Search a number
-
+
3113438 = 21556719
BaseRepresentation
bin1011111000000111011110
312212011211112
423320013132
51244112223
6150422022
735315036
oct13700736
95764745
103113438
111837199
121061912
13850193
145b08c6
15417778
hex2f81de

3113438 has 4 divisors (see below), whose sum is σ = 4670160. Its totient is φ = 1556718.

The previous prime is 3113437. The next prime is 3113443. The reversal of 3113438 is 8343113.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8343113 = 22693677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3113437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 778358 + ... + 778361.

It is an arithmetic number, because the mean of its divisors is an integer number (1167540).

Almost surely, 23113438 is an apocalyptic number.

3113438 is a deficient number, since it is larger than the sum of its proper divisors (1556722).

3113438 is a wasteful number, since it uses less digits than its factorization.

3113438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556721.

The product of its digits is 864, while the sum is 23.

The square root of 3113438 is about 1764.4936950865. The cubic root of 3113438 is about 146.0203574541.

The spelling of 3113438 in words is "three million, one hundred thirteen thousand, four hundred thirty-eight".

Divisors: 1 2 1556719 3113438