Base | Representation |
---|---|
bin | 111010010110… |
… | …0010000100100 |
3 | 2010120010120112 |
4 | 1310230100210 |
5 | 30312334423 |
6 | 3011352152 |
7 | 521003432 |
oct | 164542044 |
9 | 63503515 |
10 | 30589988 |
11 | 162a3790 |
12 | a2b2658 |
13 | 64506b0 |
14 | 40c3d52 |
15 | 2a43a78 |
hex | 1d2c424 |
30589988 has 24 divisors (see below), whose sum is σ = 62892480. Its totient is φ = 12834720.
The previous prime is 30589973. The next prime is 30589991. The reversal of 30589988 is 88998503.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26168 + ... + 27311.
It is an arithmetic number, because the mean of its divisors is an integer number (2620520).
Almost surely, 230589988 is an apocalyptic number.
It is an amenable number.
30589988 is an abundant number, since it is smaller than the sum of its proper divisors (32302492).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30589988 is a wasteful number, since it uses less digits than its factorization.
30589988 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 53507 (or 53505 counting only the distinct ones).
The product of its (nonzero) digits is 622080, while the sum is 50.
The square root of 30589988 is about 5530.8216387803. The cubic root of 30589988 is about 312.7469638170.
The spelling of 30589988 in words is "thirty million, five hundred eighty-nine thousand, nine hundred eighty-eight".
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