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231341223 = 3743103787
BaseRepresentation
bin11011100100111…
…11110010100111
3121010022100111110
431302133302213
5433210404343
634542240103
75506240131
oct1562376247
9533270443
10231341223
1110964a0a3
1265586033
1338c0b8c9
1422a20051
151549a833
hexdc9fca7

231341223 has 8 divisors (see below), whose sum is σ = 308873088. Its totient is φ = 154018424.

The previous prime is 231341179. The next prime is 231341233. The reversal of 231341223 is 322143132.

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 231341223 - 214 = 231324839 is a prime.

It is a super-2 number, since 2×2313412232 = 107037522918271458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231341223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231341233) 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, 49665 + ... + 54122.

It is an arithmetic number, because the mean of its divisors is an integer number (38609136).

Almost surely, 2231341223 is an apocalyptic number.

231341223 is a deficient number, since it is larger than the sum of its proper divisors (77531865).

231341223 is a wasteful number, since it uses less digits than its factorization.

231341223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104533.

The product of its digits is 864, while the sum is 21.

The square root of 231341223 is about 15209.9054237691. The cubic root of 231341223 is about 613.8812127187.

Adding to 231341223 its reverse (322143132), we get a palindrome (553484355).

The spelling of 231341223 in words is "two hundred thirty-one million, three hundred forty-one thousand, two hundred twenty-three".

Divisors: 1 3 743 2229 103787 311361 77113741 231341223