Base | Representation |
---|---|
bin | 10001001101001… |
… | …00110100101111 |
3 | 101001120201120201 |
4 | 20212210310233 |
5 | 243422030111 |
6 | 22153254331 |
7 | 3401533156 |
oct | 1046446457 |
9 | 331521521 |
10 | 144330031 |
11 | 7451a31a |
12 | 404043a7 |
13 | 23b951b1 |
14 | 1525059d |
15 | ca0e6c1 |
hex | 89a4d2f |
144330031 has 2 divisors, whose sum is σ = 144330032. Its totient is φ = 144330030.
The previous prime is 144330029. The next prime is 144330047. The reversal of 144330031 is 130033441.
144330031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is an emirp because it is prime and its reverse (130033441) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 144330031 - 21 = 144330029 is a prime.
It is a super-2 number, since 2×1443300312 = 41662315696921922, which contains 22 as substring.
Together with 144330029, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 144329990 and 144330008.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (144330001) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72165015 + 72165016.
It is an arithmetic number, because the mean of its divisors is an integer number (72165016).
Almost surely, 2144330031 is an apocalyptic number.
144330031 is a deficient number, since it is larger than the sum of its proper divisors (1).
144330031 is an equidigital number, since it uses as much as digits as its factorization.
144330031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 432, while the sum is 19.
The square root of 144330031 is about 12013.7434215984. The cubic root of 144330031 is about 524.5484019778.
Adding to 144330031 its reverse (130033441), we get a palindrome (274363472).
The spelling of 144330031 in words is "one hundred forty-four million, three hundred thirty thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •