Base | Representation |
---|---|
bin | 11010001011001101… |
… | …100110011110111101 |
3 | 2200112201021100220222 |
4 | 122023031212132331 |
5 | 430024440333201 |
6 | 20524512151125 |
7 | 2013322656254 |
oct | 321315463675 |
9 | 80481240828 |
10 | 28105402301 |
11 | 10a12848809 |
12 | 55445384a5 |
13 | 285ba03482 |
14 | 150898979b |
15 | ae763691b |
hex | 68b3667bd |
28105402301 has 8 divisors (see below), whose sum is σ = 29370912384. Its totient is φ = 26867705760.
The previous prime is 28105402291. The next prime is 28105402343. The reversal of 28105402301 is 10320450182.
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 28105402301 - 210 = 28105401277 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 (28105402901) 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, 6951320 + ... + 6955361.
It is an arithmetic number, because the mean of its divisors is an integer number (3671364048).
Almost surely, 228105402301 is an apocalyptic number.
It is an amenable number.
28105402301 is a deficient number, since it is larger than the sum of its proper divisors (1265510083).
28105402301 is a wasteful number, since it uses less digits than its factorization.
28105402301 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13906771.
The product of its (nonzero) digits is 1920, while the sum is 26.
Adding to 28105402301 its reverse (10320450182), we get a palindrome (38425852483).
The spelling of 28105402301 in words is "twenty-eight billion, one hundred five million, four hundred two thousand, three hundred one".
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