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56975022719 = 321717710607
BaseRepresentation
bin110101000011111110…
…011101101001111111
312110001200120001000122
4311003332131221333
51413141101211334
642101324245155
74054615462646
oct650376355177
9173050501018
1056975022719
1122187a0793a
12b0609a07bb
1354acb3bbc4
142a86c2835d
151736dc832e
hexd43f9da7f

56975022719 has 4 divisors (see below), whose sum is σ = 56992736544. Its totient is φ = 56957308896.

The previous prime is 56975022707. The next prime is 56975022721. The reversal of 56975022719 is 91722057965.

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

It is a cyclic number.

It is not a de Polignac number, because 56975022719 - 224 = 56958245503 is a prime.

It is a super-2 number, since 2×569750227192 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56975022749) 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, 8852087 + ... + 8858520.

It is an arithmetic number, because the mean of its divisors is an integer number (14248184136).

Almost surely, 256975022719 is an apocalyptic number.

56975022719 is a deficient number, since it is larger than the sum of its proper divisors (17713825).

56975022719 is a wasteful number, since it uses less digits than its factorization.

56975022719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17713824.

The product of its (nonzero) digits is 2381400, while the sum is 53.

The spelling of 56975022719 in words is "fifty-six billion, nine hundred seventy-five million, twenty-two thousand, seven hundred nineteen".

Divisors: 1 3217 17710607 56975022719