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808144 = 2453953
BaseRepresentation
bin11000101010011010000
31112001120021
43011103100
5201330034
625153224
76604051
oct3052320
91461507
10808144
11502197
1232b814
13223abc
14170728
1510e6b4
hexc54d0

808144 has 20 divisors (see below), whose sum is σ = 1596996. Its totient is φ = 396032.

The previous prime is 808111. The next prime is 808147. The reversal of 808144 is 441808.

It can be written as a sum of positive squares in 2 ways, for example, as 462400 + 345744 = 680^2 + 588^2 .

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808147) 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, 372 + ... + 1324.

2808144 is an apocalyptic number.

It is an amenable number.

808144 is a deficient number, since it is larger than the sum of its proper divisors (788852).

808144 is a wasteful number, since it uses less digits than its factorization.

808144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014 (or 1008 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 808144 is about 898.9682975500. The cubic root of 808144 is about 93.1457229080.

The spelling of 808144 in words is "eight hundred eight thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 53 106 212 424 848 953 1906 3812 7624 15248 50509 101018 202036 404072 808144