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808900 = 22528089
BaseRepresentation
bin11000101011111000100
31112002121021
43011133010
5201341100
625200524
76606211
oct3053704
91462537
10808900
11502814
12330144
13224251
14170b08
1510ea1a
hexc57c4

808900 has 18 divisors (see below), whose sum is σ = 1755530. Its totient is φ = 323520.

The previous prime is 808867. The next prime is 808919. The reversal of 808900 is 9808.

808900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 6084 + 802816 = 78^2 + 896^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

808900 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3945 + ... + 4144.

2808900 is an apocalyptic number.

It is an amenable number.

808900 is an abundant number, since it is smaller than the sum of its proper divisors (946630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

808900 is a wasteful number, since it uses less digits than its factorization.

808900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8103 (or 8096 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 808900 is about 899.3886812719. The cubic root of 808900 is about 93.1747590780.

The spelling of 808900 in words is "eight hundred eight thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 8089 16178 32356 40445 80890 161780 202225 404450 808900