Base | Representation |
---|---|
bin | 11100001101111101… |
… | …011010100000000000 |
3 | 2220012120212100212221 |
4 | 130031331122200000 |
5 | 444023014133313 |
6 | 21530312100424 |
7 | 2121560013526 |
oct | 341575324000 |
9 | 86176770787 |
10 | 30298974208 |
11 | 11938a87858 |
12 | 5a57094714 |
13 | 2b1b2c4009 |
14 | 1676032316 |
15 | bc4ed3c8d |
hex | 70df5a800 |
30298974208 has 48 divisors (see below), whose sum is σ = 60620332500. Its totient is φ = 15140192256.
The previous prime is 30298974157. The next prime is 30298974221. The reversal of 30298974208 is 80247989203.
It can be written as a sum of positive squares in 2 ways, for example, as 30092534784 + 206439424 = 173472^2 + 14368^2 .
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, 4356718 + ... + 4363666.
Almost surely, 230298974208 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30298974208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30310166250).
30298974208 is an abundant number, since it is smaller than the sum of its proper divisors (30321358292).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30298974208 is an equidigital number, since it uses as much as digits as its factorization.
30298974208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9100 (or 9080 counting only the distinct ones).
The product of its (nonzero) digits is 1741824, while the sum is 52.
The spelling of 30298974208 in words is "thirty billion, two hundred ninety-eight million, nine hundred seventy-four thousand, two hundred eight".
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