Base | Representation |
---|---|
bin | 111010111111… |
… | …0010010000100 |
3 | 2011012012102210 |
4 | 1311332102010 |
5 | 30404112311 |
6 | 3022503420 |
7 | 523603065 |
oct | 165762204 |
9 | 64165383 |
10 | 30925956 |
11 | 16503146 |
12 | a434b70 |
13 | 653a5a9 |
14 | 417056c |
15 | 2aad3a6 |
hex | 1d7e484 |
30925956 has 48 divisors (see below), whose sum is σ = 73801728. Its totient is φ = 10077600.
The previous prime is 30925933. The next prime is 30925997. The reversal of 30925956 is 65952903.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161821 + ... + 162011.
It is an arithmetic number, because the mean of its divisors is an integer number (1537536).
Almost surely, 230925956 is an apocalyptic number.
It is an amenable number.
30925956 is an abundant number, since it is smaller than the sum of its proper divisors (42875772).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30925956 is a wasteful number, since it uses less digits than its factorization.
30925956 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 432 (or 430 counting only the distinct ones).
The product of its (nonzero) digits is 72900, while the sum is 39.
The square root of 30925956 is about 5561.1110400710. Note that the first 3 decimals coincide. The cubic root of 30925956 is about 313.8877579003.
The spelling of 30925956 in words is "thirty million, nine hundred twenty-five thousand, nine hundred fifty-six".
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