Base | Representation |
---|---|
bin | 1110101100000… |
… | …00100111110110 |
3 | 22120211201122212 |
4 | 13112000213312 |
5 | 223020211410 |
6 | 20120453422 |
7 | 3024161333 |
oct | 726004766 |
9 | 276751585 |
10 | 123210230 |
11 | 63604740 |
12 | 3531a272 |
13 | 1c6ac180 |
14 | 1251398a |
15 | ac3bb05 |
hex | 75809f6 |
123210230 has 32 divisors (see below), whose sum is σ = 260553888. Its totient is φ = 41356800.
The previous prime is 123210229. The next prime is 123210239. The reversal of 123210230 is 32012321.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123210239) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41651 + ... + 44510.
It is an arithmetic number, because the mean of its divisors is an integer number (8142309).
Almost surely, 2123210230 is an apocalyptic number.
123210230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
123210230 is an abundant number, since it is smaller than the sum of its proper divisors (137343658).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
123210230 is a wasteful number, since it uses less digits than its factorization.
123210230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 86192.
The product of its (nonzero) digits is 72, while the sum is 14.
The square root of 123210230 is about 11100.0103603555. The cubic root of 123210230 is about 497.6021591003.
Adding to 123210230 its reverse (32012321), we get a palindrome (155222551).
The spelling of 123210230 in words is "one hundred twenty-three million, two hundred ten thousand, two hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •