Base | Representation |
---|---|
bin | 1111101001110… |
… | …00001011110010 |
3 | 100011001211122212 |
4 | 13310320023302 |
5 | 232103132010 |
6 | 21010132122 |
7 | 3153023021 |
oct | 764701362 |
9 | 304054585 |
10 | 131302130 |
11 | 68131263 |
12 | 37b81042 |
13 | 2128338b |
14 | 1361c8b8 |
15 | b7d9505 |
hex | 7d382f2 |
131302130 has 16 divisors (see below), whose sum is σ = 236559960. Its totient is φ = 52472832.
The previous prime is 131302117. The next prime is 131302139. The reversal of 131302130 is 31203131.
It can be written as a sum of positive squares in 4 ways, for example, as 92948881 + 38353249 = 9641^2 + 6193^2 .
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (131302139) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6776 + ... + 17564.
Almost surely, 2131302130 is an apocalyptic number.
131302130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131302130 is a deficient number, since it is larger than the sum of its proper divisors (105257830).
131302130 is a wasteful number, since it uses less digits than its factorization.
131302130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12013.
The product of its (nonzero) digits is 54, while the sum is 14.
The square root of 131302130 is about 11458.7141512475. The cubic root of 131302130 is about 508.2654517138.
Adding to 131302130 its reverse (31203131), we get a palindrome (162505261).
The spelling of 131302130 in words is "one hundred thirty-one million, three hundred two thousand, one hundred thirty".
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