Base | Representation |
---|---|
bin | 1111110011110101101101 |
3 | 21210120011202 |
4 | 33303311231 |
5 | 2030110433 |
6 | 224455245 |
7 | 50141033 |
oct | 17636555 |
9 | 7716152 |
10 | 4144493 |
11 | 2380901 |
12 | 147a525 |
13 | b21582 |
14 | 79c553 |
15 | 56cee8 |
hex | 3f3d6d |
4144493 has 4 divisors (see below), whose sum is σ = 4151868. Its totient is φ = 4137120.
The previous prime is 4144487. The next prime is 4144537. The reversal of 4144493 is 3944414.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3944414 = 2 ⋅1972207.
It can be written as a sum of positive squares in 2 ways, for example, as 1247689 + 2896804 = 1117^2 + 1702^2 .
It is a cyclic number.
It is not a de Polignac number, because 4144493 - 28 = 4144237 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (4144423) 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, 2768 + ... + 3993.
It is an arithmetic number, because the mean of its divisors is an integer number (1037967).
Almost surely, 24144493 is an apocalyptic number.
It is an amenable number.
4144493 is a deficient number, since it is larger than the sum of its proper divisors (7375).
4144493 is an equidigital number, since it uses as much as digits as its factorization.
4144493 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7374.
The product of its digits is 6912, while the sum is 29.
The square root of 4144493 is about 2035.8027900561. The cubic root of 4144493 is about 160.6289437176.
The spelling of 4144493 in words is "four million, one hundred forty-four thousand, four hundred ninety-three".
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