Base | Representation |
---|---|
bin | 1111101011000… |
… | …10011101000111 |
3 | 100011101122011111 |
4 | 13311202131013 |
5 | 232124202041 |
6 | 21013545451 |
7 | 3154343554 |
oct | 765423507 |
9 | 304348144 |
10 | 131475271 |
11 | 6823a354 |
12 | 38045287 |
13 | 21314125 |
14 | 13665a2b |
15 | b820981 |
hex | 7d62747 |
131475271 has 2 divisors, whose sum is σ = 131475272. Its totient is φ = 131475270.
The previous prime is 131475217. The next prime is 131475283. The reversal of 131475271 is 172574131.
Together with previous prime (131475217) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-131475271 is a prime.
It is a super-3 number, since 3×1314752713 (a number of 25 digits) contains 333 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131475571) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65737635 + 65737636.
It is an arithmetic number, because the mean of its divisors is an integer number (65737636).
Almost surely, 2131475271 is an apocalyptic number.
131475271 is a deficient number, since it is larger than the sum of its proper divisors (1).
131475271 is an equidigital number, since it uses as much as digits as its factorization.
131475271 is an evil number, because the sum of its binary digits is even.
The product of its digits is 5880, while the sum is 31.
The square root of 131475271 is about 11466.2666548445. The cubic root of 131475271 is about 508.4887609521.
The spelling of 131475271 in words is "one hundred thirty-one million, four hundred seventy-five thousand, two hundred seventy-one".
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