Base | Representation |
---|---|
bin | 10101100010110101… |
… | …111001000111011110 |
3 | 2012201012001211022011 |
4 | 111202311321013132 |
5 | 334334040144410 |
6 | 14343251141434 |
7 | 1446155241166 |
oct | 254265710736 |
9 | 65635054264 |
10 | 23133131230 |
11 | 98a105a980 |
12 | 45972a487a |
13 | 2248832c41 |
14 | 11964655a6 |
15 | 905d5b18a |
hex | 562d791de |
23133131230 has 64 divisors (see below), whose sum is σ = 46455379200. Its totient is φ = 8222859520.
The previous prime is 23133131227. The next prime is 23133131239. The reversal of 23133131230 is 3213133132.
It is a Harshad number since it is a multiple of its sum of digits (22).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23133131239) 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, 1151754 + ... + 1171666.
It is an arithmetic number, because the mean of its divisors is an integer number (725865300).
Almost surely, 223133131230 is an apocalyptic number.
23133131230 is an abundant number, since it is smaller than the sum of its proper divisors (23322247970).
23133131230 is a wasteful number, since it uses less digits than its factorization.
23133131230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20169.
The product of its (nonzero) digits is 972, while the sum is 22.
Adding to 23133131230 its reverse (3213133132), we get a palindrome (26346264362).
The spelling of 23133131230 in words is "twenty-three billion, one hundred thirty-three million, one hundred thirty-one thousand, two hundred thirty".
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