Base | Representation |
---|---|
bin | 11111101010000… |
… | …110011101100010 |
3 | 1101000102012200021 |
4 | 133222012131202 |
5 | 2041432131320 |
6 | 124411544054 |
7 | 16106350402 |
oct | 3752063542 |
9 | 1330365607 |
10 | 531130210 |
11 | 252899a96 |
12 | 129a5b02a |
13 | 86064640 |
14 | 5077a802 |
15 | 31966daa |
hex | 1fa86762 |
531130210 has 32 divisors (see below), whose sum is σ = 1034958960. Its totient is φ = 195084288.
The previous prime is 531130181. The next prime is 531130219. The reversal of 531130210 is 12031135.
It can be written as a sum of positive squares in 8 ways, for example, as 217238121 + 313892089 = 14739^2 + 17717^2 .
It is not an unprimeable number, because it can be changed into a prime (531130219) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14506 + ... + 35674.
Almost surely, 2531130210 is an apocalyptic number.
531130210 is a deficient number, since it is larger than the sum of its proper divisors (503828750).
531130210 is a wasteful number, since it uses less digits than its factorization.
531130210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21382.
The product of its (nonzero) digits is 90, while the sum is 16.
The square root of 531130210 is about 23046.2623867733. The cubic root of 531130210 is about 809.8420715319.
Adding to 531130210 its reverse (12031135), we get a palindrome (543161345).
The spelling of 531130210 in words is "five hundred thirty-one million, one hundred thirty thousand, two hundred ten".
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