Base | Representation |
---|---|
bin | 11110010010110… |
… | …11110101010101 |
3 | 122201012012221022 |
4 | 33021123311111 |
5 | 1010024202131 |
6 | 41114530525 |
7 | 6204040166 |
oct | 1711336525 |
9 | 581165838 |
10 | 254131541 |
11 | 1204a5874 |
12 | 71136a45 |
13 | 4085b0c1 |
14 | 25a7376d |
15 | 1749d37b |
hex | f25bd55 |
254131541 has 2 divisors, whose sum is σ = 254131542. Its totient is φ = 254131540.
The previous prime is 254131511. The next prime is 254131547. The reversal of 254131541 is 145131452.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 206037316 + 48094225 = 14354^2 + 6935^2 .
It is a cyclic number.
It is not a de Polignac number, because 254131541 - 26 = 254131477 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 254131541.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (254131547) 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 as a sum of consecutive naturals, namely, 127065770 + 127065771.
It is an arithmetic number, because the mean of its divisors is an integer number (127065771).
Almost surely, 2254131541 is an apocalyptic number.
It is an amenable number.
254131541 is a deficient number, since it is larger than the sum of its proper divisors (1).
254131541 is an equidigital number, since it uses as much as digits as its factorization.
254131541 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 2400, while the sum is 26.
The square root of 254131541 is about 15941.5037245550. The cubic root of 254131541 is about 633.4118587460.
Adding to 254131541 its reverse (145131452), we get a palindrome (399262993).
The spelling of 254131541 in words is "two hundred fifty-four million, one hundred thirty-one thousand, five hundred forty-one".
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