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53751997164 = 2234479333097
BaseRepresentation
bin110010000011110111…
…100110001011101100
312010202001212101010210
4302003313212023230
51340041002402124
640405431502420
73612011302665
oct620367461354
9163661771123
1053751997164
1120883668058
12a501527a10
1350b819aaa8
14285cb6836c
1515e8e7ca29
hexc83de62ec

53751997164 has 12 divisors (see below), whose sum is σ = 125421326744. Its totient is φ = 17917332384.

The previous prime is 53751997093. The next prime is 53751997171. The reversal of 53751997164 is 46179915735.

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

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, 2239666537 + ... + 2239666560.

Almost surely, 253751997164 is an apocalyptic number.

It is an amenable number.

53751997164 is an abundant number, since it is smaller than the sum of its proper divisors (71669329580).

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

53751997164 is a wasteful number, since it uses less digits than its factorization.

53751997164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4479333104 (or 4479333102 counting only the distinct ones).

The product of its digits is 7144200, while the sum is 57.

The spelling of 53751997164 in words is "fifty-three billion, seven hundred fifty-one million, nine hundred ninety-seven thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 12 4479333097 8958666194 13437999291 17917332388 26875998582 53751997164