Base | Representation |
---|---|
bin | 10000111001110011… |
… | …110101111110100010 |
3 | 1201211212222101101210 |
4 | 100321303311332202 |
5 | 244132314322210 |
6 | 12200552210550 |
7 | 1211524264620 |
oct | 207163657642 |
9 | 51755871353 |
10 | 18149760930 |
11 | 7774081024 |
12 | 3626399a56 |
13 | 1933277712 |
14 | c42692510 |
15 | 7135dbe20 |
hex | 439cf5fa2 |
18149760930 has 64 divisors (see below), whose sum is σ = 49793172480. Its totient is φ = 4147602624.
The previous prime is 18149760899. The next prime is 18149761067. The reversal of 18149760930 is 3906794181.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 18149760930.
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, 1560597 + ... + 1572183.
It is an arithmetic number, because the mean of its divisors is an integer number (778018320).
Almost surely, 218149760930 is an apocalyptic number.
18149760930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18149760930 is an abundant number, since it is smaller than the sum of its proper divisors (31643411550).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18149760930 is a wasteful number, since it uses less digits than its factorization.
18149760930 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19063.
The product of its (nonzero) digits is 326592, while the sum is 48.
The spelling of 18149760930 in words is "eighteen billion, one hundred forty-nine million, seven hundred sixty thousand, nine hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.081 sec. • engine limits •