Search a number
-
+
3113255143 = 3203971981
BaseRepresentation
bin1011100110010000…
…1000000011100111
322000222010202012001
42321210020003213
522333443131033
61232531510131
7140102142415
oct27144100347
98028122161
103113255143
111358395739
1272a758347
133a7cb940b
142176882b5
151334b5e7d
hexb99080e7

3113255143 has 4 divisors (see below), whose sum is σ = 3114230328. Its totient is φ = 3112279960.

The previous prime is 3113255113. The next prime is 3113255153. The reversal of 3113255143 is 3415523113.

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: 3415523113 = 9161372833.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3113255143 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 (3113255113) 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, 482788 + ... + 489193.

It is an arithmetic number, because the mean of its divisors is an integer number (778557582).

Almost surely, 23113255143 is an apocalyptic number.

3113255143 is a deficient number, since it is larger than the sum of its proper divisors (975185).

3113255143 is an equidigital number, since it uses as much as digits as its factorization.

3113255143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975184.

The product of its digits is 5400, while the sum is 28.

The square root of 3113255143 is about 55796.5513540039. The cubic root of 3113255143 is about 1460.1749873142.

Adding to 3113255143 its reverse (3415523113), we get a palindrome (6528778256).

The spelling of 3113255143 in words is "three billion, one hundred thirteen million, two hundred fifty-five thousand, one hundred forty-three".

Divisors: 1 3203 971981 3113255143