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56042507831 = 1259233919031
BaseRepresentation
bin110100001100011001…
…001100111000110111
312100122200212101002012
4310030121030320313
51404233340222311
641425013234435
74022533312442
oct641431147067
9170580771065
1056042507831
1121849597682
12aa40632a1b
13539189c94b
1429d9046659
1516d00c778b
hexd0c64ce37

56042507831 has 8 divisors (see below), whose sum is σ = 56113948800. Its totient is φ = 55971112120.

The previous prime is 56042507809. The next prime is 56042507879. The reversal of 56042507831 is 13870524065.

56042507831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 56042507831 - 230 = 54968766007 is a prime.

It is a super-2 number, since 2×560425078312 (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 (56042500831) 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, 2935286 + ... + 2954316.

It is an arithmetic number, because the mean of its divisors is an integer number (7014243600).

Almost surely, 256042507831 is an apocalyptic number.

56042507831 is a deficient number, since it is larger than the sum of its proper divisors (71440969).

56042507831 is a wasteful number, since it uses less digits than its factorization.

56042507831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22629.

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 56042507831 in words is "fifty-six billion, forty-two million, five hundred seven thousand, eight hundred thirty-one".

Divisors: 1 1259 2339 19031 2944801 23960029 44513509 56042507831