Base | Representation |
---|---|
bin | 1111100010110… |
… | …00101101001001 |
3 | 100002100100000022 |
4 | 13301120231021 |
5 | 231334334021 |
6 | 20534350225 |
7 | 3142161221 |
oct | 761305511 |
9 | 302310008 |
10 | 130386761 |
11 | 6766655a |
12 | 377bb375 |
13 | 2102283b |
14 | 13461081 |
15 | b6a81ab |
hex | 7c58b49 |
130386761 has 2 divisors, whose sum is σ = 130386762. Its totient is φ = 130386760.
The previous prime is 130386703. The next prime is 130386769. The reversal of 130386761 is 167683031.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 128958736 + 1428025 = 11356^2 + 1195^2 .
It is a cyclic number.
It is not a de Polignac number, because 130386761 - 210 = 130385737 is a prime.
It is a super-2 number, since 2×1303867612 = 34001414888142242, which contains 22 as substring.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (130386769) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65193380 + 65193381.
It is an arithmetic number, because the mean of its divisors is an integer number (65193381).
Almost surely, 2130386761 is an apocalyptic number.
It is an amenable number.
130386761 is a deficient number, since it is larger than the sum of its proper divisors (1).
130386761 is an equidigital number, since it uses as much as digits as its factorization.
130386761 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 18144, while the sum is 35.
The square root of 130386761 is about 11418.7022467529. The cubic root of 130386761 is about 507.0815770242.
The spelling of 130386761 in words is "one hundred thirty million, three hundred eighty-six thousand, seven hundred sixty-one".
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