Base | Representation |
---|---|
bin | 1100111001110… |
… | …0111011001111 |
3 | 10202211120212202 |
4 | 3032130323033 |
5 | 102323321033 |
6 | 5211552115 |
7 | 1225004450 |
oct | 316347317 |
9 | 122746782 |
10 | 54120143 |
11 | 286052a0 |
12 | 1615b63b |
13 | b29b86c |
14 | 728b127 |
15 | 4b408e8 |
hex | 339cecf |
54120143 has 16 divisors (see below), whose sum is σ = 68152320. Its totient is φ = 41748000.
The previous prime is 54120139. The next prime is 54120167. The reversal of 54120143 is 34102145.
It is not a de Polignac number, because 54120143 - 22 = 54120139 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 (54120193) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4298 + ... + 11256.
It is an arithmetic number, because the mean of its divisors is an integer number (4259520).
Almost surely, 254120143 is an apocalyptic number.
54120143 is a deficient number, since it is larger than the sum of its proper divisors (14032177).
54120143 is a wasteful number, since it uses less digits than its factorization.
54120143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7078.
The product of its (nonzero) digits is 480, while the sum is 20.
The square root of 54120143 is about 7356.6393822179. The cubic root of 54120143 is about 378.2564234373.
Adding to 54120143 its reverse (34102145), we get a palindrome (88222288).
The spelling of 54120143 in words is "fifty-four million, one hundred twenty thousand, one hundred forty-three".
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