Search a number
-
+
13138132 = 227469219
BaseRepresentation
bin110010000111…
…100011010100
3220201111010111
4302013203110
511330410012
61145332404
7216446410
oct62074324
926644114
1013138132
117463967
124497104
132950057
141a5dd40
151247ba7
hexc878d4

13138132 has 12 divisors (see below), whose sum is σ = 26276320. Its totient is φ = 5630616.

The previous prime is 13138123. The next prime is 13138133. The reversal of 13138132 is 23183131.

13138132 is an admirable number.

It is a super-3 number, since 3×131381323 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13138133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234582 + ... + 234637.

Almost surely, 213138132 is an apocalyptic number.

It is an amenable number.

13138132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13138132 is a wasteful number, since it uses less digits than its factorization.

13138132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469230 (or 469228 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 13138132 is about 3624.6561216204. The cubic root of 13138132 is about 235.9633429611.

The spelling of 13138132 in words is "thirteen million, one hundred thirty-eight thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 469219 938438 1876876 3284533 6569066 13138132