Base | Representation |
---|---|
bin | 111010111000… |
… | …1010010101000 |
3 | 2011002111102222 |
4 | 1311301102220 |
5 | 30400411434 |
6 | 3021413212 |
7 | 523262000 |
oct | 165612250 |
9 | 64074388 |
10 | 30872744 |
11 | 16477171 |
12 | a40a208 |
13 | 651c2c6 |
14 | 4159000 |
15 | 2a9c72e |
hex | 1d714a8 |
30872744 has 32 divisors (see below), whose sum is σ = 67512000. Its totient is φ = 13230000.
The previous prime is 30872719. The next prime is 30872747. The reversal of 30872744 is 44727803.
It is not an unprimeable number, because it can be changed into a prime (30872747) 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, 2882 + ... + 8369.
It is an arithmetic number, because the mean of its divisors is an integer number (2109750).
Almost surely, 230872744 is an apocalyptic number.
It is an amenable number.
30872744 is an abundant number, since it is smaller than the sum of its proper divisors (36639256).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30872744 is a wasteful number, since it uses less digits than its factorization.
30872744 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11278 (or 11260 counting only the distinct ones).
The product of its (nonzero) digits is 37632, while the sum is 35.
The square root of 30872744 is about 5556.3246845374. The cubic root of 30872744 is about 313.7076267490.
The spelling of 30872744 in words is "thirty million, eight hundred seventy-two thousand, seven hundred forty-four".
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