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53906912172 = 22325297282691
BaseRepresentation
bin110010001101000110…
…100011001110101100
312011010212100212120200
4302031012203032230
51340400132142142
640433044113500
73615602123151
oct621506431654
9164125325520
1053906912172
1120953056a93
12a545395890
1351112cab89
142875572228
15160787d64c
hexc8d1a33ac

53906912172 has 36 divisors (see below), whose sum is σ = 136290901656. Its totient is φ = 17965514880.

The previous prime is 53906912149. The next prime is 53906912177. The reversal of 53906912172 is 27121960935.

It is a happy number.

53906912172 is a `hidden beast` number, since 5 + 390 + 6 + 91 + 2 + 172 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (53906912177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49347 + ... + 332037.

Almost surely, 253906912172 is an apocalyptic number.

It is an amenable number.

53906912172 is an abundant number, since it is smaller than the sum of its proper divisors (82383989484).

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

53906912172 is a wasteful number, since it uses less digits than its factorization.

53906912172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287998 (or 287993 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 53906912172 in words is "fifty-three billion, nine hundred six million, nine hundred twelve thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 5297 10594 15891 21188 31782 47673 63564 95346 190692 282691 565382 848073 1130764 1696146 2544219 3392292 5088438 10176876 1497414227 2994828454 4492242681 5989656908 8984485362 13476728043 17968970724 26953456086 53906912172