Search a number
-
+
3131335103 = 13240871931
BaseRepresentation
bin1011101010100100…
…0110000110111111
322002020011022020012
42322221012012333
522403110210403
61234415213435
7140411623601
oct27251060677
98066138205
103131335103
111367614456
1273481727b
133ab979910
14219c33171
15134d87ed8
hexbaa461bf

3131335103 has 4 divisors (see below), whose sum is σ = 3372207048. Its totient is φ = 2890463160.

The previous prime is 3131335099. The next prime is 3131335159. The reversal of 3131335103 is 3015331313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3015331313 = 23571279309.

It is not a de Polignac number, because 3131335103 - 22 = 3131335099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131335183) 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, 120435953 + ... + 120435978.

It is an arithmetic number, because the mean of its divisors is an integer number (843051762).

Almost surely, 23131335103 is an apocalyptic number.

3131335103 is a deficient number, since it is larger than the sum of its proper divisors (240871945).

3131335103 is a wasteful number, since it uses less digits than its factorization.

3131335103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240871944.

The product of its (nonzero) digits is 1215, while the sum is 23.

The square root of 3131335103 is about 55958.3336331596. Note that the first 3 decimals coincide. The cubic root of 3131335103 is about 1462.9961464487.

Adding to 3131335103 its reverse (3015331313), we get a palindrome (6146666416).

The spelling of 3131335103 in words is "three billion, one hundred thirty-one million, three hundred thirty-five thousand, one hundred three".

Divisors: 1 13 240871931 3131335103