Base | Representation |
---|---|
bin | 10001001011100… |
… | …10010101101001 |
3 | 101001012012220211 |
4 | 20211302111221 |
5 | 243343420431 |
6 | 22145021121 |
7 | 3400012243 |
oct | 1045622551 |
9 | 331165824 |
10 | 144123241 |
11 | 74398a19 |
12 | 403247a1 |
13 | 23b22032 |
14 | 151d9093 |
15 | c9bd2b1 |
hex | 8972569 |
144123241 has 8 divisors (see below), whose sum is σ = 148461768. Its totient is φ = 139824000.
The previous prime is 144123233. The next prime is 144123289. The reversal of 144123241 is 142321441.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 1201216 + 142922025 = 1096^2 + 11955^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 144123241 - 23 = 144123233 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (144123641) 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 7 ways as a sum of consecutive naturals, for example, 2290 + ... + 17131.
It is an arithmetic number, because the mean of its divisors is an integer number (18557721).
Almost surely, 2144123241 is an apocalyptic number.
It is an amenable number.
144123241 is a deficient number, since it is larger than the sum of its proper divisors (4338527).
144123241 is a wasteful number, since it uses less digits than its factorization.
144123241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19643.
The product of its digits is 768, while the sum is 22.
The square root of 144123241 is about 12005.1339434427. The cubic root of 144123241 is about 524.2977652739.
Adding to 144123241 its reverse (142321441), we get a palindrome (286444682).
The spelling of 144123241 in words is "one hundred forty-four million, one hundred twenty-three thousand, two hundred forty-one".
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