Base | Representation |
---|---|
bin | 111010101100… |
… | …0111010000100 |
3 | 2010220102102212 |
4 | 1311120322010 |
5 | 30334212433 |
6 | 3015322552 |
7 | 522364550 |
oct | 165307204 |
9 | 63812385 |
10 | 30772868 |
11 | 16409125 |
12 | a380458 |
13 | 64b59c9 |
14 | 4130860 |
15 | 2a7cd48 |
hex | 1d58e84 |
30772868 has 12 divisors (see below), whose sum is σ = 61545792. Its totient is φ = 13188360.
The previous prime is 30772811. The next prime is 30772871. The reversal of 30772868 is 86827703.
30772868 is an admirable number.
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, 549488 + ... + 549543.
It is an arithmetic number, because the mean of its divisors is an integer number (5128816).
Almost surely, 230772868 is an apocalyptic number.
It is an amenable number.
30772868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30772868 is a wasteful number, since it uses less digits than its factorization.
30772868 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1099042 (or 1099040 counting only the distinct ones).
The product of its (nonzero) digits is 112896, while the sum is 41.
The square root of 30772868 is about 5547.3298081149. The cubic root of 30772868 is about 313.3689708472.
The spelling of 30772868 in words is "thirty million, seven hundred seventy-two thousand, eight hundred sixty-eight".
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