Base | Representation |
---|---|
bin | 111111001100… |
… | …0011100110010 |
3 | 2022100012012210 |
4 | 1332120130302 |
5 | 31440132130 |
6 | 3142032550 |
7 | 551413524 |
oct | 176303462 |
9 | 68305183 |
10 | 33130290 |
11 | 17779306 |
12 | b118756 |
13 | 6b2ca2b |
14 | 4585a14 |
15 | 2d965b0 |
hex | 1f98732 |
33130290 has 16 divisors (see below), whose sum is σ = 79512768. Its totient is φ = 8834736.
The previous prime is 33130283. The next prime is 33130313. The reversal of 33130290 is 9203133.
It is a super-2 number, since 2×331302902 = 2195232230968200, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552142 + ... + 552201.
It is an arithmetic number, because the mean of its divisors is an integer number (4969548).
Almost surely, 233130290 is an apocalyptic number.
33130290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
33130290 is an abundant number, since it is smaller than the sum of its proper divisors (46382478).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
33130290 is a wasteful number, since it uses less digits than its factorization.
33130290 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1104353.
The product of its (nonzero) digits is 486, while the sum is 21.
The square root of 33130290 is about 5755.8917640970. The cubic root of 33130290 is about 321.1750096225.
The spelling of 33130290 in words is "thirty-three million, one hundred thirty thousand, two hundred ninety".
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