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231433243 = 1912795911
BaseRepresentation
bin11011100101101…
…10010000011011
3121010111000201121
431302312100123
5433221330433
634544230111
75510102326
oct1562662033
9533430647
10231433243
11109702248
126560b337
1338c41762
1422a457bd
15154b7c2d
hexdcb641b

231433243 has 8 divisors (see below), whose sum is σ = 245534720. Its totient is φ = 217523880.

The previous prime is 231433231. The next prime is 231433247. The reversal of 231433243 is 342334132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231433243 - 25 = 231433211 is a prime.

It is a super-2 number, since 2×2314332432 = 107122691930994098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231433247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45543 + ... + 50368.

It is an arithmetic number, because the mean of its divisors is an integer number (30691840).

Almost surely, 2231433243 is an apocalyptic number.

231433243 is a deficient number, since it is larger than the sum of its proper divisors (14101477).

231433243 is a wasteful number, since it uses less digits than its factorization.

231433243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96057.

The product of its digits is 5184, while the sum is 25.

The square root of 231433243 is about 15212.9301253900. The cubic root of 231433243 is about 613.9625959099.

Adding to 231433243 its reverse (342334132), we get a palindrome (573767375).

The spelling of 231433243 in words is "two hundred thirty-one million, four hundred thirty-three thousand, two hundred forty-three".

Divisors: 1 19 127 2413 95911 1822309 12180697 231433243