Base | Representation |
---|---|
bin | 10000111000101010… |
… | …000110011101000100 |
3 | 1201210112121021000200 |
4 | 100320222012131010 |
5 | 244112342223024 |
6 | 12155022010500 |
7 | 1211201052546 |
oct | 207052063504 |
9 | 51715537020 |
10 | 18130429764 |
11 | 7764178257 |
12 | 361ba16a30 |
13 | 192c269865 |
14 | c3dc9d696 |
15 | 711a6e2c9 |
hex | 438a86744 |
18130429764 has 36 divisors (see below), whose sum is σ = 46947498780. Its totient is φ = 5896074240.
The previous prime is 18130429727. The next prime is 18130429777. The reversal of 18130429764 is 46792403181.
It can be written as a sum of positive squares in 2 ways, for example, as 10121969664 + 8008460100 = 100608^2 + 89490^2 .
It is a tau number, because it is divible by the number of its divisors (36).
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, 6140269 + ... + 6143220.
Almost surely, 218130429764 is an apocalyptic number.
It is an amenable number.
18130429764 is an abundant number, since it is smaller than the sum of its proper divisors (28817069016).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18130429764 is a wasteful number, since it uses less digits than its factorization.
18130429764 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12283540 (or 12283535 counting only the distinct ones).
The product of its (nonzero) digits is 290304, while the sum is 45.
The spelling of 18130429764 in words is "eighteen billion, one hundred thirty million, four hundred twenty-nine thousand, seven hundred sixty-four".
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