Base | Representation |
---|---|
bin | 111010011010… |
… | …1100110001100 |
3 | 2010122002001010 |
4 | 1310311212030 |
5 | 30320100421 |
6 | 3012245220 |
7 | 521223102 |
oct | 164654614 |
9 | 63562033 |
10 | 30628236 |
11 | 1631a4a1 |
12 | a310810 |
13 | 6464c22 |
14 | 40d3c72 |
15 | 2a50076 |
hex | 1d3598c |
30628236 has 24 divisors (see below), whose sum is σ = 71943424. Its totient is φ = 10141200.
The previous prime is 30628231. The next prime is 30628243. The reversal of 30628236 is 63282603.
It is not an unprimeable number, because it can be changed into a prime (30628231) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 6640 + ... + 10263.
Almost surely, 230628236 is an apocalyptic number.
It is an amenable number.
30628236 is an abundant number, since it is smaller than the sum of its proper divisors (41315188).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30628236 is a wasteful number, since it uses less digits than its factorization.
30628236 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17061 (or 17059 counting only the distinct ones).
The product of its (nonzero) digits is 10368, while the sum is 30.
The square root of 30628236 is about 5534.2782727290. The cubic root of 30628236 is about 312.8772565979.
The spelling of 30628236 in words is "thirty million, six hundred twenty-eight thousand, two hundred thirty-six".
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