Search a number
-
+
550013 = 4312791
BaseRepresentation
bin10000110010001111101
31000221110212
42012101331
5120100023
615442205
74450352
oct2062175
91027425
10550013
11346262
12226365
13163469
14104629
15ace78
hex8647d

550013 has 4 divisors (see below), whose sum is σ = 562848. Its totient is φ = 537180.

The previous prime is 550009. The next prime is 550027. The reversal of 550013 is 310055.

550013 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310055 = 562011.

It is a cyclic number.

It is not a de Polignac number, because 550013 - 22 = 550009 is a prime.

It is a super-3 number, since 3×5500133 = 499160393336556591, which contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 550013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6353 + ... + 6438.

It is an arithmetic number, because the mean of its divisors is an integer number (140712).

2550013 is an apocalyptic number.

It is an amenable number.

550013 is a deficient number, since it is larger than the sum of its proper divisors (12835).

550013 is a wasteful number, since it uses less digits than its factorization.

550013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12834.

The product of its (nonzero) digits is 75, while the sum is 14.

The square root of 550013 is about 741.6286132560. The cubic root of 550013 is about 81.9327725808.

Adding to 550013 its reverse (310055), we get a palindrome (860068).

The spelling of 550013 in words is "five hundred fifty thousand, thirteen".

Divisors: 1 43 12791 550013