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808000807 = 1304361949
BaseRepresentation
bin110000001010010…
…001110100100111
32002022101200201211
4300022101310213
53123322011212
6212102132251
726010615325
oct6012216447
92068350654
10808000807
11385105a69
121a6721087
13cb5247b3
147944cd15
154ae079a7
hex30291d27

808000807 has 4 divisors (see below), whose sum is σ = 808075800. Its totient is φ = 807925816.

The previous prime is 808000801. The next prime is 808000883. The reversal of 808000807 is 708000808.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 808000807 - 215 = 807968039 is a prime.

It is a super-2 number, since 2×8080008072 = 1305730608225302498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808000801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17932 + ... + 44017.

It is an arithmetic number, because the mean of its divisors is an integer number (202018950).

Almost surely, 2808000807 is an apocalyptic number.

808000807 is a deficient number, since it is larger than the sum of its proper divisors (74993).

808000807 is a wasteful number, since it uses less digits than its factorization.

808000807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74992.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 808000807 is about 28425.3550021807. The cubic root of 808000807 is about 931.4022116437.

Subtracting from 808000807 its reverse (708000808), we obtain a palindrome (99999999).

The spelling of 808000807 in words is "eight hundred eight million, eight hundred seven", and thus it is an aban number.

Divisors: 1 13043 61949 808000807