Base | Representation |
---|---|
bin | 11011100100001… |
… | …11011011001111 |
3 | 121010010021121011 |
4 | 31302013123033 |
5 | 433144211143 |
6 | 34540150051 |
7 | 5505343150 |
oct | 1562073317 |
9 | 533107534 |
10 | 231241423 |
11 | 109591116 |
12 | 65538327 |
13 | 38ba535a |
14 | 229d5927 |
15 | 1547ae9d |
hex | dc876cf |
231241423 has 8 divisors (see below), whose sum is σ = 268608800. Its totient is φ = 194957280.
The previous prime is 231241399. The next prime is 231241427. The reversal of 231241423 is 324142132.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 231241423 - 217 = 231110351 is a prime.
It is a super-2 number, since 2×2312414232 = 106945191422129858, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 231241394 and 231241403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231241427) 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 7 ways as a sum of consecutive naturals, for example, 270348 + ... + 271201.
It is an arithmetic number, because the mean of its divisors is an integer number (33576100).
Almost surely, 2231241423 is an apocalyptic number.
231241423 is a deficient number, since it is larger than the sum of its proper divisors (37367377).
231241423 is an equidigital number, since it uses as much as digits as its factorization.
231241423 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 541617.
The product of its digits is 1152, while the sum is 22.
The square root of 231241423 is about 15206.6243131078. The cubic root of 231241423 is about 613.7929244372.
Adding to 231241423 its reverse (324142132), we get a palindrome (555383555).
The spelling of 231241423 in words is "two hundred thirty-one million, two hundred forty-one thousand, four hundred twenty-three".
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