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231493483734688 = 2572170986387449
BaseRepresentation
bin110100101000101011000110…
…110111011010011010100000
31010100122120010220110101020101
4310220223012313122122200
5220320242123314002223
62140202345512152144
766521565221214400
oct6450530667323240
91110576126411211
10231493483734688
116784092060015a
1221b68ba3398654
139c22984aba326
1441244b7040800
151bb6a240ec4ad
hexd28ac6dda6a0

231493483734688 has 72 divisors (see below), whose sum is σ = 530471639344500. Its totient is φ = 99153439515648.

The previous prime is 231493483734673. The next prime is 231493483734713. The reversal of 231493483734688 is 886437384394132.

It can be written as a sum of positive squares in 2 ways, for example, as 174432561973264 + 57060921761424 = 13207292^2 + 7553868^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 231493483734688.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40514013 + ... + 45873436.

Almost surely, 2231493483734688 is an apocalyptic number.

231493483734688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

231493483734688 is an abundant number, since it is smaller than the sum of its proper divisors (298978155609812).

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

231493483734688 is a wasteful number, since it uses less digits than its factorization.

231493483734688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86389182 (or 86389167 counting only the distinct ones).

The product of its digits is 2006581248, while the sum is 73.

The spelling of 231493483734688 in words is "two hundred thirty-one trillion, four hundred ninety-three billion, four hundred eighty-three million, seven hundred thirty-four thousand, six hundred eighty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 98 112 196 224 392 784 1568 1709 3418 6836 11963 13672 23926 27344 47852 54688 83741 95704 167482 191408 334964 382816 669928 1339856 2679712 86387449 172774898 345549796 604712143 691099592 1209424286 1382199184 2418848572 2764398368 4232985001 4837697144 8465970002 9675394288 16931940004 19350788576 33863880008 67727760016 135455520032 147636150341 295272300682 590544601364 1033453052387 1181089202728 2066906104774 2362178405456 4133812209548 4724356810912 7234171366709 8267624419096 14468342733418 16535248838192 28936685466836 33070497676384 57873370933672 115746741867344 231493483734688