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231049966560 = 25357223894799
BaseRepresentation
bin1101011100101110100…
…1101011001111100000
3211002101021021102012220
43113023221223033200
512241142242412220
6254050510351040
722456430211600
oct3271351531740
9732337242186
10231049966560
1189a95756696
12389421bb480
1318a3209755a
14b27bb62c00
15602434e540
hex35cba6b3e0

231049966560 has 576 divisors, whose sum is σ = 893555712000. Its totient is φ = 49937276928.

The previous prime is 231049966547. The next prime is 231049966561. The reversal of 231049966560 is 65669940132.

231049966560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231049966561) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 48143041 + ... + 48147839.

It is an arithmetic number, because the mean of its divisors is an integer number (1551312000).

Almost surely, 2231049966560 is an apocalyptic number.

231049966560 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 231049966560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446777856000).

231049966560 is an abundant number, since it is smaller than the sum of its proper divisors (662505745440).

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

231049966560 is a wasteful number, since it uses less digits than its factorization.

231049966560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4943 (or 4928 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 51.

The spelling of 231049966560 in words is "two hundred thirty-one billion, forty-nine million, nine hundred sixty-six thousand, five hundred sixty".