Base | Representation |
---|---|
bin | 10000110100000010… |
… | …100000101100010111 |
3 | 1201121010210111122021 |
4 | 100310002200230113 |
5 | 243433023130430 |
6 | 12143213114011 |
7 | 1206240323521 |
oct | 206402405427 |
9 | 51533714567 |
10 | 18052942615 |
11 | 7724462a94 |
12 | 35b9a88907 |
13 | 19191a9186 |
14 | c3388ca11 |
15 | 709d6507a |
hex | 4340a0b17 |
18052942615 has 16 divisors (see below), whose sum is σ = 21837543840. Its totient is φ = 14326519680.
The previous prime is 18052942613. The next prime is 18052942669. The reversal of 18052942615 is 51624925081.
It is not a de Polignac number, because 18052942615 - 21 = 18052942613 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18052942613) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 877345 + ... + 897685.
It is an arithmetic number, because the mean of its divisors is an integer number (1364846490).
Almost surely, 218052942615 is an apocalyptic number.
18052942615 is a deficient number, since it is larger than the sum of its proper divisors (3784601225).
18052942615 is a wasteful number, since it uses less digits than its factorization.
18052942615 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21762.
The product of its (nonzero) digits is 172800, while the sum is 43.
The spelling of 18052942615 in words is "eighteen billion, fifty-two million, nine hundred forty-two thousand, six hundred fifteen".
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