Base | Representation |
---|---|
bin | 110110100100… |
… | …0011000000111 |
3 | 1222211102210211 |
4 | 1231020120013 |
5 | 24310424012 |
6 | 2501100251 |
7 | 465110161 |
oct | 155103007 |
9 | 58742724 |
10 | 28608007 |
11 | 1516a68a |
12 | 96b7687 |
13 | 5c0851c |
14 | 3b29931 |
15 | 27a16a7 |
hex | 1b48607 |
28608007 has 16 divisors (see below), whose sum is σ = 30643200. Its totient is φ = 26661600.
The previous prime is 28607987. The next prime is 28608011. The reversal of 28608007 is 70080682.
It is a cyclic number.
It is not a de Polignac number, because 28608007 - 211 = 28605959 is a prime.
It is a house number.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 28608007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28608407) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189382 + ... + 189532.
It is an arithmetic number, because the mean of its divisors is an integer number (1915200).
Almost surely, 228608007 is an apocalyptic number.
28608007 is a deficient number, since it is larger than the sum of its proper divisors (2035193).
28608007 is a wasteful number, since it uses less digits than its factorization.
28608007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 366.
The product of its (nonzero) digits is 5376, while the sum is 31.
The square root of 28608007 is about 5348.6453425143. The cubic root of 28608007 is about 305.8411146336.
Adding to 28608007 its reverse (70080682), we get a palindrome (98688689).
The spelling of 28608007 in words is "twenty-eight million, six hundred eight thousand, seven".
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