Search a number
-
+
805113841 = 7115016263
BaseRepresentation
bin101111111111010…
…000111111110001
32002002222000120011
4233333100333301
53122102120331
6211520214521
725644232450
oct5777207761
92062860504
10805113841
11383513a44
121a576a441
13caa5372c
1478cdab97
154aa373b1
hex2ffd0ff1

805113841 has 4 divisors (see below), whose sum is σ = 920130112. Its totient is φ = 690097572.

The previous prime is 805113797. The next prime is 805113851. The reversal of 805113841 is 148311508.

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 805113841 - 213 = 805105649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805113851) 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, 57508125 + ... + 57508138.

It is an arithmetic number, because the mean of its divisors is an integer number (230032528).

Almost surely, 2805113841 is an apocalyptic number.

It is an amenable number.

805113841 is a deficient number, since it is larger than the sum of its proper divisors (115016271).

805113841 is a wasteful number, since it uses less digits than its factorization.

805113841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115016270.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 805113841 is about 28374.5280313171. The cubic root of 805113841 is about 930.2915958480.

The spelling of 805113841 in words is "eight hundred five million, one hundred thirteen thousand, eight hundred forty-one".

Divisors: 1 7 115016263 805113841