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133338 = 2371313
BaseRepresentation
bin100000100011011010
320202220110
4200203122
513231323
62505150
71063512
oct404332
9222813
10133338
11911a7
12651b6
13488ca
1436842
1529793
hex208da

133338 has 16 divisors (see below), whose sum is σ = 271296. Its totient is φ = 43680.

The previous prime is 133337. The next prime is 133349. The reversal of 133338 is 833331.

It is a Curzon number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (133337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270 + ... + 582.

It is an arithmetic number, because the mean of its divisors is an integer number (16956).

2133338 is an apocalyptic number.

133338 is an abundant number, since it is smaller than the sum of its proper divisors (137958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133338 is a wasteful number, since it uses less digits than its factorization.

133338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389.

The product of its digits is 648, while the sum is 21.

The square root of 133338 is about 365.1547617107. The cubic root of 133338 is about 51.0878915044.

Adding to 133338 its reverse (833331), we get a palindrome (966669).

The spelling of 133338 in words is "one hundred thirty-three thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 71 142 213 313 426 626 939 1878 22223 44446 66669 133338