Base | Representation |
---|---|
bin | 1100111110011… |
… | …0101001111111 |
3 | 10210101221010221 |
4 | 3033212221333 |
5 | 102413002033 |
6 | 5222242211 |
7 | 1230403066 |
oct | 317465177 |
9 | 123357127 |
10 | 54422143 |
11 | 287a1186 |
12 | 16286367 |
13 | b376169 |
14 | 73291dd |
15 | 4ba012d |
hex | 33e6a7f |
54422143 has 4 divisors (see below), whose sum is σ = 56177728. Its totient is φ = 52666560.
The previous prime is 54422119. The next prime is 54422161. The reversal of 54422143 is 34122445.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 54422143 - 25 = 54422111 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 (54422843) 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, 877746 + ... + 877807.
It is an arithmetic number, because the mean of its divisors is an integer number (14044432).
Almost surely, 254422143 is an apocalyptic number.
54422143 is a deficient number, since it is larger than the sum of its proper divisors (1755585).
54422143 is a wasteful number, since it uses less digits than its factorization.
54422143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1755584.
The product of its digits is 3840, while the sum is 25.
The square root of 54422143 is about 7377.1365040915. The cubic root of 54422143 is about 378.9586980981.
Adding to 54422143 its reverse (34122445), we get a palindrome (88544588).
The spelling of 54422143 in words is "fifty-four million, four hundred twenty-two thousand, one hundred forty-three".
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