Base | Representation |
---|---|
bin | 1111100001000… |
… | …10001011100111 |
3 | 100001220222122211 |
4 | 13300202023213 |
5 | 231310212211 |
6 | 20525504251 |
7 | 3140241136 |
oct | 760421347 |
9 | 301828584 |
10 | 130163431 |
11 | 67523792 |
12 | 37712087 |
13 | 20c74ca8 |
14 | 1340391d |
15 | b661e21 |
hex | 7c222e7 |
130163431 has 2 divisors, whose sum is σ = 130163432. Its totient is φ = 130163430.
The previous prime is 130163419. The next prime is 130163437. The reversal of 130163431 is 134361031.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 130163431 - 25 = 130163399 is a prime.
It is a super-2 number, since 2×1301634312 = 33885037539383522, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130163437) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65081715 + 65081716.
It is an arithmetic number, because the mean of its divisors is an integer number (65081716).
Almost surely, 2130163431 is an apocalyptic number.
130163431 is a deficient number, since it is larger than the sum of its proper divisors (1).
130163431 is an equidigital number, since it uses as much as digits as its factorization.
130163431 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 648, while the sum is 22.
The square root of 130163431 is about 11408.9189233687. The cubic root of 130163431 is about 506.7918971861.
The spelling of 130163431 in words is "one hundred thirty million, one hundred sixty-three thousand, four hundred thirty-one".
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