Base | Representation |
---|---|
bin | 11011100010011… |
… | …11101101100111 |
3 | 121002200200120022 |
4 | 31301033231213 |
5 | 433114410343 |
6 | 34531225355 |
7 | 5503402640 |
oct | 1561175547 |
9 | 532620508 |
10 | 231013223 |
11 | 109445721 |
12 | 6544825b |
13 | 38b2551c |
14 | 229766c7 |
15 | 15433568 |
hex | dc4fb67 |
231013223 has 8 divisors (see below), whose sum is σ = 264107040. Its totient is φ = 197942400.
The previous prime is 231013199. The next prime is 231013247. The reversal of 231013223 is 322310132.
It is an interprime number because it is at equal distance from previous prime (231013199) and next prime (231013247).
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 231013223 - 28 = 231012967 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231010223) 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, 36923 + ... + 42723.
It is an arithmetic number, because the mean of its divisors is an integer number (33013380).
Almost surely, 2231013223 is an apocalyptic number.
231013223 is a deficient number, since it is larger than the sum of its proper divisors (33093817).
231013223 is an equidigital number, since it uses as much as digits as its factorization.
231013223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11497.
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 231013223 is about 15199.1191521088. The cubic root of 231013223 is about 613.5909513306.
Adding to 231013223 its reverse (322310132), we get a palindrome (553323355).
The spelling of 231013223 in words is "two hundred thirty-one million, thirteen thousand, two hundred twenty-three".
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