Base | Representation |
---|---|
bin | 111010111000… |
… | …0010011101000 |
3 | 2011002021220122 |
4 | 1311300103220 |
5 | 30400244322 |
6 | 3021342412 |
7 | 523244150 |
oct | 165602350 |
9 | 64067818 |
10 | 30868712 |
11 | 16474136 |
12 | a407a08 |
13 | 651a514 |
14 | 4157760 |
15 | 2a9b442 |
hex | 1d704e8 |
30868712 has 32 divisors (see below), whose sum is σ = 66587520. Its totient is φ = 13141440.
The previous prime is 30868699. The next prime is 30868723. The reversal of 30868712 is 21786803.
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, 7037 + ... + 10547.
It is an arithmetic number, because the mean of its divisors is an integer number (2080860).
Almost surely, 230868712 is an apocalyptic number.
It is an amenable number.
30868712 is an abundant number, since it is smaller than the sum of its proper divisors (35718808).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30868712 is a wasteful number, since it uses less digits than its factorization.
30868712 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3681 (or 3677 counting only the distinct ones).
The product of its (nonzero) digits is 16128, while the sum is 35.
The square root of 30868712 is about 5555.9618429215. The cubic root of 30868712 is about 313.6939693493.
The spelling of 30868712 in words is "thirty million, eight hundred sixty-eight thousand, seven hundred twelve".
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