Base | Representation |
---|---|
bin | 11111100110010… |
… | …010011001100011 |
3 | 1100221112102101010 |
4 | 133212102121203 |
5 | 2041203134111 |
6 | 124334312003 |
7 | 16065015030 |
oct | 3746223143 |
9 | 1327472333 |
10 | 530130531 |
11 | 252276a07 |
12 | 129658603 |
13 | 85aa4608 |
14 | 5059a387 |
15 | 3181aaa6 |
hex | 1f992663 |
530130531 has 32 divisors (see below), whose sum is σ = 844259328. Its totient is φ = 289568160.
The previous prime is 530130529. The next prime is 530130551. The reversal of 530130531 is 135031035.
It is a happy number.
It is not a de Polignac number, because 530130531 - 21 = 530130529 is a prime.
It is a super-2 number, since 2×5301305312 = 562076759796683922, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 530130498 and 530130507.
It is not an unprimeable number, because it can be changed into a prime (530130521) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36196 + ... + 48686.
It is an arithmetic number, because the mean of its divisors is an integer number (26383104).
Almost surely, 2530130531 is an apocalyptic number.
530130531 is a deficient number, since it is larger than the sum of its proper divisors (314128797).
530130531 is a wasteful number, since it uses less digits than its factorization.
530130531 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12591.
The product of its (nonzero) digits is 675, while the sum is 21.
The square root of 530130531 is about 23024.5636440737. The cubic root of 530130531 is about 809.3336647713. Note that the first 3 decimals are identical.
Adding to 530130531 its reverse (135031035), we get a palindrome (665161566).
The spelling of 530130531 in words is "five hundred thirty million, one hundred thirty thousand, five hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •