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231856004425968 = 24341321451729557
BaseRepresentation
bin110100101101111100101110…
…110010000110100011110000
31010101221012212121002121010000
4310231330232302012203300
5220342212044113112333
62141041102240510000
766560020634231646
oct6455745662064360
91111835777077100
10231856004425968
116797064103014a
12220072b691b300
139c4ac0966b500
144137c67711196
151bc1190475713
hexd2df2ec868f0

231856004425968 has 300 divisors, whose sum is σ = 727150980963528. Its totient is φ = 71291045030400.

The previous prime is 231856004425951. The next prime is 231856004425987. The reversal of 231856004425968 is 869524400658132.

231856004425968 is a `hidden beast` number, since 2 + 3 + 1 + 8 + 560 + 0 + 4 + 4 + 2 + 5 + 9 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 317439046 + ... + 318168602.

Almost surely, 2231856004425968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231856004425968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363575490481764).

231856004425968 is an abundant number, since it is smaller than the sum of its proper divisors (495294976537560).

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

231856004425968 is a wasteful number, since it uses less digits than its factorization.

231856004425968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731054 (or 731026 counting only the distinct ones).

The product of its (nonzero) digits is 99532800, while the sum is 63.

The spelling of 231856004425968 in words is "two hundred thirty-one trillion, eight hundred fifty-six billion, four million, four hundred twenty-five thousand, nine hundred sixty-eight".