Base | Representation |
---|---|
bin | 1001101001101… |
… | …11101110111110 |
3 | 12122100122002110 |
4 | 10310313232332 |
5 | 131211444023 |
6 | 12011234450 |
7 | 2002136112 |
oct | 464675676 |
9 | 178318073 |
10 | 80968638 |
11 | 41782a33 |
12 | 23148a26 |
13 | 13a0c24a |
14 | aa79742 |
15 | 7195a93 |
hex | 4d37bbe |
80968638 has 16 divisors (see below), whose sum is σ = 167521680. Its totient is φ = 26058816.
The previous prime is 80968597. The next prime is 80968661. The reversal of 80968638 is 83686908.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232495 + ... + 232842.
It is an arithmetic number, because the mean of its divisors is an integer number (10470105).
Almost surely, 280968638 is an apocalyptic number.
80968638 is an abundant number, since it is smaller than the sum of its proper divisors (86553042).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80968638 is a wasteful number, since it uses less digits than its factorization.
80968638 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 465371.
The product of its (nonzero) digits is 497664, while the sum is 48.
The square root of 80968638 is about 8998.2574979826. The cubic root of 80968638 is about 432.6190221169.
The spelling of 80968638 in words is "eighty million, nine hundred sixty-eight thousand, six hundred thirty-eight".
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