Base | Representation |
---|---|
bin | 111001101100… |
… | …0101110111100 |
3 | 2002220202021102 |
4 | 1303120232330 |
5 | 30220412433 |
6 | 3000152232 |
7 | 515050130 |
oct | 163305674 |
9 | 62822242 |
10 | 30247868 |
11 | 1608a742 |
12 | a168678 |
13 | 6360a61 |
14 | 40353c0 |
15 | 29c74e8 |
hex | 1cd8bbc |
30247868 has 12 divisors (see below), whose sum is σ = 60495792. Its totient is φ = 12963360.
The previous prime is 30247859. The next prime is 30247871. The reversal of 30247868 is 86874203.
30247868 is an admirable number.
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, 540113 + ... + 540168.
It is an arithmetic number, because the mean of its divisors is an integer number (5041316).
Almost surely, 230247868 is an apocalyptic number.
It is an amenable number.
30247868 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.
30247868 is a wasteful number, since it uses less digits than its factorization.
30247868 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1080292 (or 1080290 counting only the distinct ones).
The product of its (nonzero) digits is 64512, while the sum is 38.
The square root of 30247868 is about 5499.8061784030. The cubic root of 30247868 is about 311.5766639688.
The spelling of 30247868 in words is "thirty million, two hundred forty-seven thousand, eight hundred sixty-eight".
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