Base | Representation |
---|---|
bin | 111001111101… |
… | …1101000010010 |
3 | 2010012000100021 |
4 | 1303323220102 |
5 | 30240001202 |
6 | 3003214054 |
7 | 516213631 |
oct | 163735022 |
9 | 63160307 |
10 | 30390802 |
11 | 16178072 |
12 | a21732a |
13 | 63b0b30 |
14 | 4071518 |
15 | 2a04a37 |
hex | 1cfba12 |
30390802 has 8 divisors (see below), whose sum is σ = 49092876. Its totient is φ = 14026512.
The previous prime is 30390793. The next prime is 30390803. The reversal of 30390802 is 20809303.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 23415921 + 6974881 = 4839^2 + 2641^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (30390803) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584413 + ... + 584464.
Almost surely, 230390802 is an apocalyptic number.
30390802 is a deficient number, since it is larger than the sum of its proper divisors (18702074).
30390802 is a wasteful number, since it uses less digits than its factorization.
30390802 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1168892.
The product of its (nonzero) digits is 1296, while the sum is 25.
The square root of 30390802 is about 5512.7853214142. The cubic root of 30390802 is about 312.0666702254.
The spelling of 30390802 in words is "thirty million, three hundred ninety thousand, eight hundred two".
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