Base | Representation |
---|---|
bin | 1101000100100… |
… | …1000010110111 |
3 | 10211011101221212 |
4 | 3101021002313 |
5 | 103013401033 |
6 | 5235032035 |
7 | 1234002032 |
oct | 321110267 |
9 | 124141855 |
10 | 54825143 |
11 | 28a46a3a |
12 | 1643b61b |
13 | b487719 |
14 | 73d2019 |
15 | 4c2e748 |
hex | 34490b7 |
54825143 has 4 divisors (see below), whose sum is σ = 56593728. Its totient is φ = 53056560.
The previous prime is 54825107. The next prime is 54825151. The reversal of 54825143 is 34152845.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34152845 = 5 ⋅6830569.
It is a cyclic number.
It is not a de Polignac number, because 54825143 - 212 = 54821047 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 (54825193) 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, 884246 + ... + 884307.
It is an arithmetic number, because the mean of its divisors is an integer number (14148432).
Almost surely, 254825143 is an apocalyptic number.
54825143 is a deficient number, since it is larger than the sum of its proper divisors (1768585).
54825143 is a wasteful number, since it uses less digits than its factorization.
54825143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1768584.
The product of its digits is 19200, while the sum is 32.
The square root of 54825143 is about 7404.4002457998. The cubic root of 54825143 is about 379.8918043769.
Adding to 54825143 its reverse (34152845), we get a palindrome (88977988).
The spelling of 54825143 in words is "fifty-four million, eight hundred twenty-five thousand, one hundred forty-three".
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