Base | Representation |
---|---|
bin | 1111100000110… |
… | …00110100001111 |
3 | 100001212001001002 |
4 | 13300120310033 |
5 | 231303000241 |
6 | 20525010515 |
7 | 3140021246 |
oct | 760306417 |
9 | 301761032 |
10 | 130125071 |
11 | 674a798a |
12 | 376b3a3b |
13 | 20c606ab |
14 | 133d395d |
15 | b65589b |
hex | 7c18d0f |
130125071 has 2 divisors, whose sum is σ = 130125072. Its totient is φ = 130125070.
The previous prime is 130125049. The next prime is 130125097. The reversal of 130125071 is 170521031.
It is a weak prime.
It is an emirp because it is prime and its reverse (170521031) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 130125071 - 210 = 130124047 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130125271) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65062535 + 65062536.
It is an arithmetic number, because the mean of its divisors is an integer number (65062536).
Almost surely, 2130125071 is an apocalyptic number.
130125071 is a deficient number, since it is larger than the sum of its proper divisors (1).
130125071 is an equidigital number, since it uses as much as digits as its factorization.
130125071 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 210, while the sum is 20.
The square root of 130125071 is about 11407.2376586096. The cubic root of 130125071 is about 506.7421073512.
The spelling of 130125071 in words is "one hundred thirty million, one hundred twenty-five thousand, seventy-one".
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