Base | Representation |
---|---|
bin | 111001011110… |
… | …0111111010111 |
3 | 2002200222101122 |
4 | 1302330333113 |
5 | 30203243411 |
6 | 2553514155 |
7 | 514064621 |
oct | 162747727 |
9 | 62628348 |
10 | 30134231 |
11 | 16012326 |
12 | a11295b |
13 | 632110a |
14 | 4005c11 |
15 | 29a39db |
hex | 1cbcfd7 |
30134231 has 2 divisors, whose sum is σ = 30134232. Its totient is φ = 30134230.
The previous prime is 30134197. The next prime is 30134239. The reversal of 30134231 is 13243103.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30134231 - 214 = 30117847 is a prime.
It is a super-2 number, since 2×301342312 = 1816143755922722, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30134239) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15067115 + 15067116.
It is an arithmetic number, because the mean of its divisors is an integer number (15067116).
Almost surely, 230134231 is an apocalyptic number.
30134231 is a deficient number, since it is larger than the sum of its proper divisors (1).
30134231 is an equidigital number, since it uses as much as digits as its factorization.
30134231 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 30134231 is about 5489.4654566724. The cubic root of 30134231 is about 311.1859910416.
Adding to 30134231 its reverse (13243103), we get a palindrome (43377334).
The spelling of 30134231 in words is "thirty million, one hundred thirty-four thousand, two hundred thirty-one".
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