Base | Representation |
---|---|
bin | 111001010001… |
… | …0001001000101 |
3 | 2002111101112200 |
4 | 1302202021011 |
5 | 30141234021 |
6 | 2551305113 |
7 | 513126201 |
oct | 162421105 |
9 | 62441480 |
10 | 30024261 |
11 | 15a47743 |
12 | a07b199 |
13 | 62b3047 |
14 | 3db7b01 |
15 | 2981126 |
hex | 1ca2245 |
30024261 has 24 divisors (see below), whose sum is σ = 46686744. Its totient is φ = 18524160.
The previous prime is 30024233. The next prime is 30024263. The reversal of 30024261 is 16242003.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 6200100 + 23824161 = 2490^2 + 4881^2 .
It is not a de Polignac number, because 30024261 - 27 = 30024133 is a prime.
It is a super-2 number, since 2×300242612 = 1802912497192242, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30024263) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7725 + ... + 10941.
It is an arithmetic number, because the mean of its divisors is an integer number (1945281).
Almost surely, 230024261 is an apocalyptic number.
It is an amenable number.
30024261 is a deficient number, since it is larger than the sum of its proper divisors (16662483).
30024261 is a wasteful number, since it uses less digits than its factorization.
30024261 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3301 (or 3298 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 30024261 is about 5479.4398436337. The cubic root of 30024261 is about 310.8069886574.
Adding to 30024261 its reverse (16242003), we get a palindrome (46266264).
The spelling of 30024261 in words is "thirty million, twenty-four thousand, two hundred sixty-one".
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