Base | Representation |
---|---|
bin | 1111100000110… |
… | …01111011011111 |
3 | 100001212021021222 |
4 | 13300121323133 |
5 | 231303122011 |
6 | 20525043555 |
7 | 3140040452 |
oct | 760317337 |
9 | 301767258 |
10 | 130129631 |
11 | 67500355 |
12 | 376b65bb |
13 | 20c627a8 |
14 | 133d5499 |
15 | b656ddb |
hex | 7c19edf |
130129631 has 2 divisors, whose sum is σ = 130129632. Its totient is φ = 130129630.
The previous prime is 130129603. The next prime is 130129639. The reversal of 130129631 is 136921031.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 130129631 - 218 = 129867487 is a prime.
It is a super-2 number, since 2×1301296312 = 33867441728392322, which contains 22 as substring.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 130129631.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130129639) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65064815 + 65064816.
It is an arithmetic number, because the mean of its divisors is an integer number (65064816).
Almost surely, 2130129631 is an apocalyptic number.
130129631 is a deficient number, since it is larger than the sum of its proper divisors (1).
130129631 is an equidigital number, since it uses as much as digits as its factorization.
130129631 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 972, while the sum is 26.
The square root of 130129631 is about 11407.4375299626. The cubic root of 130129631 is about 506.7480265718.
The spelling of 130129631 in words is "one hundred thirty million, one hundred twenty-nine thousand, six hundred thirty-one".
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