Base | Representation |
---|---|
bin | 1111101001100… |
… | …00001010000101 |
3 | 100011000011120012 |
4 | 13310300022011 |
5 | 232101104003 |
6 | 21005320005 |
7 | 3152525123 |
oct | 764601205 |
9 | 304004505 |
10 | 131269253 |
11 | 68109595 |
12 | 37b66005 |
13 | 2127141b |
14 | 13610913 |
15 | b7ce8d8 |
hex | 7d30285 |
131269253 has 2 divisors, whose sum is σ = 131269254. Its totient is φ = 131269252.
The previous prime is 131269207. The next prime is 131269319. The reversal of 131269253 is 352962131.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 122257249 + 9012004 = 11057^2 + 3002^2 .
It is a cyclic number.
It is not a de Polignac number, because 131269253 - 226 = 64160389 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131239253) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65634626 + 65634627.
It is an arithmetic number, because the mean of its divisors is an integer number (65634627).
Almost surely, 2131269253 is an apocalyptic number.
It is an amenable number.
131269253 is a deficient number, since it is larger than the sum of its proper divisors (1).
131269253 is an equidigital number, since it uses as much as digits as its factorization.
131269253 is an evil number, because the sum of its binary digits is even.
The product of its digits is 9720, while the sum is 32.
The square root of 131269253 is about 11457.2794763853. The cubic root of 131269253 is about 508.2230263088.
The spelling of 131269253 in words is "one hundred thirty-one million, two hundred sixty-nine thousand, two hundred fifty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •