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802225 = 5232089
BaseRepresentation
bin11000011110110110001
31111202110001
43003312301
5201132400
625110001
76550564
oct3036661
91452401
10802225
114a87a6
12328301
132211b8
1416c4db
1510ca6a
hexc3db1

802225 has 6 divisors (see below), whose sum is σ = 994790. Its totient is φ = 641760.

The previous prime is 802189. The next prime is 802231. The reversal of 802225 is 522208.

It can be written as a sum of positive squares in 3 ways, for example, as 6561 + 795664 = 81^2 + 892^2 .

It is not a de Polignac number, because 802225 - 213 = 794033 is a prime.

It is an Ulam number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 16020 + ... + 16069.

2802225 is an apocalyptic number.

It is an amenable number.

802225 is a deficient number, since it is larger than the sum of its proper divisors (192565).

802225 is a wasteful number, since it uses less digits than its factorization.

802225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32099 (or 32094 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 802225 is about 895.6701401744. The cubic root of 802225 is about 92.9177598009.

The spelling of 802225 in words is "eight hundred two thousand, two hundred twenty-five".

Divisors: 1 5 25 32089 160445 802225