Base | Representation |
---|---|
bin | 1111101010100… |
… | …11100100111011 |
3 | 100011021112120110 |
4 | 13311103210323 |
5 | 232120224311 |
6 | 21012355403 |
7 | 3154001106 |
oct | 765234473 |
9 | 304245513 |
10 | 131414331 |
11 | 681a8594 |
12 | 38015b63 |
13 | 212c2479 |
14 | 1364b73d |
15 | b80c8a6 |
hex | 7d5393b |
131414331 has 4 divisors (see below), whose sum is σ = 175219112. Its totient is φ = 87609552.
The previous prime is 131414329. The next prime is 131414347. The reversal of 131414331 is 133414131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133414131 = 3 ⋅44471377.
It is not a de Polignac number, because 131414331 - 21 = 131414329 is a prime.
It is a super-2 number, since 2×1314143312 = 34539452784355122, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 131414298 and 131414307.
It is not an unprimeable number, because it can be changed into a prime (131414351) by changing a digit.
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, 21902386 + ... + 21902391.
It is an arithmetic number, because the mean of its divisors is an integer number (43804778).
Almost surely, 2131414331 is an apocalyptic number.
131414331 is a deficient number, since it is larger than the sum of its proper divisors (43804781).
131414331 is an equidigital number, since it uses as much as digits as its factorization.
131414331 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43804780.
The product of its digits is 432, while the sum is 21.
The square root of 131414331 is about 11463.6089867022. The cubic root of 131414331 is about 508.4101857348.
Adding to 131414331 its reverse (133414131), we get a palindrome (264828462).
The spelling of 131414331 in words is "one hundred thirty-one million, four hundred fourteen thousand, three hundred thirty-one".
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