Search a number
-
+
132493 = 472819
BaseRepresentation
bin100000010110001101
320201202011
4200112031
513214433
62501221
71061164
oct402615
9221664
10132493
11905a9
1264811
13483ca
14363db
15293cd
hex2058d

132493 has 4 divisors (see below), whose sum is σ = 135360. Its totient is φ = 129628.

The previous prime is 132491. The next prime is 132499. The reversal of 132493 is 394231.

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: 394231 = 1920749.

It is a cyclic number.

It is not a de Polignac number, because 132493 - 21 = 132491 is a prime.

132493 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132491) 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 3 ways as a sum of consecutive naturals, for example, 1363 + ... + 1456.

It is an arithmetic number, because the mean of its divisors is an integer number (33840).

132493 is a Friedman number, since it can be written as (9^3-1)^2/4-3, using all its digits and the basic arithmetic operations.

2132493 is an apocalyptic number.

It is an amenable number.

132493 is a deficient number, since it is larger than the sum of its proper divisors (2867).

132493 is an equidigital number, since it uses as much as digits as its factorization.

132493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866.

The product of its digits is 648, while the sum is 22.

The square root of 132493 is about 363.9958790976. The cubic root of 132493 is about 50.9797433330.

It can be divided in two parts, 132 and 493, that added together give a 4-th power (625 = 54).

The spelling of 132493 in words is "one hundred thirty-two thousand, four hundred ninety-three".

Divisors: 1 47 2819 132493