Search a number
-
+
3111423 = 37229647
BaseRepresentation
bin1011110111100111111111
312212002001220
423313213333
51244031143
6150404423
735306130
oct13674777
95762056
103111423
111835727
121060713
1384c2a3
145adc87
15416d83
hex2f79ff

3111423 has 16 divisors (see below), whose sum is σ = 4769280. Its totient is φ = 1767456.

The previous prime is 3111419. The next prime is 3111431. The reversal of 3111423 is 3241113.

It is not a de Polignac number, because 3111423 - 22 = 3111419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4486 + ... + 5132.

It is an arithmetic number, because the mean of its divisors is an integer number (298080).

Almost surely, 23111423 is an apocalyptic number.

3111423 is a deficient number, since it is larger than the sum of its proper divisors (1657857).

3111423 is a wasteful number, since it uses less digits than its factorization.

3111423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886.

The product of its digits is 72, while the sum is 15.

The square root of 3111423 is about 1763.9226173503. The cubic root of 3111423 is about 145.9888494643.

Adding to 3111423 its reverse (3241113), we get a palindrome (6352536).

The spelling of 3111423 in words is "three million, one hundred eleven thousand, four hundred twenty-three".

Divisors: 1 3 7 21 229 647 687 1603 1941 4529 4809 13587 148163 444489 1037141 3111423