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808442 = 2404221
BaseRepresentation
bin11000101010111111010
31112001222022
43011113322
5201332232
625154442
76604655
oct3052772
91461868
10808442
11502438
1232ba22
13223c8b
1417089c
1510e812
hexc55fa

808442 has 4 divisors (see below), whose sum is σ = 1212666. Its totient is φ = 404220.

The previous prime is 808441. The next prime is 808459. The reversal of 808442 is 244808.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 606841 + 201601 = 779^2 + 449^2 .

It is not an unprimeable number, because it can be changed into a prime (808441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202109 + ... + 202112.

2808442 is an apocalyptic number.

808442 is a deficient number, since it is larger than the sum of its proper divisors (404224).

808442 is a wasteful number, since it uses less digits than its factorization.

808442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404223.

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 808442 is about 899.1340278290. The cubic root of 808442 is about 93.1571705437.

The spelling of 808442 in words is "eight hundred eight thousand, four hundred forty-two".

Divisors: 1 2 404221 808442