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56238473961 = 3316649125107
BaseRepresentation
bin110100011000000100…
…110000001011101001
312101011100121111002000
4310120010300023221
51410134022131321
641500253401213
74030433066325
oct643004601351
9171140544060
1056238473961
112193a17495a
12aa96199209
1353c3373b37
142a17098985
1516e23d6826
hexd181302e9

56238473961 has 16 divisors (see below), whose sum is σ = 83321928000. Its totient is φ = 37489764384.

The previous prime is 56238473849. The next prime is 56238473969. The reversal of 56238473961 is 16937483265.

56238473961 is a `hidden beast` number, since 5 + 623 + 8 + 4 + 7 + 3 + 9 + 6 + 1 = 666.

It is not a de Polignac number, because 56238473961 - 226 = 56171365097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56238473898 and 56238473907.

It is not an unprimeable number, because it can be changed into a prime (56238473969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386970 + ... + 512076.

It is an arithmetic number, because the mean of its divisors is an integer number (5207620500).

Almost surely, 256238473961 is an apocalyptic number.

It is an amenable number.

56238473961 is a deficient number, since it is larger than the sum of its proper divisors (27083454039).

56238473961 is a wasteful number, since it uses less digits than its factorization.

56238473961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141765 (or 141759 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 56238473961 in words is "fifty-six billion, two hundred thirty-eight million, four hundred seventy-three thousand, nine hundred sixty-one".

Divisors: 1 3 9 27 16649 49947 125107 149841 375321 449523 1125963 3377889 2082906443 6248719329 18746157987 56238473961