Base | Representation |
---|---|
bin | 100101111110010001… |
… | …0001011110000001011 |
3 | 21210111002121201220012 |
4 | 1023330202023300023 |
5 | 2314001313341140 |
6 | 101243430422135 |
7 | 5614535345051 |
oct | 1137442136013 |
9 | 253432551805 |
10 | 81546230795 |
11 | 316467a3177 |
12 | 1397980194b |
13 | 78c7592993 |
14 | 3d382741d1 |
15 | 21c40eb265 |
hex | 12fc88bc0b |
81546230795 has 32 divisors (see below), whose sum is σ = 100162621440. Its totient is φ = 63714568320.
The previous prime is 81546230699. The next prime is 81546230803. The reversal of 81546230795 is 59703264518.
It is a happy number.
It is not a de Polignac number, because 81546230795 - 28 = 81546230539 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44535530 + ... + 44537360.
It is an arithmetic number, because the mean of its divisors is an integer number (3130081920).
It is a 1-persistent number, because it is pandigital, but 2⋅81546230795 = 163092461590 is not.
Almost surely, 281546230795 is an apocalyptic number.
81546230795 is a deficient number, since it is larger than the sum of its proper divisors (18616390645).
81546230795 is a wasteful number, since it uses less digits than its factorization.
81546230795 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2795.
The product of its (nonzero) digits is 1814400, while the sum is 50.
The spelling of 81546230795 in words is "eighty-one billion, five hundred forty-six million, two hundred thirty thousand, seven hundred ninety-five".
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