Base | Representation |
---|---|
bin | 110110101101… |
… | …0100010110011 |
3 | 1222222012212211 |
4 | 1231122202303 |
5 | 24320314134 |
6 | 2502432551 |
7 | 465540133 |
oct | 155324263 |
9 | 58865784 |
10 | 28682419 |
11 | 15210587 |
12 | 9732757 |
13 | 5c3335c |
14 | 3b48ac3 |
15 | 27b8764 |
hex | 1b5a8b3 |
28682419 has 8 divisors (see below), whose sum is σ = 30895040. Its totient is φ = 26540136.
The previous prime is 28682413. The next prime is 28682431. The reversal of 28682419 is 91428682.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 28682419 - 211 = 28680371 is a prime.
It is a super-2 number, since 2×286824192 = 1645362319383122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (28682413) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16737 + ... + 18370.
It is an arithmetic number, because the mean of its divisors is an integer number (3861880).
Almost surely, 228682419 is an apocalyptic number.
28682419 is a deficient number, since it is larger than the sum of its proper divisors (2212621).
28682419 is a wasteful number, since it uses less digits than its factorization.
28682419 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35169.
The product of its digits is 55296, while the sum is 40.
The square root of 28682419 is about 5355.5969788624. The cubic root of 28682419 is about 306.1060584703.
The spelling of 28682419 in words is "twenty-eight million, six hundred eighty-two thousand, four hundred nineteen".
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