Base | Representation |
---|---|
bin | 110101111101… |
… | …001100011001 |
3 | 222121121022021 |
4 | 311331030121 |
5 | 12110104111 |
6 | 1223054441 |
7 | 231136654 |
oct | 65751431 |
9 | 28547267 |
10 | 14144281 |
11 | 7a90898 |
12 | 48a1421 |
13 | 2c12cc8 |
14 | 1c4289b |
15 | 1395d71 |
hex | d7d319 |
14144281 has 2 divisors, whose sum is σ = 14144282. Its totient is φ = 14144280.
The previous prime is 14144267. The next prime is 14144297. The reversal of 14144281 is 18244141.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 10208025 + 3936256 = 3195^2 + 1984^2 .
It is an emirp because it is prime and its reverse (18244141) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-14144281 is a prime.
It is a super-2 number, since 2×141442812 = 400121370013922, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (14144231) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7072140 + 7072141.
It is an arithmetic number, because the mean of its divisors is an integer number (7072141).
Almost surely, 214144281 is an apocalyptic number.
It is an amenable number.
14144281 is a deficient number, since it is larger than the sum of its proper divisors (1).
14144281 is an equidigital number, since it uses as much as digits as its factorization.
14144281 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1024, while the sum is 25.
The square root of 14144281 is about 3760.8883259145. Note that the first 3 decimals coincide. The cubic root of 14144281 is about 241.8393453666.
The spelling of 14144281 in words is "fourteen million, one hundred forty-four thousand, two hundred eighty-one".
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