Base | Representation |
---|---|
bin | 11011011010110… |
… | …11000101011111 |
3 | 121000210210002111 |
4 | 31231123011133 |
5 | 432340324411 |
6 | 34453534451 |
7 | 5462030452 |
oct | 1555330537 |
9 | 530723074 |
10 | 230011231 |
11 | 10892092a |
12 | 65044427 |
13 | 38864428 |
14 | 22795499 |
15 | 152d6721 |
hex | db5b15f |
230011231 has 2 divisors, whose sum is σ = 230011232. Its totient is φ = 230011230.
The previous prime is 230011219. The next prime is 230011259. The reversal of 230011231 is 132110032.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 230011231 - 29 = 230010719 is a prime.
It is a super-2 number, since 2×2300112312 = 105810332772270722, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (230011261) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115005615 + 115005616.
It is an arithmetic number, because the mean of its divisors is an integer number (115005616).
Almost surely, 2230011231 is an apocalyptic number.
230011231 is a deficient number, since it is larger than the sum of its proper divisors (1).
230011231 is an equidigital number, since it uses as much as digits as its factorization.
230011231 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 36, while the sum is 13.
The square root of 230011231 is about 15166.1211586879. The cubic root of 230011231 is about 612.7025400420.
Adding to 230011231 its reverse (132110032), we get a palindrome (362121263).
It can be divided in two parts, 2300 and 11231, that added together give a palindrome (13531).
The spelling of 230011231 in words is "two hundred thirty million, eleven thousand, two hundred thirty-one".
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