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54386866764 = 223213831109229
BaseRepresentation
bin110010101001101101…
…011011101001001100
312012101022111002111200
4302221231123221030
51342341014214024
640552431145500
73633520511526
oct625155335114
9165338432450
1054386866764
1121079a71a7a
12a65a075290
135189884c89
1428bd1caa16
151634a872c9
hexca9b5ba4c

54386866764 has 36 divisors (see below), whose sum is σ = 137489111760. Its totient is φ = 18127478880.

The previous prime is 54386866753. The next prime is 54386866789. The reversal of 54386866764 is 46766868345.

54386866764 is a `hidden beast` number, since 5 + 438 + 6 + 86 + 67 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 443302 + ... + 552530.

Almost surely, 254386866764 is an apocalyptic number.

It is an amenable number.

54386866764 is an abundant number, since it is smaller than the sum of its proper divisors (83102244996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54386866764 is a wasteful number, since it uses less digits than its factorization.

54386866764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123070 (or 123065 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 63.

The spelling of 54386866764 in words is "fifty-four billion, three hundred eighty-six million, eight hundred sixty-six thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 18 36 13831 27662 41493 55324 82986 109229 124479 165972 218458 248958 327687 436916 497916 655374 983061 1310748 1966122 3932244 1510746299 3021492598 4532238897 6042985196 9064477794 13596716691 18128955588 27193433382 54386866764