Base | Representation |
---|---|
bin | 10001001011100… |
… | …10000100011111 |
3 | 101001012011102011 |
4 | 20211302010133 |
5 | 243343402033 |
6 | 22145012051 |
7 | 3400006114 |
oct | 1045620437 |
9 | 331164364 |
10 | 144122143 |
11 | 74398110 |
12 | 40324027 |
13 | 23b21699 |
14 | 151d890b |
15 | c9bcccd |
hex | 897211f |
144122143 has 4 divisors (see below), whose sum is σ = 157224168. Its totient is φ = 131020120.
The previous prime is 144122129. The next prime is 144122179. The reversal of 144122143 is 341221441.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 144122143 - 221 = 142024991 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 (144122123) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6550996 + ... + 6551017.
It is an arithmetic number, because the mean of its divisors is an integer number (39306042).
Almost surely, 2144122143 is an apocalyptic number.
144122143 is a deficient number, since it is larger than the sum of its proper divisors (13102025).
144122143 is a wasteful number, since it uses less digits than its factorization.
144122143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13102024.
The product of its digits is 768, while the sum is 22.
The square root of 144122143 is about 12005.0882129204. The cubic root of 144122143 is about 524.2964338199.
Adding to 144122143 its reverse (341221441), we get a palindrome (485343584).
It can be divided in two parts, 1 and 44122143, that added together give a palindrome (44122144).
The spelling of 144122143 in words is "one hundred forty-four million, one hundred twenty-two thousand, one hundred forty-three".
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