Base | Representation |
---|---|
bin | 1111100110110… |
… | …11000011100111 |
3 | 100010100110102001 |
4 | 13303123003213 |
5 | 232003430204 |
6 | 20554030131 |
7 | 3146543641 |
oct | 763330347 |
9 | 303313361 |
10 | 130920679 |
11 | 679a070a |
12 | 37a18347 |
13 | 2117b876 |
14 | 1355d891 |
15 | b7614a4 |
hex | 7cdb0e7 |
130920679 has 2 divisors, whose sum is σ = 130920680. Its totient is φ = 130920678.
The previous prime is 130920677. The next prime is 130920733. The reversal of 130920679 is 976029031.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 130920679 - 21 = 130920677 is a prime.
Together with 130920677, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130920677) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65460339 + 65460340.
It is an arithmetic number, because the mean of its divisors is an integer number (65460340).
Almost surely, 2130920679 is an apocalyptic number.
130920679 is a deficient number, since it is larger than the sum of its proper divisors (1).
130920679 is an equidigital number, since it uses as much as digits as its factorization.
130920679 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 20412, while the sum is 37.
The square root of 130920679 is about 11442.0574635858. The cubic root of 130920679 is about 507.7727803044.
The spelling of 130920679 in words is "one hundred thirty million, nine hundred twenty thousand, six hundred seventy-nine".
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