Base | Representation |
---|---|
bin | 100100101010101… |
… | …0110000001111111 |
3 | 10011202002100021000 |
4 | 1021111112001333 |
5 | 10004431111111 |
6 | 322030141343 |
7 | 42326435565 |
oct | 11125260177 |
9 | 3152070230 |
10 | 1230332031 |
11 | 581543735 |
12 | 2a4051853 |
13 | 167b84626 |
14 | b9587a35 |
15 | 7302cc56 |
hex | 4955607f |
1230332031 has 32 divisors (see below), whose sum is σ = 1904670720. Its totient is φ = 783443232.
The previous prime is 1230332021. The next prime is 1230332057. The reversal of 1230332031 is 1302330321.
1230332031 is a `hidden beast` number, since 12 + 303 + 320 + 31 = 666.
It is not a de Polignac number, because 1230332031 - 227 = 1096114303 is a prime.
It is a super-2 number, since 2×12303320312 = 3027433813009169922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1230331995 and 1230332013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230332011) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 823321 + ... + 824813.
It is an arithmetic number, because the mean of its divisors is an integer number (59520960).
Almost surely, 21230332031 is an apocalyptic number.
1230332031 is a deficient number, since it is larger than the sum of its proper divisors (674338689).
1230332031 is a wasteful number, since it uses less digits than its factorization.
1230332031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2852 (or 2846 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
The square root of 1230332031 is about 35076.0891634173. The cubic root of 1230332031 is about 1071.5376706962.
Adding to 1230332031 its reverse (1302330321), we get a palindrome (2532662352).
The spelling of 1230332031 in words is "one billion, two hundred thirty million, three hundred thirty-two thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.142 sec. • engine limits •