Base | Representation |
---|---|
bin | 1100000011011… |
… | …0100001111101 |
3 | 10112010110102121 |
4 | 3000312201331 |
5 | 100420230010 |
6 | 5003322541 |
7 | 1152465454 |
oct | 300664175 |
9 | 115113377 |
10 | 50555005 |
11 | 2659a7a6 |
12 | 14b20451 |
13 | a620c07 |
14 | 69ddb9b |
15 | 46893da |
hex | 303687d |
50555005 has 4 divisors (see below), whose sum is σ = 60666012. Its totient is φ = 40444000.
The previous prime is 50555003. The next prime is 50555027. The reversal of 50555005 is 50055505.
50555005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50055505 = 5 ⋅10011101.
It can be written as a sum of positive squares in 2 ways, for example, as 38402809 + 12152196 = 6197^2 + 3486^2 .
It is not a de Polignac number, because 50555005 - 21 = 50555003 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 (50555003) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5055496 + ... + 5055505.
It is an arithmetic number, because the mean of its divisors is an integer number (15166503).
Almost surely, 250555005 is an apocalyptic number.
It is an amenable number.
50555005 is a deficient number, since it is larger than the sum of its proper divisors (10111007).
50555005 is a wasteful number, since it uses less digits than its factorization.
50555005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10111006.
The product of its (nonzero) digits is 3125, while the sum is 25.
The square root of 50555005 is about 7110.2042867980. The cubic root of 50555005 is about 369.7612411424.
Subtracting from 50555005 its reverse (50055505), we obtain a triangular number (499500 = T999).
It can be divided in two parts, 5055500 and 5, that added together give a palindrome (5055505).
The spelling of 50555005 in words is "fifty million, five hundred fifty-five thousand, five".
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