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56131560241 = 79229992
BaseRepresentation
bin110100010001101100…
…111010001100110001
312100212220102201000121
4310101230322030301
51404424134411431
641441514050241
74024664250451
oct642154721461
9170786381017
1056131560241
1121894891009
12aa66419981
1353a717c493
142a06bc7d61
1516d7d18611
hexd11b3a331

56131560241 has 9 divisors (see below), whose sum is σ = 56870043321. Its totient is φ = 55402554324.

The previous prime is 56131560229. The next prime is 56131560281. The reversal of 56131560241 is 14206513165.

The square root of 56131560241 is 236921.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 56131560241 - 219 = 56131035953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56131560197 and 56131560206.

It is not an unprimeable number, because it can be changed into a prime (56131560281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18715260 + ... + 18718258.

Almost surely, 256131560241 is an apocalyptic number.

56131560241 is the 236921-st square number.

56131560241 is the 118461-st centered octagonal number.

It is an amenable number.

56131560241 is a deficient number, since it is larger than the sum of its proper divisors (738483080).

56131560241 is an frugal number, since it uses more digits than its factorization.

56131560241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6156 (or 3078 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 56131560241 in words is "fifty-six billion, one hundred thirty-one million, five hundred sixty thousand, two hundred forty-one".

Divisors: 1 79 2999 6241 236921 8994001 18716759 710526079 56131560241