Base | Representation |
---|---|
bin | 111010000111… |
… | …1000010011010 |
3 | 2010100001101120 |
4 | 1310033002122 |
5 | 30300022143 |
6 | 3005030110 |
7 | 516664455 |
oct | 164170232 |
9 | 63301346 |
10 | 30470298 |
11 | 16221871 |
12 | a255336 |
13 | 640b081 |
14 | 409249c |
15 | 2a1d383 |
hex | 1d0f09a |
30470298 has 16 divisors (see below), whose sum is σ = 62427456. Its totient is φ = 9908960.
The previous prime is 30470291. The next prime is 30470309. The reversal of 30470298 is 89207403.
It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is not an unprimeable number, because it can be changed into a prime (30470291) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61686 + ... + 62177.
It is an arithmetic number, because the mean of its divisors is an integer number (3901716).
Almost surely, 230470298 is an apocalyptic number.
30470298 is an abundant number, since it is smaller than the sum of its proper divisors (31957158).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30470298 is a wasteful number, since it uses less digits than its factorization.
30470298 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 123909.
The product of its (nonzero) digits is 12096, while the sum is 33.
The square root of 30470298 is about 5519.9907608618. The cubic root of 30470298 is about 312.3385337594.
The spelling of 30470298 in words is "thirty million, four hundred seventy thousand, two hundred ninety-eight".
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