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4400105 = 5880021
BaseRepresentation
bin10000110010001111101001
322021112210212
4100302033221
52111300410
6234150505
752254203
oct20621751
98245725
104400105
112535956
121582435
13bb0a18
14827773
155bdb05
hex4323e9

4400105 has 4 divisors (see below), whose sum is σ = 5280132. Its totient is φ = 3520080.

The previous prime is 4400101. The next prime is 4400111. The reversal of 4400105 is 5010044.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1752976 + 2647129 = 1324^2 + 1627^2 .

It is not a de Polignac number, because 4400105 - 22 = 4400101 is a prime.

It is a super-2 number, since 2×44001052 = 38721848022050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4400105.

It is not an unprimeable number, because it can be changed into a prime (4400101) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 440006 + ... + 440015.

It is an arithmetic number, because the mean of its divisors is an integer number (1320033).

Almost surely, 24400105 is an apocalyptic number.

It is an amenable number.

4400105 is a deficient number, since it is larger than the sum of its proper divisors (880027).

4400105 is an equidigital number, since it uses as much as digits as its factorization.

4400105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880026.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 4400105 is about 2097.6427245840. The cubic root of 4400105 is about 163.8655575754.

Adding to 4400105 its reverse (5010044), we get a palindrome (9410149).

The spelling of 4400105 in words is "four million, four hundred thousand, one hundred five".

Divisors: 1 5 880021 4400105