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231064987464960 = 283511113101947507
BaseRepresentation
bin110100100010011100000010…
…011111110111010100000000
31010022010121010021010112000020
4310202130002133313110000
5220241232043242334320
62135233442334053440
766445615536056655
oct6442340237672400
91108117107115006
10231064987464960
1167696124632620
1221ab9b3894a280
139bc14477b402c
14410b868427c2c
151baa7e5b0e940
hexd227027f7500

231064987464960 has 576 divisors, whose sum is σ = 812989915960320. Its totient is φ = 55464387543040.

The previous prime is 231064987464917. The next prime is 231064987465001. The reversal of 231064987464960 is 69464789460132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4863785527 + ... + 4863833033.

It is an arithmetic number, because the mean of its divisors is an integer number (1411440826320).

Almost surely, 2231064987464960 is an apocalyptic number.

231064987464960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231064987464960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406494957980160).

231064987464960 is an abundant number, since it is smaller than the sum of its proper divisors (581924928495360).

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

231064987464960 is a wasteful number, since it uses less digits than its factorization.

231064987464960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48674 (or 48660 counting only the distinct ones).

The product of its (nonzero) digits is 376233984, while the sum is 69.

The spelling of 231064987464960 in words is "two hundred thirty-one trillion, sixty-four billion, nine hundred eighty-seven million, four hundred sixty-four thousand, nine hundred sixty".