Base | Representation |
---|---|
bin | 1011111101101… |
… | …1010010100010 |
3 | 10111102110210000 |
4 | 2333123102202 |
5 | 100321300112 |
6 | 4551320430 |
7 | 1146351054 |
oct | 277332242 |
9 | 114373700 |
10 | 50181282 |
11 | 26364a38 |
12 | 14980116 |
13 | a51ca88 |
14 | 69438d4 |
15 | 46137dc |
hex | 2fdb4a2 |
50181282 has 40 divisors (see below), whose sum is σ = 113216796. Its totient is φ = 16612128.
The previous prime is 50181269. The next prime is 50181283. The reversal of 50181282 is 28218105.
50181282 is a `hidden beast` number, since 501 + 81 + 2 + 82 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 46908801 + 3272481 = 6849^2 + 1809^2 .
It is a super-2 number, since 2×501812822 = 5036322126327048, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (50181283) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24448 + ... + 26420.
Almost surely, 250181282 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 50181282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56608398).
50181282 is an abundant number, since it is smaller than the sum of its proper divisors (63035514).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
50181282 is a wasteful number, since it uses less digits than its factorization.
50181282 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2144 (or 2135 counting only the distinct ones).
The product of its (nonzero) digits is 1280, while the sum is 27.
The square root of 50181282 is about 7083.8747871486. The cubic root of 50181282 is about 368.8478452599.
Adding to 50181282 its reverse (28218105), we get a palindrome (78399387).
The spelling of 50181282 in words is "fifty million, one hundred eighty-one thousand, two hundred eighty-two".
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