Base | Representation |
---|---|
bin | 10001001010110… |
… | …01001011110101 |
3 | 101000222222120222 |
4 | 20211121023311 |
5 | 243332121323 |
6 | 22142504125 |
7 | 3366103001 |
oct | 1045311365 |
9 | 330888528 |
10 | 144020213 |
11 | 74328577 |
12 | 40295045 |
13 | 23ab717c |
14 | 151ad701 |
15 | c99c9c8 |
hex | 89592f5 |
144020213 has 4 divisors (see below), whose sum is σ = 144204000. Its totient is φ = 143836428.
The previous prime is 144020197. The next prime is 144020231. The reversal of 144020213 is 312020441.
144020213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 144020213 - 24 = 144020197 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 144020191 and 144020200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144020113) 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, 90713 + ... + 92286.
It is an arithmetic number, because the mean of its divisors is an integer number (36051000).
Almost surely, 2144020213 is an apocalyptic number.
It is an amenable number.
144020213 is a deficient number, since it is larger than the sum of its proper divisors (183787).
144020213 is an equidigital number, since it uses as much as digits as its factorization.
144020213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 183786.
The product of its (nonzero) digits is 192, while the sum is 17.
The square root of 144020213 is about 12000.8421787806. The cubic root of 144020213 is about 524.1728022526.
Adding to 144020213 its reverse (312020441), we get a palindrome (456040654).
The spelling of 144020213 in words is "one hundred forty-four million, twenty thousand, two hundred thirteen".
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