Search a number
-
+
3106005131 = 18199170669
BaseRepresentation
bin1011100100100001…
…1110000010001011
322000110111102001002
42321020132002023
522330114131011
61232112245215
7136653415355
oct27110360213
98013442032
103106005131
111354293699
1272824080b
133a664b478
1421671c0d5
15132a32c3b
hexb921e08b

3106005131 has 4 divisors (see below), whose sum is σ = 3106194000. Its totient is φ = 3105816264.

The previous prime is 3106005127. The next prime is 3106005191. The reversal of 3106005131 is 1315006013.

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: 1315006013 = 7318013781.

It is a cyclic number.

It is not a de Polignac number, because 3106005131 - 22 = 3106005127 is a prime.

It is a super-2 number, since 2×31060051312 = 19294535747596654322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3106005101) 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, 67136 + ... + 103533.

It is an arithmetic number, because the mean of its divisors is an integer number (776548500).

Almost surely, 23106005131 is an apocalyptic number.

3106005131 is a deficient number, since it is larger than the sum of its proper divisors (188869).

3106005131 is a wasteful number, since it uses less digits than its factorization.

3106005131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188868.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 3106005131 is about 55731.5452055656. The cubic root of 3106005131 is about 1459.0406425027.

The spelling of 3106005131 in words is "three billion, one hundred six million, five thousand, one hundred thirty-one".

Divisors: 1 18199 170669 3106005131