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52906381692 = 2234408865141
BaseRepresentation
bin110001010001011101…
…110101000101111100
312001120010200122210020
4301101131311011330
51331323013203232
640145503212140
73552032552523
oct612135650574
9161503618706
1052906381692
112048a30069a
12a3062a7050
134cb1c363c8
1427bc7274ba
151599ae4e2c
hexc5177517c

52906381692 has 12 divisors (see below), whose sum is σ = 123448223976. Its totient is φ = 17635460560.

The previous prime is 52906381669. The next prime is 52906381721. The reversal of 52906381692 is 29618360925.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2204432559 + ... + 2204432582.

It is an arithmetic number, because the mean of its divisors is an integer number (10287351998).

Almost surely, 252906381692 is an apocalyptic number.

It is an amenable number.

52906381692 is an abundant number, since it is smaller than the sum of its proper divisors (70541842284).

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

52906381692 is a wasteful number, since it uses less digits than its factorization.

52906381692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4408865148 (or 4408865146 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 52906381692 in words is "fifty-two billion, nine hundred six million, three hundred eighty-one thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 12 4408865141 8817730282 13226595423 17635460564 26453190846 52906381692