Base | Representation |
---|---|
bin | 111101000011000111… |
… | …1110010100100011001 |
3 | 110112101200020100020002 |
4 | 1322012033302210121 |
5 | 4121443413230423 |
6 | 140121015542345 |
7 | 12320545464302 |
oct | 1720617624431 |
9 | 415350210202 |
10 | 131101305113 |
11 | 506662a5a49 |
12 | 214a968a9b5 |
13 | c4940c156c |
14 | 64b98677a9 |
15 | 36248a6228 |
hex | 1e863f2919 |
131101305113 has 4 divisors (see below), whose sum is σ = 131281637760. Its totient is φ = 130920972468.
The previous prime is 131101305079. The next prime is 131101305131. The reversal of 131101305113 is 311503101131.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311503101131 = 267479 ⋅1164589.
It is a cyclic number.
It is not a de Polignac number, because 131101305113 - 28 = 131101304857 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131101305163) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 90165233 + ... + 90166686.
It is an arithmetic number, because the mean of its divisors is an integer number (32820409440).
Almost surely, 2131101305113 is an apocalyptic number.
It is an amenable number.
131101305113 is a deficient number, since it is larger than the sum of its proper divisors (180332647).
131101305113 is an equidigital number, since it uses as much as digits as its factorization.
131101305113 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 180332646.
The product of its (nonzero) digits is 135, while the sum is 20.
Adding to 131101305113 its reverse (311503101131), we get a palindrome (442604406244).
The spelling of 131101305113 in words is "one hundred thirty-one billion, one hundred one million, three hundred five thousand, one hundred thirteen".
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