Base | Representation |
---|---|
bin | 1111100011010… |
… | …10111100101001 |
3 | 100002111010111201 |
4 | 13301222330221 |
5 | 231344231411 |
6 | 20540124201 |
7 | 3142622113 |
oct | 761527451 |
9 | 302433451 |
10 | 130461481 |
11 | 67707707 |
12 | 37836661 |
13 | 2104a857 |
14 | 134803b3 |
15 | b6c03c1 |
hex | 7c6af29 |
130461481 has 2 divisors, whose sum is σ = 130461482. Its totient is φ = 130461480.
The previous prime is 130461479. The next prime is 130461521. The reversal of 130461481 is 184164031.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 79923600 + 50537881 = 8940^2 + 7109^2 .
It is a cyclic number.
It is not a de Polignac number, because 130461481 - 21 = 130461479 is a prime.
It is a super-2 number, since 2×1304614812 = 34040396049426722, which contains 22 as substring.
Together with 130461479, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (130461421) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65230740 + 65230741.
It is an arithmetic number, because the mean of its divisors is an integer number (65230741).
Almost surely, 2130461481 is an apocalyptic number.
It is an amenable number.
130461481 is a deficient number, since it is larger than the sum of its proper divisors (1).
130461481 is an equidigital number, since it uses as much as digits as its factorization.
130461481 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2304, while the sum is 28.
The square root of 130461481 is about 11421.9736035416. The cubic root of 130461481 is about 507.1784219795.
The spelling of 130461481 in words is "one hundred thirty million, four hundred sixty-one thousand, four hundred eighty-one".
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