Base | Representation |
---|---|
bin | 111001010111… |
… | …1110011100111 |
3 | 2002121020022122 |
4 | 1302233303213 |
5 | 30200031411 |
6 | 2552420155 |
7 | 513451316 |
oct | 162576347 |
9 | 62536278 |
10 | 30080231 |
11 | 15a857a5 |
12 | a0a765b |
13 | 630266c |
14 | 3dd027d |
15 | 29929db |
hex | 1cafce7 |
30080231 has 4 divisors (see below), whose sum is σ = 30177264. Its totient is φ = 29983510.
The previous prime is 30080227. The next prime is 30080233. The reversal of 30080231 is 13208003.
The cubic root of 30080231 is 311.
It is a perfect power (a cube), and thus also a powerful number.
It is not a de Polignac number, because 30080231 - 22 = 30080227 is a prime.
It is a super-2 number, since 2×300802312 = 1809640594026722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30080233) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96566 + ... + 96876.
It is an arithmetic number, because the mean of its divisors is an integer number (7544316).
Almost surely, 230080231 is an apocalyptic number.
30080231 is a deficient number, since it is larger than the sum of its proper divisors (97033).
30080231 is an frugal number, since it uses more digits than its factorization.
30080231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 933 (or 311 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 17.
The square root of 30080231 is about 5484.5447395386.
Adding to 30080231 its reverse (13208003), we get a palindrome (43288234).
The spelling of 30080231 in words is "thirty million, eighty thousand, two hundred thirty-one".
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