Base | Representation |
---|---|
bin | 111001111111… |
… | …0010101001000 |
3 | 2010012120111222 |
4 | 1303332111020 |
5 | 30240324424 |
6 | 3003341212 |
7 | 516261113 |
oct | 163762510 |
9 | 63176458 |
10 | 30401864 |
11 | 16185409 |
12 | a221808 |
13 | 63b5b8c |
14 | 407557a |
15 | 2a07e5e |
hex | 1cfe548 |
30401864 has 32 divisors (see below), whose sum is σ = 58915200. Its totient is φ = 14696640.
The previous prime is 30401857. The next prime is 30401867. The reversal of 30401864 is 46810403.
It is not an unprimeable number, because it can be changed into a prime (30401867) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80027 + ... + 80405.
It is an arithmetic number, because the mean of its divisors is an integer number (1841100).
Almost surely, 230401864 is an apocalyptic number.
It is an amenable number.
30401864 is a deficient number, since it is larger than the sum of its proper divisors (28513336).
30401864 is a wasteful number, since it uses less digits than its factorization.
30401864 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 693 (or 689 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 26.
The square root of 30401864 is about 5513.7885342113. The cubic root of 30401864 is about 312.1045288594.
The spelling of 30401864 in words is "thirty million, four hundred one thousand, eight hundred sixty-four".
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