Base | Representation |
---|---|
bin | 1110100100100… |
… | …01010111010111 |
3 | 22111222221100121 |
4 | 13102101113113 |
5 | 222242331411 |
6 | 20043452411 |
7 | 3012640234 |
oct | 722212727 |
9 | 274887317 |
10 | 122230231 |
11 | 62aa5422 |
12 | 34b27107 |
13 | 1c4280a6 |
14 | 1233a78b |
15 | aae6571 |
hex | 74915d7 |
122230231 has 2 divisors, whose sum is σ = 122230232. Its totient is φ = 122230230.
The previous prime is 122230219. The next prime is 122230279. The reversal of 122230231 is 132032221.
It is a weak prime.
It is an emirp because it is prime and its reverse (132032221) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-122230231 is a prime.
It is a super-2 number, since 2×1222302312 = 29880458740626722, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (122230201) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61115115 + 61115116.
It is an arithmetic number, because the mean of its divisors is an integer number (61115116).
Almost surely, 2122230231 is an apocalyptic number.
122230231 is a deficient number, since it is larger than the sum of its proper divisors (1).
122230231 is an equidigital number, since it uses as much as digits as its factorization.
122230231 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 122230231 is about 11055.7781725214. The cubic root of 122230231 is about 496.2793569716.
Adding to 122230231 its reverse (132032221), we get a palindrome (254262452).
The spelling of 122230231 in words is "one hundred twenty-two million, two hundred thirty thousand, two hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.078 sec. • engine limits •