Base | Representation |
---|---|
bin | 111001011110… |
… | …0000010011011 |
3 | 2002200210001012 |
4 | 1302330002123 |
5 | 30203132311 |
6 | 2553444135 |
7 | 514050350 |
oct | 162740233 |
9 | 62623035 |
10 | 30130331 |
11 | 1600a400 |
12 | a11064b |
13 | 631c3ca |
14 | 4004627 |
15 | 29a278b |
hex | 1cbc09b |
30130331 has 12 divisors (see below), whose sum is σ = 37850736. Its totient is φ = 23477520.
The previous prime is 30130283. The next prime is 30130339. The reversal of 30130331 is 13303103.
It is not a de Polignac number, because 30130331 - 214 = 30113947 is a prime.
It is a super-2 number, since 2×301303312 = 1815673692339122, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30130339) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16940 + ... + 18633.
It is an arithmetic number, because the mean of its divisors is an integer number (3154228).
Almost surely, 230130331 is an apocalyptic number.
30130331 is a deficient number, since it is larger than the sum of its proper divisors (7720405).
30130331 is a wasteful number, since it uses less digits than its factorization.
30130331 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35602 (or 35591 counting only the distinct ones).
The product of its (nonzero) digits is 81, while the sum is 14.
The square root of 30130331 is about 5489.1102193343. The cubic root of 30130331 is about 311.1725658030.
Adding to 30130331 its reverse (13303103), we get a palindrome (43433434).
The spelling of 30130331 in words is "thirty million, one hundred thirty thousand, three hundred thirty-one".
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