Base | Representation |
---|---|
bin | 11010001100101100… |
… | …011011111100111110 |
3 | 2200121110001102011220 |
4 | 122030230123330332 |
5 | 430102321402341 |
6 | 20531201054210 |
7 | 2014044201060 |
oct | 321454337476 |
9 | 80543042156 |
10 | 28130262846 |
11 | 10a25888914 |
12 | 5550927366 |
13 | 2863bc905a |
14 | 150bdbb730 |
15 | ae98e7a66 |
hex | 68cb1bf3e |
28130262846 has 32 divisors (see below), whose sum is σ = 64305543168. Its totient is φ = 8036243040.
The previous prime is 28130262821. The next prime is 28130262847. The reversal of 28130262846 is 64826203182.
28130262846 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a junction number, because it is equal to n+sod(n) for n = 28130262798 and 28130262807.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28130262847) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355096 + ... + 427028.
It is an arithmetic number, because the mean of its divisors is an integer number (2009548224).
Almost surely, 228130262846 is an apocalyptic number.
28130262846 is an abundant number, since it is smaller than the sum of its proper divisors (36175280322).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28130262846 is a wasteful number, since it uses less digits than its factorization.
28130262846 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 81256.
The product of its (nonzero) digits is 221184, while the sum is 42.
The spelling of 28130262846 in words is "twenty-eight billion, one hundred thirty million, two hundred sixty-two thousand, eight hundred forty-six".
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