Base | Representation |
---|---|
bin | 10001001101110… |
… | …00111000111111 |
3 | 101001201220022212 |
4 | 20212320320333 |
5 | 243432142343 |
6 | 22155131035 |
7 | 3402324614 |
oct | 1046707077 |
9 | 331656285 |
10 | 144412223 |
11 | 7457604a |
12 | 40443a7b |
13 | 23bc3727 |
14 | 1527250b |
15 | ca28c18 |
hex | 89b8e3f |
144412223 has 4 divisors (see below), whose sum is σ = 144440088. Its totient is φ = 144384360.
The previous prime is 144412207. The next prime is 144412231. The reversal of 144412223 is 322214441.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322214441 = 2441 ⋅132001.
It is a cyclic number.
It is not a de Polignac number, because 144412223 - 24 = 144412207 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144412523) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3608 + ... + 17373.
It is an arithmetic number, because the mean of its divisors is an integer number (36110022).
Almost surely, 2144412223 is an apocalyptic number.
144412223 is a deficient number, since it is larger than the sum of its proper divisors (27865).
144412223 is an equidigital number, since it uses as much as digits as its factorization.
144412223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27864.
The product of its digits is 1536, while the sum is 23.
The square root of 144412223 is about 12017.1636836651. The cubic root of 144412223 is about 524.6479550658.
Adding to 144412223 its reverse (322214441), we get a palindrome (466626664).
The spelling of 144412223 in words is "one hundred forty-four million, four hundred twelve thousand, two hundred twenty-three".
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