Search a number
-
+
13232740 = 2251997359
BaseRepresentation
bin110010011110…
…101001100100
3220220021220111
4302132221210
511341421430
61151342404
7220322263
oct62365144
926807814
1013232740
117518a54
124521a04
132984131
141a865da
151265c2a
hexc9ea64

13232740 has 48 divisors (see below), whose sum is σ = 29635200. Its totient is φ = 4948992.

The previous prime is 13232731. The next prime is 13232761. The reversal of 13232740 is 4723231.

13232740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36681 + ... + 37039.

It is an arithmetic number, because the mean of its divisors is an integer number (617400).

Almost surely, 213232740 is an apocalyptic number.

13232740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13232740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14817600).

13232740 is an abundant number, since it is smaller than the sum of its proper divisors (16402460).

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

13232740 is a wasteful number, since it uses less digits than its factorization.

13232740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 13232740 is about 3637.6833287135. The cubic root of 13232740 is about 236.5283813809.

Adding to 13232740 its reverse (4723231), we get a palindrome (17955971).

The spelling of 13232740 in words is "thirteen million, two hundred thirty-two thousand, seven hundred forty".

Divisors: 1 2 4 5 10 19 20 38 76 95 97 190 194 359 380 388 485 718 970 1436 1795 1843 1940 3590 3686 6821 7180 7372 9215 13642 18430 27284 34105 34823 36860 68210 69646 136420 139292 174115 348230 661637 696460 1323274 2646548 3308185 6616370 13232740