Base | Representation |
---|---|
bin | 111011000110… |
… | …1001001010000 |
3 | 2011022021221110 |
4 | 1312031021100 |
5 | 30413034312 |
6 | 3024053320 |
7 | 524245422 |
oct | 166151120 |
9 | 64267843 |
10 | 30986832 |
11 | 16544958 |
12 | a464240 |
13 | 655c206 |
14 | 4188812 |
15 | 2ac143c |
hex | 1d8d250 |
30986832 has 40 divisors (see below), whose sum is σ = 81916384. Its totient is φ = 10088064.
The previous prime is 30986831. The next prime is 30986833. The reversal of 30986832 is 23868903.
It is an interprime number because it is at equal distance from previous prime (30986831) and next prime (30986833).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30986831) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5443 + ... + 9570.
Almost surely, 230986832 is an apocalyptic number.
It is an amenable number.
30986832 is an abundant number, since it is smaller than the sum of its proper divisors (50929552).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30986832 is a wasteful number, since it uses less digits than its factorization.
30986832 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15067 (or 15061 counting only the distinct ones).
The product of its (nonzero) digits is 62208, while the sum is 39.
The square root of 30986832 is about 5566.5817159187. The cubic root of 30986832 is about 314.0935796920.
The spelling of 30986832 in words is "thirty million, nine hundred eighty-six thousand, eight hundred thirty-two".
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