Base | Representation |
---|---|
bin | 111010111101… |
… | …0111010100000 |
3 | 2011011111111211 |
4 | 1311322322200 |
5 | 30403142120 |
6 | 3022315504 |
7 | 523514626 |
oct | 165727240 |
9 | 64144454 |
10 | 30912160 |
11 | 164a3844 |
12 | a428b94 |
13 | 6534226 |
14 | 4169516 |
15 | 2aa925a |
hex | 1d7aea0 |
30912160 has 24 divisors (see below), whose sum is σ = 73030356. Its totient is φ = 12364800.
The previous prime is 30912143. The next prime is 30912163. The reversal of 30912160 is 6121903.
It can be written as a sum of positive squares in 2 ways, for example, as 30603024 + 309136 = 5532^2 + 556^2 .
It is not an unprimeable number, because it can be changed into a prime (30912163) 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, 96441 + ... + 96760.
Almost surely, 230912160 is an apocalyptic number.
It is an amenable number.
30912160 is an abundant number, since it is smaller than the sum of its proper divisors (42118196).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30912160 is a wasteful number, since it uses less digits than its factorization.
30912160 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 193216 (or 193208 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 22.
The square root of 30912160 is about 5559.8705020891. The cubic root of 30912160 is about 313.8410760818.
The spelling of 30912160 in words is "thirty million, nine hundred twelve thousand, one hundred sixty".
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