Base | Representation |
---|---|
bin | 10001001011101… |
… | …11110010000101 |
3 | 101001020100111202 |
4 | 20211313302011 |
5 | 243400124131 |
6 | 22145312245 |
7 | 3400134251 |
oct | 1045676205 |
9 | 331210452 |
10 | 144145541 |
11 | 74403751 |
12 | 40335685 |
13 | 23b2c227 |
14 | 15203261 |
15 | c9c4bcb |
hex | 8977c85 |
144145541 has 2 divisors, whose sum is σ = 144145542. Its totient is φ = 144145540.
The previous prime is 144145523. The next prime is 144145543. The reversal of 144145541 is 145541441.
144145541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 120340900 + 23804641 = 10970^2 + 4879^2 .
It is an emirp because it is prime and its reverse (145541441) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 144145541 - 214 = 144129157 is a prime.
Together with 144145543, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (144145543) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72072770 + 72072771.
It is an arithmetic number, because the mean of its divisors is an integer number (72072771).
Almost surely, 2144145541 is an apocalyptic number.
It is an amenable number.
144145541 is a deficient number, since it is larger than the sum of its proper divisors (1).
144145541 is an equidigital number, since it uses as much as digits as its factorization.
144145541 is an evil number, because the sum of its binary digits is even.
The product of its digits is 6400, while the sum is 29.
The square root of 144145541 is about 12006.0626768312. The cubic root of 144145541 is about 524.3248051811.
Adding to 144145541 its reverse (145541441), we get a palindrome (289686982).
The spelling of 144145541 in words is "one hundred forty-four million, one hundred forty-five thousand, five hundred forty-one".
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