Base | Representation |
---|---|
bin | 10001011010111110… |
… | …000100000001000111 |
3 | 1210021122210201200100 |
4 | 101122332010001013 |
5 | 301302224304012 |
6 | 12332104215143 |
7 | 1231361060505 |
oct | 213276040107 |
9 | 53248721610 |
10 | 18706088007 |
11 | 7a2a10a872 |
12 | 376076a4b3 |
13 | 19c15c1a39 |
14 | c9650b675 |
15 | 74737e8dc |
hex | 45af84047 |
18706088007 has 6 divisors (see below), whose sum is σ = 27019904912. Its totient is φ = 12470725332.
The previous prime is 18706088003. The next prime is 18706088017. The reversal of 18706088007 is 70088060781.
It is not a de Polignac number, because 18706088007 - 22 = 18706088003 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18706088003) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1039227103 + ... + 1039227120.
Almost surely, 218706088007 is an apocalyptic number.
18706088007 is a deficient number, since it is larger than the sum of its proper divisors (8313816905).
18706088007 is a wasteful number, since it uses less digits than its factorization.
18706088007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2078454229 (or 2078454226 counting only the distinct ones).
The product of its (nonzero) digits is 150528, while the sum is 45.
The spelling of 18706088007 in words is "eighteen billion, seven hundred six million, eighty-eight thousand, seven".
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