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232230905865 = 32575313910207
BaseRepresentation
bin1101100001001000001…
…0100110100000001001
3211012102120102100101200
43120102002212200021
512301102102441430
6254404014134413
722530620062410
oct3302202464011
9735376370350
10232230905865
118a541323892
12390117b1409
1318b8c946cca
14b350930477
156092d72460
hex36120a6809

232230905865 has 48 divisors (see below), whose sum is σ = 468718368768. Its totient is φ = 104159622528.

The previous prime is 232230905839. The next prime is 232230905873. The reversal of 232230905865 is 568509032232.

232230905865 is a `hidden beast` number, since 2 + 32 + 2 + 30 + 9 + 0 + 586 + 5 = 666.

It is not a de Polignac number, because 232230905865 - 27 = 232230905737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 232230905865.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6938409 + ... + 6971798.

It is an arithmetic number, because the mean of its divisors is an integer number (9764966016).

Almost surely, 2232230905865 is an apocalyptic number.

It is an amenable number.

232230905865 is an abundant number, since it is smaller than the sum of its proper divisors (236487462903).

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

232230905865 is a wasteful number, since it uses less digits than its factorization.

232230905865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13910278 (or 13910275 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 232230905865 in words is "two hundred thirty-two billion, two hundred thirty million, nine hundred five thousand, eight hundred sixty-five".

Divisors: 1 3 5 7 9 15 21 35 45 53 63 105 159 265 315 371 477 795 1113 1855 2385 3339 5565 16695 13910207 41730621 69551035 97371449 125191863 208653105 292114347 486857245 625959315 737240971 876343041 1460571735 2211722913 3686204855 4381715205 5160686797 6635168739 11058614565 15482060391 25803433985 33175843695 46446181173 77410301955 232230905865