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56580318357 = 3171109418007
BaseRepresentation
bin110100101100011100…
…110010010010010101
312102001011211222102120
4310230130302102111
51411334030141412
641554224330153
74042053525243
oct645434622225
9172034758376
1056580318357
1121aa5129692
12ab70773959
135449132b24
142a4a641793
15171240db8c
hexd2c732495

56580318357 has 8 divisors (see below), whose sum is σ = 79878096576. Its totient is φ = 35501376192.

The previous prime is 56580318331. The next prime is 56580318397. The reversal of 56580318357 is 75381308565.

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

It is not a de Polignac number, because 56580318357 - 215 = 56580285589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 1109418007 = 56580318357 / (5 + 6 + 5 + 8 + 0 + 3 + 1 + 8 + 3 + 5 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56580318317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554708953 + ... + 554709054.

It is an arithmetic number, because the mean of its divisors is an integer number (9984762072).

Almost surely, 256580318357 is an apocalyptic number.

It is an amenable number.

56580318357 is a deficient number, since it is larger than the sum of its proper divisors (23297778219).

56580318357 is a wasteful number, since it uses less digits than its factorization.

56580318357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109418027.

The product of its (nonzero) digits is 3024000, while the sum is 51.

The spelling of 56580318357 in words is "fifty-six billion, five hundred eighty million, three hundred eighteen thousand, three hundred fifty-seven".

Divisors: 1 3 17 51 1109418007 3328254021 18860106119 56580318357