Base | Representation |
---|---|
bin | 1110100100100… |
… | …01110110100111 |
3 | 22112000001002200 |
4 | 13102101312213 |
5 | 222242412411 |
6 | 20043505543 |
7 | 3012646122 |
oct | 722216647 |
9 | 275001080 |
10 | 122232231 |
11 | 62aa6980 |
12 | 34b282b3 |
13 | 1c428c84 |
14 | 1233b3b9 |
15 | aae6e56 |
hex | 7491da7 |
122232231 has 24 divisors (see below), whose sum is σ = 193415040. Its totient is φ = 73770000.
The previous prime is 122232221. The next prime is 122232239. The reversal of 122232231 is 132232221.
It is not a de Polignac number, because 122232231 - 26 = 122232167 is a prime.
It is a super-2 number, since 2×1222322312 = 29881436590474722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122232239) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22390 + ... + 27308.
It is an arithmetic number, because the mean of its divisors is an integer number (8058960).
Almost surely, 2122232231 is an apocalyptic number.
122232231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
122232231 is a deficient number, since it is larger than the sum of its proper divisors (71182809).
122232231 is a wasteful number, since it uses less digits than its factorization.
122232231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5187 (or 5184 counting only the distinct ones).
The product of its digits is 288, while the sum is 18.
The square root of 122232231 is about 11055.8686225914. The cubic root of 122232231 is about 496.2820637578.
Adding to 122232231 its reverse (132232221), we get a palindrome (254464452).
The spelling of 122232231 in words is "one hundred twenty-two million, two hundred thirty-two thousand, two hundred thirty-one".
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