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231426231 = 3372084921
BaseRepresentation
bin11011100101101…
…00100010110111
3121010110200002220
431302310202313
5433221114411
634544133423
75510043021
oct1562644267
9533420086
10231426231
111096a7a53
1265607273
1338c3b4ca
1422a43011
15154b5b06
hexdcb48b7

231426231 has 8 divisors (see below), whose sum is σ = 316908144. Its totient is φ = 150114240.

The previous prime is 231426227. The next prime is 231426233. The reversal of 231426231 is 132624132.

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

It is not a de Polignac number, because 231426231 - 22 = 231426227 is a prime.

It is a super-2 number, since 2×2314262312 = 107116200789730722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231426233) 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, 1042350 + ... + 1042571.

It is an arithmetic number, because the mean of its divisors is an integer number (39613518).

Almost surely, 2231426231 is an apocalyptic number.

231426231 is a deficient number, since it is larger than the sum of its proper divisors (85481913).

231426231 is a wasteful number, since it uses less digits than its factorization.

231426231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084961.

The product of its digits is 1728, while the sum is 24.

The square root of 231426231 is about 15212.6996617957. The cubic root of 231426231 is about 613.9563952029.

The spelling of 231426231 in words is "two hundred thirty-one million, four hundred twenty-six thousand, two hundred thirty-one".

Divisors: 1 3 37 111 2084921 6254763 77142077 231426231