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56253831372 = 2233520868809
BaseRepresentation
bin110100011000111111…
…010101100011001100
312101012102111201111000
4310120333111203030
51410201440100442
641502002500300
74031010451164
oct643077254314
9171172451430
1056253831372
1121947904132
12aa9b364690
1353c65c006b
142a191355a4
1516e391bd4c
hexd18fd58cc

56253831372 has 24 divisors (see below), whose sum is σ = 145843266800. Its totient is φ = 18751277088.

The previous prime is 56253831343. The next prime is 56253831379. The reversal of 56253831372 is 27313835265.

56253831372 is a `hidden beast` number, since 5 + 625 + 3 + 8 + 3 + 13 + 7 + 2 = 666.

It is a super-2 number, since 2×562538313722 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56253831379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260434297 + ... + 260434512.

Almost surely, 256253831372 is an apocalyptic number.

It is an amenable number.

56253831372 is an abundant number, since it is smaller than the sum of its proper divisors (89589435428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56253831372 is a wasteful number, since it uses less digits than its factorization.

56253831372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520868822 (or 520868814 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The spelling of 56253831372 in words is "fifty-six billion, two hundred fifty-three million, eight hundred thirty-one thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 520868809 1041737618 1562606427 2083475236 3125212854 4687819281 6250425708 9375638562 14063457843 18751277124 28126915686 56253831372