Search a number
-
+
3101223 = 31033741
BaseRepresentation
bin1011110101001000100111
312211120002010
423311020213
51243214343
6150245303
735234316
oct13651047
95746063
103101223
111828aa4
121056833
13847758
145aa27d
15413d33
hex2f5227

3101223 has 4 divisors (see below), whose sum is σ = 4134968. Its totient is φ = 2067480.

The previous prime is 3101207. The next prime is 3101233. The reversal of 3101223 is 3221013.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3101223 - 24 = 3101207 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3101199 and 3101208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3101233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516868 + ... + 516873.

It is an arithmetic number, because the mean of its divisors is an integer number (1033742).

Almost surely, 23101223 is an apocalyptic number.

3101223 is a deficient number, since it is larger than the sum of its proper divisors (1033745).

3101223 is a wasteful number, since it uses less digits than its factorization.

3101223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033744.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 3101223 is about 1761.0289605796. The cubic root of 3101223 is about 145.8291458571.

Adding to 3101223 its reverse (3221013), we get a palindrome (6322236).

The spelling of 3101223 in words is "three million, one hundred one thousand, two hundred twenty-three".

Divisors: 1 3 1033741 3101223