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53867221889 = 1331943114173
BaseRepresentation
bin110010001010101111…
…001001001110000001
312011001002200101202012
4302022233021032001
51340310002100024
640425105302305
73614610555065
oct621257111601
9164032611665
1053867221889
11209327080a8
12a534034995
1351060122c0
14287019daa5
15160413d50e
hexc8abc9381

53867221889 has 16 divisors (see below), whose sum is σ = 59892747264. Its totient is φ = 48111105600.

The previous prime is 53867221873. The next prime is 53867221897. The reversal of 53867221889 is 98812276835.

It is a cyclic number.

It is not a de Polignac number, because 53867221889 - 24 = 53867221873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53867224889) 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, 3793607 + ... + 3807779.

It is an arithmetic number, because the mean of its divisors is an integer number (3743296704).

Almost surely, 253867221889 is an apocalyptic number.

It is an amenable number.

53867221889 is a deficient number, since it is larger than the sum of its proper divisors (6025525375).

53867221889 is a wasteful number, since it uses less digits than its factorization.

53867221889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23648.

The product of its digits is 11612160, while the sum is 59.

The spelling of 53867221889 in words is "fifty-three billion, eight hundred sixty-seven million, two hundred twenty-one thousand, eight hundred eighty-nine".

Divisors: 1 13 31 403 9431 14173 122603 184249 292361 439363 3800693 5711719 133665563 1737652319 4143632453 53867221889