Base | Representation |
---|---|
bin | 10000111000101010… |
… | …000111111101000011 |
3 | 1201210112121120110012 |
4 | 100320222013331003 |
5 | 244112342422112 |
6 | 12155022055135 |
7 | 1211201106503 |
oct | 207052077503 |
9 | 51715546405 |
10 | 18130435907 |
11 | 7764181931 |
12 | 361ba1a4ab |
13 | 192c26c5ac |
14 | c3dca1a03 |
15 | 711a71022 |
hex | 438a87f43 |
18130435907 has 8 divisors (see below), whose sum is σ = 18607798800. Its totient is φ = 17659154304.
The previous prime is 18130435871. The next prime is 18130435909. The reversal of 18130435907 is 70953403181.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 18130435907 - 214 = 18130419523 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (18130435909) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1514282 + ... + 1526207.
It is an arithmetic number, because the mean of its divisors is an integer number (2325974850).
Almost surely, 218130435907 is an apocalyptic number.
18130435907 is a deficient number, since it is larger than the sum of its proper divisors (477362893).
18130435907 is an equidigital number, since it uses as much as digits as its factorization.
18130435907 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3040645.
The product of its (nonzero) digits is 90720, while the sum is 41.
The spelling of 18130435907 in words is "eighteen billion, one hundred thirty million, four hundred thirty-five thousand, nine hundred seven".
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