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231114131 = 733165947
BaseRepresentation
bin11011100011010…
…00010110010011
3121002212210222122
431301220112103
5433131123011
634533324455
75504303063
oct1561502623
9532783878
10231114131
11109504516
126549672b
1338b5c431
14229a13a3
15154533db
hexdc68593

231114131 has 4 divisors (see below), whose sum is σ = 234280152. Its totient is φ = 227948112.

The previous prime is 231114127. The next prime is 231114179. The reversal of 231114131 is 131411132.

231114131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231114131 - 22 = 231114127 is a prime.

It is a super-2 number, since 2×2311141312 = 106827483095770322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231114101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1582901 + ... + 1583046.

It is an arithmetic number, because the mean of its divisors is an integer number (58570038).

Almost surely, 2231114131 is an apocalyptic number.

231114131 is a deficient number, since it is larger than the sum of its proper divisors (3166021).

231114131 is an equidigital number, since it uses as much as digits as its factorization.

231114131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166020.

The product of its digits is 72, while the sum is 17.

The square root of 231114131 is about 15202.4383241637. The cubic root of 231114131 is about 613.6802784291.

Adding to 231114131 its reverse (131411132), we get a palindrome (362525263).

The spelling of 231114131 in words is "two hundred thirty-one million, one hundred fourteen thousand, one hundred thirty-one".

Divisors: 1 73 3165947 231114131