Base | Representation |
---|---|
bin | 1111100111001… |
… | …10100000011101 |
3 | 100010102211202011 |
4 | 13303212200131 |
5 | 232011430311 |
6 | 20555031221 |
7 | 3150130453 |
oct | 763464035 |
9 | 303384664 |
10 | 130967581 |
11 | 67a22978 |
12 | 37a3b511 |
13 | 21197014 |
14 | 135729d3 |
15 | b770321 |
hex | 7ce681d |
130967581 has 2 divisors, whose sum is σ = 130967582. Its totient is φ = 130967580.
The previous prime is 130967561. The next prime is 130967593. The reversal of 130967581 is 185769031.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 126765081 + 4202500 = 11259^2 + 2050^2 .
It is a cyclic number.
It is not a de Polignac number, because 130967581 - 217 = 130836509 is a prime.
It is a super-2 number, since 2×1309675812 = 34305014545983122, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130967561) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65483790 + 65483791.
It is an arithmetic number, because the mean of its divisors is an integer number (65483791).
Almost surely, 2130967581 is an apocalyptic number.
It is an amenable number.
130967581 is a deficient number, since it is larger than the sum of its proper divisors (1).
130967581 is an equidigital number, since it uses as much as digits as its factorization.
130967581 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 45360, while the sum is 40.
The square root of 130967581 is about 11444.1068240383. The cubic root of 130967581 is about 507.8334091670.
The spelling of 130967581 in words is "one hundred thirty million, nine hundred sixty-seven thousand, five hundred eighty-one".
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