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59161108985 = 511297786957
BaseRepresentation
bin110111000110010001…
…101110000111111001
312122201001001201121122
4313012101232013321
51432130220441420
643102255515025
74163032062206
oct670621560771
9178631051548
1059161108985
11230a99a3900
12b570b28a75
13576aa0b484
142c132c2cad
151813c97725
hexdc646e1f9

59161108985 has 12 divisors (see below), whose sum is σ = 78033992484. Its totient is φ = 43026260640.

The previous prime is 59161108973. The next prime is 59161108991. The reversal of 59161108985 is 58980116195.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24340056169 + 34821052816 = 156013^2 + 186604^2 .

It is not a de Polignac number, because 59161108985 - 210 = 59161107961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48892874 + ... + 48894083.

It is an arithmetic number, because the mean of its divisors is an integer number (6502832707).

Almost surely, 259161108985 is an apocalyptic number.

59161108985 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

59161108985 is a deficient number, since it is larger than the sum of its proper divisors (18872883499).

59161108985 is a wasteful number, since it uses less digits than its factorization.

59161108985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97786984 (or 97786973 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 53.

The spelling of 59161108985 in words is "fifty-nine billion, one hundred sixty-one million, one hundred eight thousand, nine hundred eighty-five".

Divisors: 1 5 11 55 121 605 97786957 488934785 1075656527 5378282635 11832221797 59161108985