Base | Representation |
---|---|
bin | 111011000110… |
… | …0010000000000 |
3 | 2011022002220202 |
4 | 1312030100000 |
5 | 30412430133 |
6 | 3024024332 |
7 | 524231636 |
oct | 166142000 |
9 | 64262822 |
10 | 30983168 |
11 | 16542127 |
12 | a4620a8 |
13 | 655a648 |
14 | 4187356 |
15 | 2ac02e8 |
hex | 1d8c400 |
30983168 has 44 divisors (see below), whose sum is σ = 62883840. Its totient is φ = 15255552.
The previous prime is 30983143. The next prime is 30983207. The reversal of 30983168 is 86138903.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80705 + ... + 81087.
Almost surely, 230983168 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30983168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31441920).
30983168 is an abundant number, since it is smaller than the sum of its proper divisors (31900672).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30983168 is an equidigital number, since it uses as much as digits as its factorization.
30983168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 482 (or 464 counting only the distinct ones).
The product of its (nonzero) digits is 31104, while the sum is 38.
The square root of 30983168 is about 5566.2525993706. The cubic root of 30983168 is about 314.0811993338.
It can be divided in two parts, 30 and 983168, that multiplied together give a triangular number (29495040 = T7680).
The spelling of 30983168 in words is "thirty million, nine hundred eighty-three thousand, one hundred sixty-eight".
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