Base | Representation |
---|---|
bin | 111010111010… |
… | …0011000100100 |
3 | 2011010010211011 |
4 | 1311310120210 |
5 | 30401313122 |
6 | 3021552004 |
7 | 523343635 |
oct | 165643044 |
9 | 64103734 |
10 | 30885412 |
11 | 16485738 |
12 | a415604 |
13 | 6524cbc |
14 | 415d88c |
15 | 2aa1377 |
hex | 1d74624 |
30885412 has 24 divisors (see below), whose sum is σ = 59371200. Its totient is φ = 13993056.
The previous prime is 30885391. The next prime is 30885419. The reversal of 30885412 is 21458803.
It is not an unprimeable number, because it can be changed into a prime (30885419) 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, 7087 + ... + 10582.
It is an arithmetic number, because the mean of its divisors is an integer number (2473800).
Almost surely, 230885412 is an apocalyptic number.
It is an amenable number.
30885412 is a deficient number, since it is larger than the sum of its proper divisors (28485788).
30885412 is a wasteful number, since it uses less digits than its factorization.
30885412 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17715 (or 17713 counting only the distinct ones).
The product of its (nonzero) digits is 7680, while the sum is 31.
The square root of 30885412 is about 5557.4645298013. The cubic root of 30885412 is about 313.7505287209.
The spelling of 30885412 in words is "thirty million, eight hundred eighty-five thousand, four hundred twelve".
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