Search a number
-
+
3031011013 = 9239328067
BaseRepresentation
bin1011010010101001…
…1000111011000101
321211020101022110011
42310222120323011
522201414323023
61220433030221
7135053111542
oct26452307305
97736338404
103031011013
111315a21488
127070b5371
13393c51754
1420a799bc9
1512b16c50d
hexb4a98ec5

3031011013 has 4 divisors (see below), whose sum is σ = 3031348320. Its totient is φ = 3030673708.

The previous prime is 3031011007. The next prime is 3031011037. The reversal of 3031011013 is 3101101303.

It is a happy number.

3031011013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3031011013 - 29 = 3031010501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3031010984 and 3031011002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031011913) 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, 154795 + ... + 173272.

It is an arithmetic number, because the mean of its divisors is an integer number (757837080).

Almost surely, 23031011013 is an apocalyptic number.

It is an amenable number.

3031011013 is a deficient number, since it is larger than the sum of its proper divisors (337307).

3031011013 is an equidigital number, since it uses as much as digits as its factorization.

3031011013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337306.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 3031011013 is about 55054.6184529509. The cubic root of 3031011013 is about 1447.2020580291.

Adding to 3031011013 its reverse (3101101303), we get a palindrome (6132112316).

The spelling of 3031011013 in words is "three billion, thirty-one million, eleven thousand, thirteen".

Divisors: 1 9239 328067 3031011013