Base | Representation |
---|---|
bin | 11100101001000101… |
… | …000111101100100000 |
3 | 2221101022001000100111 |
4 | 130221011013230200 |
5 | 1000441004313133 |
6 | 22043404301104 |
7 | 2136053336563 |
oct | 345105075440 |
9 | 87338030314 |
10 | 30753979168 |
11 | 12051901810 |
12 | 5b63541794 |
13 | 2b91653b13 |
14 | 16ba6344da |
15 | beee101cd |
hex | 729147b20 |
30753979168 has 24 divisors (see below), whose sum is σ = 66051160560. Its totient is φ = 13979081280.
The previous prime is 30753979163. The next prime is 30753979181. The reversal of 30753979168 is 86197935703.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (30753979163) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43684278 + ... + 43684981.
It is an arithmetic number, because the mean of its divisors is an integer number (2752131690).
Almost surely, 230753979168 is an apocalyptic number.
It is an amenable number.
30753979168 is an abundant number, since it is smaller than the sum of its proper divisors (35297181392).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30753979168 is a wasteful number, since it uses less digits than its factorization.
30753979168 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 87369280 (or 87369272 counting only the distinct ones).
The product of its (nonzero) digits is 8573040, while the sum is 58.
The spelling of 30753979168 in words is "thirty billion, seven hundred fifty-three million, nine hundred seventy-nine thousand, one hundred sixty-eight".
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