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56180677131 = 3221412915599
BaseRepresentation
bin110100010100101000…
…010001101000001011
312101000022212002201200
4310110220101220023
51410024223132011
641450430515243
74026131606415
oct642450215013
9171008762650
1056180677131
112190a589287
12aa7a965b23
1353b43b8927
142a0d5319b5
1516dc2bb856
hexd14a11a0b

56180677131 has 12 divisors (see below), whose sum is σ = 81187797600. Its totient is φ = 37436278320.

The previous prime is 56180677109. The next prime is 56180677139. The reversal of 56180677131 is 13177608165.

56180677131 is a `hidden beast` number, since 561 + 8 + 0 + 6 + 77 + 13 + 1 = 666.

It is not a de Polignac number, because 56180677131 - 26 = 56180677067 is a prime.

It is a super-2 number, since 2×561806771312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56180677139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1438531 + ... + 1477068.

It is an arithmetic number, because the mean of its divisors is an integer number (6765649800).

Almost surely, 256180677131 is an apocalyptic number.

56180677131 is a deficient number, since it is larger than the sum of its proper divisors (25007120469).

56180677131 is a wasteful number, since it uses less digits than its factorization.

56180677131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2917746 (or 2917743 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 56180677131 in words is "fifty-six billion, one hundred eighty million, six hundred seventy-seven thousand, one hundred thirty-one".

Divisors: 1 3 9 2141 6423 19269 2915599 8746797 26240391 6242297459 18726892377 56180677131