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4384225 = 521571117
BaseRepresentation
bin10000101110010111100001
322020202000201
4100232113201
52110243400
6233545201
752156666
oct20562741
98222021
104384225
112524a2a
121575201
13ba6721
14821a6d
155b906a
hex42e5e1

4384225 has 12 divisors (see below), whose sum is σ = 5475964. Its totient is φ = 3481920.

The previous prime is 4384189. The next prime is 4384243. The reversal of 4384225 is 5224834.

It can be written as a sum of positive squares in 6 ways, for example, as 1140624 + 3243601 = 1068^2 + 1801^2 .

It is not a de Polignac number, because 4384225 - 27 = 4384097 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

4384225 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4384193 and 4384202.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 3367 + ... + 4483.

Almost surely, 24384225 is an apocalyptic number.

It is an amenable number.

4384225 is a deficient number, since it is larger than the sum of its proper divisors (1091739).

4384225 is a wasteful number, since it uses less digits than its factorization.

4384225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284 (or 1279 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 4384225 is about 2093.8541018896. The cubic root of 4384225 is about 163.6681894233.

The spelling of 4384225 in words is "four million, three hundred eighty-four thousand, two hundred twenty-five".

Divisors: 1 5 25 157 785 1117 3925 5585 27925 175369 876845 4384225