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105831764808 = 23371157268271
BaseRepresentation
bin110001010010000010…
…0001001001101001000
3101010011121010200121220
41202210010021031020
53213220412433213
6120341330002040
710434416105160
oct1424404111510
9333147120556
10105831764808
11409792aa340
1218616a16320
139c97a93553
14519d7995a0
152b461dee23
hex18a4109348

105831764808 has 64 divisors (see below), whose sum is σ = 329865246720. Its totient is φ = 27488769600.

The previous prime is 105831764791. The next prime is 105831764851. The reversal of 105831764808 is 808467138501.

It is a happy number.

It is a super-2 number, since 2×1058317648082 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28632288 + ... + 28635983.

It is an arithmetic number, because the mean of its divisors is an integer number (5154144480).

Almost surely, 2105831764808 is an apocalyptic number.

It is an amenable number.

105831764808 is an abundant number, since it is smaller than the sum of its proper divisors (224033481912).

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

105831764808 is a wasteful number, since it uses less digits than its factorization.

105831764808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57268298 (or 57268294 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 51.

The spelling of 105831764808 in words is "one hundred five billion, eight hundred thirty-one million, seven hundred sixty-four thousand, eight hundred eight".

Divisors: 1 2 3 4 6 7 8 11 12 14 21 22 24 28 33 42 44 56 66 77 84 88 132 154 168 231 264 308 462 616 924 1848 57268271 114536542 171804813 229073084 343609626 400877897 458146168 629950981 687219252 801755794 1202633691 1259901962 1374438504 1603511588 1889852943 2405267382 2519803924 3207023176 3779705886 4409656867 4810534764 5039607848 7559411772 8819313734 9621069528 13228970601 15118823544 17638627468 26457941202 35277254936 52915882404 105831764808