Base | Representation |
---|---|
bin | 111010111011… |
… | …0111101110000 |
3 | 2011010200022201 |
4 | 1311312331300 |
5 | 30402132414 |
6 | 3022112544 |
7 | 523416520 |
oct | 165667560 |
9 | 64120281 |
10 | 30895984 |
11 | 16492679 |
12 | a41b754 |
13 | 6529a62 |
14 | 4163680 |
15 | 2aa4574 |
hex | 1d76f70 |
30895984 has 40 divisors (see below), whose sum is σ = 68709888. Its totient is φ = 13183680.
The previous prime is 30895913. The next prime is 30896017. The reversal of 30895984 is 48959803.
It is a congruent number.
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, 34389 + ... + 35275.
Almost surely, 230895984 is an apocalyptic number.
It is an amenable number.
30895984 is an abundant number, since it is smaller than the sum of its proper divisors (37813904).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30895984 is a wasteful number, since it uses less digits than its factorization.
30895984 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1213 (or 1207 counting only the distinct ones).
The product of its (nonzero) digits is 311040, while the sum is 46.
The square root of 30895984 is about 5558.4156015901. The cubic root of 30895984 is about 313.7863233132.
The spelling of 30895984 in words is "thirty million, eight hundred ninety-five thousand, nine hundred eighty-four".
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