Base | Representation |
---|---|
bin | 111001111110… |
… | …1101000010010 |
3 | 2010012102120200 |
4 | 1303331220102 |
5 | 30240231434 |
6 | 3003320030 |
7 | 516246543 |
oct | 163755022 |
9 | 63172520 |
10 | 30398994 |
11 | 1618323a |
12 | a220016 |
13 | 63b4792 |
14 | 40744ca |
15 | 2a07199 |
hex | 1cfda12 |
30398994 has 24 divisors (see below), whose sum is σ = 66031680. Its totient is φ = 10107288.
The previous prime is 30398957. The next prime is 30399001. The reversal of 30398994 is 49989303.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5979 + ... + 9825.
It is an arithmetic number, because the mean of its divisors is an integer number (2751320).
Almost surely, 230398994 is an apocalyptic number.
30398994 is an abundant number, since it is smaller than the sum of its proper divisors (35632686).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30398994 is a wasteful number, since it uses less digits than its factorization.
30398994 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4294 (or 4291 counting only the distinct ones).
The product of its (nonzero) digits is 209952, while the sum is 45.
The square root of 30398994 is about 5513.5282714429. The cubic root of 30398994 is about 312.0947074420.
The spelling of 30398994 in words is "thirty million, three hundred ninety-eight thousand, nine hundred ninety-four".
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