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4428901 = 6766103
BaseRepresentation
bin10000111001010001100101
322100000022101
4100321101211
52113211101
6234532101
752434151
oct20712145
98300271
104428901
112555554
121597031
13bc0b69
14834061
155c7401
hex439465

4428901 has 4 divisors (see below), whose sum is σ = 4495072. Its totient is φ = 4362732.

The previous prime is 4428899. The next prime is 4428911. The reversal of 4428901 is 1098244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4428901 - 21 = 4428899 is a prime.

It is a Duffinian number.

4428901 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4428901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4428911) 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, 32985 + ... + 33118.

It is an arithmetic number, because the mean of its divisors is an integer number (1123768).

Almost surely, 24428901 is an apocalyptic number.

It is an amenable number.

4428901 is a deficient number, since it is larger than the sum of its proper divisors (66171).

4428901 is an equidigital number, since it uses as much as digits as its factorization.

4428901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66170.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 4428901 is about 2104.4954264621. The cubic root of 4428901 is about 164.2222472642. Note that the first 4 decimals are identical.

It can be divided in two parts, 4428 and 901, that added together give a square (5329 = 732).

The spelling of 4428901 in words is "four million, four hundred twenty-eight thousand, nine hundred one".

Divisors: 1 67 66103 4428901