Search a number
-
+
3243391 = 23831699
BaseRepresentation
bin1100010111110101111111
320002210002121
430113311333
51312242031
6153303411
736365644
oct14276577
96083077
103243391
111915898
121104b67
13897388
14605dcb
15441011
hex317d7f

3243391 has 8 divisors (see below), whose sum is σ = 3427200. Its totient is φ = 3063192.

The previous prime is 3243377. The next prime is 3243397. The reversal of 3243391 is 1933423.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3243391 is a prime.

It is an Ulam number.

It is a Duffinian number.

3243391 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1060 + ... + 2758.

It is an arithmetic number, because the mean of its divisors is an integer number (428400).

Almost surely, 23243391 is an apocalyptic number.

3243391 is a deficient number, since it is larger than the sum of its proper divisors (183809).

3243391 is a wasteful number, since it uses less digits than its factorization.

3243391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805.

The product of its digits is 1944, while the sum is 25.

The square root of 3243391 is about 1800.9416981124. The cubic root of 3243391 is about 148.0243294554.

The spelling of 3243391 in words is "three million, two hundred forty-three thousand, three hundred ninety-one".

Divisors: 1 23 83 1699 1909 39077 141017 3243391