Base | Representation |
---|---|
bin | 101111011110… |
… | …010111101001 |
3 | 212102021112220 |
4 | 233132113221 |
5 | 11141221121 |
6 | 1122424253 |
7 | 210532161 |
oct | 57362751 |
9 | 25367486 |
10 | 12445161 |
11 | 7030263 |
12 | 4202089 |
13 | 2769801 |
14 | 191d5a1 |
15 | 115c6c6 |
hex | bde5e9 |
12445161 has 8 divisors (see below), whose sum is σ = 16610880. Its totient is φ = 8288112.
The previous prime is 12445157. The next prime is 12445163. The reversal of 12445161 is 16154421.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12445161 - 22 = 12445157 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12445163) 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, 2836 + ... + 5738.
It is an arithmetic number, because the mean of its divisors is an integer number (2076360).
Almost surely, 212445161 is an apocalyptic number.
It is an amenable number.
12445161 is a deficient number, since it is larger than the sum of its proper divisors (4165719).
12445161 is a wasteful number, since it uses less digits than its factorization.
12445161 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4335.
The product of its digits is 960, while the sum is 24.
The square root of 12445161 is about 3527.7699754944. The cubic root of 12445161 is about 231.7395573705.
Adding to 12445161 its reverse (16154421), we get a palindrome (28599582).
The spelling of 12445161 in words is "twelve million, four hundred forty-five thousand, one hundred sixty-one".
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