Base | Representation |
---|---|
bin | 1111100000110… |
… | …00011000000111 |
3 | 100001211221120102 |
4 | 13300120120013 |
5 | 231302421041 |
6 | 20524554315 |
7 | 3140013065 |
oct | 760303007 |
9 | 301757512 |
10 | 130123271 |
11 | 674a65a3 |
12 | 376b299b |
13 | 20c5c925 |
14 | 133d3035 |
15 | b65509b |
hex | 7c18607 |
130123271 has 2 divisors, whose sum is σ = 130123272. Its totient is φ = 130123270.
The previous prime is 130123247. The next prime is 130123291. The reversal of 130123271 is 172321031.
It is an a-pointer prime, because the next prime (130123291) can be obtained adding 130123271 to its sum of digits (20).
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 130123271 - 226 = 63014407 is a prime.
It is a Sophie Germain prime.
It is a zygodrome in base 2.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130123211) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65061635 + 65061636.
It is an arithmetic number, because the mean of its divisors is an integer number (65061636).
Almost surely, 2130123271 is an apocalyptic number.
130123271 is a deficient number, since it is larger than the sum of its proper divisors (1).
130123271 is an equidigital number, since it uses as much as digits as its factorization.
130123271 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 252, while the sum is 20.
The square root of 130123271 is about 11407.1587610588. The cubic root of 130123271 is about 506.7397707787.
The spelling of 130123271 in words is "one hundred thirty million, one hundred twenty-three thousand, two hundred seventy-one".
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