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231373488552 = 23350991890677
BaseRepresentation
bin1101011101111011101…
…1110100000110101000
3211010012211001000221220
43113132323310012220
512242323103113202
6254142544502040
722500436126443
oct3273673640650
9733184030856
10231373488552
118a141336538
1238a1261a920
1318a8410c89b
14b2acada65a
156042957abc
hex35deef41a8

231373488552 has 32 divisors (see below), whose sum is σ = 578547468000. Its totient is φ = 77109329984.

The previous prime is 231373488527. The next prime is 231373488571. The reversal of 231373488552 is 255884373132.

It is a junction number, because it is equal to n+sod(n) for n = 231373488495 and 231373488504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 822963 + ... + 1067714.

It is an arithmetic number, because the mean of its divisors is an integer number (18079608375).

Almost surely, 2231373488552 is an apocalyptic number.

It is an amenable number.

231373488552 is an abundant number, since it is smaller than the sum of its proper divisors (347173979448).

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

231373488552 is a wasteful number, since it uses less digits than its factorization.

231373488552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895785 (or 1895781 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 51.

The spelling of 231373488552 in words is "two hundred thirty-one billion, three hundred seventy-three million, four hundred eighty-eight thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 5099 10198 15297 20396 30594 40792 61188 122376 1890677 3781354 5672031 7562708 11344062 15125416 22688124 45376248 9640562023 19281124046 28921686069 38562248092 57843372138 77124496184 115686744276 231373488552