Base | Representation |
---|---|
bin | 10001000111101… |
… | …111111101001010 |
3 | 202000111111211121 |
4 | 101013233331022 |
5 | 1042013302411 |
6 | 44300345454 |
7 | 10055351242 |
oct | 2107577512 |
9 | 660444747 |
10 | 287244106 |
11 | 138161826 |
12 | 8024528a |
13 | 47682a36 |
14 | 2a212b22 |
15 | 1a33e571 |
hex | 111eff4a |
287244106 has 8 divisors (see below), whose sum is σ = 430954020. Its totient is φ = 143592768.
The previous prime is 287244077. The next prime is 287244107. The reversal of 287244106 is 601442782.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 263770081 + 23474025 = 16241^2 + 4845^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (287244107) 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 3 ways as a sum of consecutive naturals, for example, 930 + ... + 23986.
Almost surely, 2287244106 is an apocalyptic number.
287244106 is a deficient number, since it is larger than the sum of its proper divisors (143709914).
287244106 is a wasteful number, since it uses less digits than its factorization.
287244106 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29288.
The product of its (nonzero) digits is 21504, while the sum is 34.
The square root of 287244106 is about 16948.2773755919. The cubic root of 287244106 is about 659.8071873257.
Adding to 287244106 its reverse (601442782), we get a palindrome (888686888).
The spelling of 287244106 in words is "two hundred eighty-seven million, two hundred forty-four thousand, one hundred six".
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