Base | Representation |
---|---|
bin | 1100111001110… |
… | …1001010110101 |
3 | 10202211122020201 |
4 | 3032131022311 |
5 | 102323334031 |
6 | 5212000501 |
7 | 1225010404 |
oct | 316351265 |
9 | 122748221 |
10 | 54121141 |
11 | 28606018 |
12 | 16160131 |
13 | b29c159 |
14 | 728b63b |
15 | 4b40d61 |
hex | 339d2b5 |
54121141 has 4 divisors (see below), whose sum is σ = 54187884. Its totient is φ = 54054400.
The previous prime is 54121127. The next prime is 54121169. The reversal of 54121141 is 14112145.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14112145 = 5 ⋅2822429.
It can be written as a sum of positive squares in 2 ways, for example, as 7540516 + 46580625 = 2746^2 + 6825^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-54121141 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 (54121741) 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, 32140 + ... + 33781.
It is an arithmetic number, because the mean of its divisors is an integer number (13546971).
Almost surely, 254121141 is an apocalyptic number.
It is an amenable number.
54121141 is a deficient number, since it is larger than the sum of its proper divisors (66743).
54121141 is an equidigital number, since it uses as much as digits as its factorization.
54121141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 66742.
The product of its digits is 160, while the sum is 19.
The square root of 54121141 is about 7356.7072117898. The cubic root of 54121141 is about 378.2587484964.
Adding to 54121141 its reverse (14112145), we get a palindrome (68233286).
The spelling of 54121141 in words is "fifty-four million, one hundred twenty-one thousand, one hundred forty-one".
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