Base | Representation |
---|---|
bin | 10110110001000111… |
… | …00010111001011110 |
3 | 1011112211222101212002 |
4 | 23120203202321132 |
5 | 200013110144410 |
6 | 5340520042302 |
7 | 611620621052 |
oct | 133043427136 |
9 | 34484871762 |
10 | 12223131230 |
11 | 5202703452 |
12 | 2451603392 |
13 | 11ca45a53b |
14 | 83d501c62 |
15 | 4b81487a5 |
hex | 2d88e2e5e |
12223131230 has 16 divisors (see below), whose sum is σ = 22112200800. Its totient is φ = 4864682592.
The previous prime is 12223131181. The next prime is 12223131233. The reversal of 12223131230 is 3213132221.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12223131233) 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, 3069149 + ... + 3073128.
It is an arithmetic number, because the mean of its divisors is an integer number (1382012550).
Almost surely, 212223131230 is an apocalyptic number.
12223131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12223131230 is a deficient number, since it is larger than the sum of its proper divisors (9889069570).
12223131230 is a wasteful number, since it uses less digits than its factorization.
12223131230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6142483.
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 12223131230 its reverse (3213132221), we get a palindrome (15436263451).
Subtracting from 12223131230 its reverse (3213132221), we obtain a palindrome (9009999009).
The spelling of 12223131230 in words is "twelve billion, two hundred twenty-three million, one hundred thirty-one thousand, two hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.083 sec. • engine limits •