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52920005864 = 23112401925037
BaseRepresentation
bin110001010010010001…
…110011010011101000
312001121002022211122012
4301102101303103220
51331340010141424
640151111215052
73552256425245
oct612221632350
9161532284565
1052920005864
1120496a66740
12a30a977488
134cb49c674b
1427c04725cc
15159add6b0e
hexc524734e8

52920005864 has 32 divisors (see below), whose sum is σ = 108254296800. Its totient is φ = 24052585920.

The previous prime is 52920005861. The next prime is 52920005893. The reversal of 52920005864 is 46850002925.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (52920005861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2101154 + ... + 2126190.

It is an arithmetic number, because the mean of its divisors is an integer number (3382946775).

Almost surely, 252920005864 is an apocalyptic number.

It is an amenable number.

52920005864 is an abundant number, since it is smaller than the sum of its proper divisors (55334290936).

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

52920005864 is a wasteful number, since it uses less digits than its factorization.

52920005864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49073 (or 49069 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 52920005864 in words is "fifty-two billion, nine hundred twenty million, five thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 11 22 44 88 24019 25037 48038 50074 96076 100148 192152 200296 264209 275407 528418 550814 1056836 1101628 2113672 2203256 601363703 1202727406 2405454812 4810909624 6615000733 13230001466 26460002932 52920005864