Base | Representation |
---|---|
bin | 111101000010010110… |
… | …0010100110010000111 |
3 | 110112022212011122001211 |
4 | 1322010230110302013 |
5 | 4121420224341410 |
6 | 140114245032251 |
7 | 12320111036122 |
oct | 1720454246207 |
9 | 415285148054 |
10 | 131075230855 |
11 | 50652606a78 |
12 | 214a09b5687 |
13 | c48b8923ca |
14 | 64b61db3b9 |
15 | 362245568a |
hex | 1e84b14c87 |
131075230855 has 4 divisors (see below), whose sum is σ = 157290277032. Its totient is φ = 104860184680.
The previous prime is 131075230841. The next prime is 131075230873. The reversal of 131075230855 is 558032570131.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 131075230855 - 221 = 131073133703 is a prime.
It is a super-3 number, since 3×1310752308553 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13107523081 + ... + 13107523090.
It is an arithmetic number, because the mean of its divisors is an integer number (39322569258).
Almost surely, 2131075230855 is an apocalyptic number.
131075230855 is a deficient number, since it is larger than the sum of its proper divisors (26215046177).
131075230855 is an equidigital number, since it uses as much as digits as its factorization.
131075230855 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26215046176.
The product of its (nonzero) digits is 126000, while the sum is 40.
The spelling of 131075230855 in words is "one hundred thirty-one billion, seventy-five million, two hundred thirty thousand, eight hundred fifty-five".
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