Base | Representation |
---|---|
bin | 111010101001… |
… | …1100101011100 |
3 | 2010212022112110 |
4 | 1311103211130 |
5 | 30333013233 |
6 | 3015034020 |
7 | 522244155 |
oct | 165234534 |
9 | 63768473 |
10 | 30751068 |
11 | 163a3807 |
12 | a36b910 |
13 | 64a8aca |
14 | 412692c |
15 | 2a76663 |
hex | 1d5395c |
30751068 has 12 divisors (see below), whose sum is σ = 71752520. Its totient is φ = 10250352.
The previous prime is 30751027. The next prime is 30751087. The reversal of 30751068 is 86015703.
It is a tau number, because it is divible by the number of its divisors (12).
It is a congruent 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, 1281283 + ... + 1281306.
Almost surely, 230751068 is an apocalyptic number.
It is an amenable number.
30751068 is an abundant number, since it is smaller than the sum of its proper divisors (41001452).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30751068 is a wasteful number, since it uses less digits than its factorization.
30751068 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2562596 (or 2562594 counting only the distinct ones).
The product of its (nonzero) digits is 5040, while the sum is 30.
The square root of 30751068 is about 5545.3645506856. The cubic root of 30751068 is about 313.2949548085.
The spelling of 30751068 in words is "thirty million, seven hundred fifty-one thousand, sixty-eight".
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