Base | Representation |
---|---|
bin | 1111100110110… |
… | …11000011100101 |
3 | 100010100110101222 |
4 | 13303123003211 |
5 | 232003430202 |
6 | 20554030125 |
7 | 3146543636 |
oct | 763330345 |
9 | 303313358 |
10 | 130920677 |
11 | 679a0708 |
12 | 37a18345 |
13 | 2117b874 |
14 | 1355d88d |
15 | b7614a2 |
hex | 7cdb0e5 |
130920677 has 2 divisors, whose sum is σ = 130920678. Its totient is φ = 130920676.
The previous prime is 130920649. The next prime is 130920679. The reversal of 130920677 is 776029031.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 112550881 + 18369796 = 10609^2 + 4286^2 .
It is an emirp because it is prime and its reverse (776029031) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 130920677 - 222 = 126726373 is a prime.
It is a super-2 number, since 2×1309206772 = 34280447332276658, which contains 22 as substring.
Together with 130920679, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130920679) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65460338 + 65460339.
It is an arithmetic number, because the mean of its divisors is an integer number (65460339).
Almost surely, 2130920677 is an apocalyptic number.
It is an amenable number.
130920677 is a deficient number, since it is larger than the sum of its proper divisors (1).
130920677 is an equidigital number, since it uses as much as digits as its factorization.
130920677 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 15876, while the sum is 35.
The square root of 130920677 is about 11442.0573761890. The cubic root of 130920677 is about 507.7727777188.
The spelling of 130920677 in words is "one hundred thirty million, nine hundred twenty thousand, six hundred seventy-seven".
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