Base | Representation |
---|---|
bin | 1111100001111… |
… | …01100110010011 |
3 | 100002010200201002 |
4 | 13300331212103 |
5 | 231322310411 |
6 | 20532132215 |
7 | 3141216425 |
oct | 760754623 |
9 | 302120632 |
10 | 130275731 |
11 | 675a00a3 |
12 | 3776706b |
13 | 20cb4141 |
14 | 13432815 |
15 | b68533b |
hex | 7c3d993 |
130275731 has 2 divisors, whose sum is σ = 130275732. Its totient is φ = 130275730.
The previous prime is 130275713. The next prime is 130275751. The reversal of 130275731 is 137572031.
Together with previous prime (130275713) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 130275731 - 26 = 130275667 is a prime.
It is a super-2 number, since 2×1302757312 = 33943532175168722, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 130275694 and 130275703.
It is not a weakly prime, because it can be changed into another prime (130275751) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65137865 + 65137866.
It is an arithmetic number, because the mean of its divisors is an integer number (65137866).
Almost surely, 2130275731 is an apocalyptic number.
130275731 is a deficient number, since it is larger than the sum of its proper divisors (1).
130275731 is an equidigital number, since it uses as much as digits as its factorization.
130275731 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 4410, while the sum is 29.
The square root of 130275731 is about 11413.8394504216. The cubic root of 130275731 is about 506.9376021410.
The spelling of 130275731 in words is "one hundred thirty million, two hundred seventy-five thousand, seven hundred thirty-one".
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