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231183023 = 1072160589
BaseRepresentation
bin11011100011110…
…01001010101111
3121010000022111012
431301321022233
5433140324043
634535015435
75505010661
oct1561711257
9533008435
10231183023
11109551255
126550a57b
1338b848b6
14229bc531
1515468a18
hexdc792af

231183023 has 4 divisors (see below), whose sum is σ = 233343720. Its totient is φ = 229022328.

The previous prime is 231182981. The next prime is 231183059. The reversal of 231183023 is 320381132.

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 231183023 - 216 = 231117487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231183023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231143023) 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, 1080188 + ... + 1080401.

It is an arithmetic number, because the mean of its divisors is an integer number (58335930).

Almost surely, 2231183023 is an apocalyptic number.

231183023 is a deficient number, since it is larger than the sum of its proper divisors (2160697).

231183023 is a wasteful number, since it uses less digits than its factorization.

231183023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160696.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 231183023 is about 15204.7039760727. The cubic root of 231183023 is about 613.7412489713.

The spelling of 231183023 in words is "two hundred thirty-one million, one hundred eighty-three thousand, twenty-three".

Divisors: 1 107 2160589 231183023