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80855529754518 = 23217231260691421
BaseRepresentation
bin10010011000100110100101…
…001000010000111110010110
3101121021201020220000120101100
4102120212211020100332112
541044214111104121033
6443544303444210530
723013422255053401
oct2230464510207626
9347251226016340
1080855529754518
1123843701713342
12909a415399a46
13361684a3ac5ac
1415d75ddc0ad38
15953387cbb513
hex4989a5210f96

80855529754518 has 24 divisors (see below), whose sum is σ = 175197148772256. Its totient is φ = 26950278999600.

The previous prime is 80855529754481. The next prime is 80855529754537. The reversal of 80855529754518 is 81545792555808.

80855529754518 is a `hidden beast` number, since 8 + 0 + 8 + 5 + 5 + 52 + 9 + 7 + 54 + 518 = 666.

It is a super-3 number, since 3×808555297545183 (a number of 43 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130035553 + ... + 130655868.

It is an arithmetic number, because the mean of its divisors is an integer number (7299881198844).

Almost surely, 280855529754518 is an apocalyptic number.

80855529754518 is an abundant number, since it is smaller than the sum of its proper divisors (94341619017738).

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

80855529754518 is a wasteful number, since it uses less digits than its factorization.

80855529754518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260708660 (or 260708657 counting only the distinct ones).

The product of its (nonzero) digits is 806400000, while the sum is 72.

The spelling of 80855529754518 in words is "eighty trillion, eight hundred fifty-five billion, five hundred twenty-nine million, seven hundred fifty-four thousand, five hundred eighteen".

Divisors: 1 2 3 6 9 18 17231 34462 51693 103386 155079 310158 260691421 521382842 782074263 1564148526 2346222789 4692445578 4491973875251 8983947750502 13475921625753 26951843251506 40427764877259 80855529754518