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56245155131 = 117964723999
BaseRepresentation
bin110100011000011110…
…001111010100111011
312101011211011220220202
4310120132033110323
51410142224431011
641501052512415
74030543634054
oct643036172473
9171154156822
1056245155131
1121942a18590
12aa9847b70b
1353c4872ba9
142a17d1772b
1516e2ca623b
hexd1878f53b

56245155131 has 8 divisors (see below), whose sum is σ = 62135040000. Its totient is φ = 50484718440.

The previous prime is 56245155119. The next prime is 56245155139. The reversal of 56245155131 is 13155154265.

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 56245155131 - 222 = 56240960827 is a prime.

It is a super-2 number, since 2×562451551312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56245155139) 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, 32361131 + ... + 32362868.

It is an arithmetic number, because the mean of its divisors is an integer number (7766880000).

Almost surely, 256245155131 is an apocalyptic number.

56245155131 is a deficient number, since it is larger than the sum of its proper divisors (5889884869).

56245155131 is a wasteful number, since it uses less digits than its factorization.

56245155131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64724089.

The product of its digits is 90000, while the sum is 38.

The spelling of 56245155131 in words is "fifty-six billion, two hundred forty-five million, one hundred fifty-five thousand, one hundred thirty-one".

Divisors: 1 11 79 869 64723999 711963989 5113195921 56245155131