion, nine hundred fifty-six billion, five hundred ninety-two million, four hundred three thousand, six hundred ninety-seven".

Divisors: 1 429677 30154261 12956592403697