Search a number
-
+
13288132 = 22111321787
BaseRepresentation
bin110010101100…
…001011000100
3221000002220001
4302230023010
511400210012
61152451044
7220642624
oct62541304
927002801
1013288132
117556630
124549a84
1329a3400
141a9c884
151277357
hexcac2c4

13288132 has 36 divisors (see below), whose sum is σ = 27485136. Its totient is φ = 5572320.

The previous prime is 13288109. The next prime is 13288139. The reversal of 13288132 is 23188231.

It is a self number, because there is not a number n which added to its sum of digits gives 13288132.

It is not an unprimeable number, because it can be changed into a prime (13288139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6543 + ... + 8329.

It is an arithmetic number, because the mean of its divisors is an integer number (763476).

Almost surely, 213288132 is an apocalyptic number.

It is an amenable number.

13288132 is an abundant number, since it is smaller than the sum of its proper divisors (14197004).

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

13288132 is a wasteful number, since it uses less digits than its factorization.

13288132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828 (or 1813 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 13288132 is about 3645.2890146050. The cubic root of 13288132 is about 236.8579563903.

Subtracting 13288132 from its reverse (23188231), we obtain a palindrome (9900099).

The spelling of 13288132 in words is "thirteen million, two hundred eighty-eight thousand, one hundred thirty-two".

Divisors: 1 2 4 11 13 22 26 44 52 143 169 286 338 572 676 1787 1859 3574 3718 7148 7436 19657 23231 39314 46462 78628 92924 255541 302003 511082 604006 1022164 1208012 3322033 6644066 13288132