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85968608490752 = 281325831913609
BaseRepresentation
bin10011100011000000100000…
…010111101111010100000000
3102021101112000010201200022112
4103203000200113233110000
542232002202233201002
6502501233350354452
724052012155162431
oct2343004027572400
9367345003650275
1085968608490752
112543509a329019
12978536105ba28
1338c7a60762070
141732c8d5d7488
159e1392a2d852
hex4e30205ef500

85968608490752 has 36 divisors (see below), whose sum is σ = 184801509965940. Its totient is φ = 39677819301888.

The previous prime is 85968608490733. The next prime is 85968608490841. The reversal of 85968608490752 is 25709480686958.

It can be written as a sum of positive squares in 2 ways, for example, as 31238441226496 + 54730167264256 = 5589136^2 + 7397984^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12915953477 + ... + 12915960132.

Almost surely, 285968608490752 is an apocalyptic number.

It is an amenable number.

85968608490752 is an abundant number, since it is smaller than the sum of its proper divisors (98832901475188).

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

85968608490752 is a wasteful number, since it uses less digits than its factorization.

85968608490752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25831913638 (or 25831913624 counting only the distinct ones).

The product of its (nonzero) digits is 2090188800, while the sum is 77.

The spelling of 85968608490752 in words is "eighty-five trillion, nine hundred sixty-eight billion, six hundred eight million, four hundred ninety thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 128 208 256 416 832 1664 3328 25831913609 51663827218 103327654436 206655308872 335814876917 413310617744 671629753834 826621235488 1343259507668 1653242470976 2686519015336 3306484941952 5373038030672 6612969883904 10746076061344 21492152122688 42984304245376 85968608490752