Base | Representation |
---|---|
bin | 100100101010000… |
… | …1100110101100111 |
3 | 10011201112010000022 |
4 | 1021110030311213 |
5 | 10004342012411 |
6 | 322015505355 |
7 | 42324046541 |
oct | 11124146547 |
9 | 3151463008 |
10 | 1230032231 |
11 | 58135946a |
12 | 2a3b2825b |
13 | 167aab02c |
14 | b950a691 |
15 | 72ebdedb |
hex | 4950cd67 |
1230032231 has 4 divisors (see below), whose sum is σ = 1231357200. Its totient is φ = 1228707264.
The previous prime is 1230032213. The next prime is 1230032257. The reversal of 1230032231 is 1322300321.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 1230032231 - 214 = 1230015847 is a prime.
It is a super-2 number, since 2×12300322312 = 3025958578597674722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230032201) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661091 + ... + 662948.
It is an arithmetic number, because the mean of its divisors is an integer number (307839300).
Almost surely, 21230032231 is an apocalyptic number.
1230032231 is a deficient number, since it is larger than the sum of its proper divisors (1324969).
1230032231 is an equidigital number, since it uses as much as digits as its factorization.
1230032231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1324968.
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 1230032231 is about 35071.8153365348. The cubic root of 1230032231 is about 1071.4506283146.
Adding to 1230032231 its reverse (1322300321), we get a palindrome (2552332552).
The spelling of 1230032231 in words is "one billion, two hundred thirty million, thirty-two thousand, two hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •