Base | Representation |
---|---|
bin | 101111011101… |
… | …100110101001 |
3 | 212102010020202 |
4 | 233131212221 |
5 | 11141121100 |
6 | 1122401545 |
7 | 210520061 |
oct | 57354651 |
9 | 25363222 |
10 | 12442025 |
11 | 7028972 |
12 | 42002b5 |
13 | 276825b |
14 | 191c3a1 |
15 | 115b7d5 |
hex | bdd9a9 |
12442025 has 12 divisors (see below), whose sum is σ = 15475200. Its totient is φ = 9923280.
The previous prime is 12442021. The next prime is 12442033. The reversal of 12442025 is 52024421.
It is a happy number.
It is not a de Polignac number, because 12442025 - 22 = 12442021 is a prime.
It is a super-2 number, since 2×124420252 = 309607972201250, which contains 22 as substring.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 12441988 and 12442006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12442021) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11456 + ... + 12494.
It is an arithmetic number, because the mean of its divisors is an integer number (1289600).
Almost surely, 212442025 is an apocalyptic number.
It is an amenable number.
12442025 is a deficient number, since it is larger than the sum of its proper divisors (3033175).
12442025 is a wasteful number, since it uses less digits than its factorization.
12442025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1528 (or 1523 counting only the distinct ones).
The product of its (nonzero) digits is 640, while the sum is 20.
The square root of 12442025 is about 3527.3254740667. The cubic root of 12442025 is about 231.7200907333.
Adding to 12442025 its reverse (52024421), we get a palindrome (64466446).
The spelling of 12442025 in words is "twelve million, four hundred forty-two thousand, twenty-five".
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