Search a number
-
+
808075609 = 1173461419
BaseRepresentation
bin110000001010100…
…100000101011001
32002022112111100021
4300022210011121
53123331404414
6212103510441
726011346365
oct6012440531
92068474307
10808075609
11385157190
121a6758421
13cb54c863
147946c2a5
154ae1ec24
hex302a4159

808075609 has 4 divisors (see below), whose sum is σ = 881537040. Its totient is φ = 734614180.

The previous prime is 808075607. The next prime is 808075621. The reversal of 808075609 is 906570808.

It is a happy number.

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 808075609 - 21 = 808075607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (808075607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36730699 + ... + 36730720.

It is an arithmetic number, because the mean of its divisors is an integer number (220384260).

Almost surely, 2808075609 is an apocalyptic number.

It is an amenable number.

808075609 is a deficient number, since it is larger than the sum of its proper divisors (73461431).

808075609 is a wasteful number, since it uses less digits than its factorization.

808075609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73461430.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 808075609 is about 28426.6707336614. The cubic root of 808075609 is about 931.4309527860.

The spelling of 808075609 in words is "eight hundred eight million, seventy-five thousand, six hundred nine".

Divisors: 1 11 73461419 808075609