Base | Representation |
---|---|
bin | 1111101001111… |
… | …11010010110111 |
3 | 100011010022121120 |
4 | 13310333102313 |
5 | 232110100010 |
6 | 21010515023 |
7 | 3153203646 |
oct | 764772267 |
9 | 304108546 |
10 | 131331255 |
11 | 68151130 |
12 | 37b95a73 |
13 | 21293703 |
14 | 1362935d |
15 | b7e2e70 |
hex | 7d3f4b7 |
131331255 has 16 divisors (see below), whose sum is σ = 229233024. Its totient is φ = 63675680.
The previous prime is 131331229. The next prime is 131331269. The reversal of 131331255 is 552133131.
It is not a de Polignac number, because 131331255 - 211 = 131329207 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397809 + ... + 398138.
It is an arithmetic number, because the mean of its divisors is an integer number (14327064).
Almost surely, 2131331255 is an apocalyptic number.
131331255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
131331255 is a deficient number, since it is larger than the sum of its proper divisors (97901769).
131331255 is a wasteful number, since it uses less digits than its factorization.
131331255 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 795966.
The product of its digits is 1350, while the sum is 24.
The square root of 131331255 is about 11459.9849476341. The cubic root of 131331255 is about 508.3030295172.
Adding to 131331255 its reverse (552133131), we get a palindrome (683464386).
The spelling of 131331255 in words is "one hundred thirty-one million, three hundred thirty-one thousand, two hundred fifty-five".
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