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1444105 = 51321709
BaseRepresentation
bin101100000100100001001
32201100221101
411200210021
5332202410
650541401
715163135
oct5404411
92640841
101444105
118a6a83
12597861
133b7400
142983c5
151d7d3a
hex160909

1444105 has 12 divisors (see below), whose sum is σ = 1877580. Its totient is φ = 1065792.

The previous prime is 1444103. The next prime is 1444109. The reversal of 1444105 is 5014441.

It can be written as a sum of positive squares in 6 ways, for example, as 501264 + 942841 = 708^2 + 971^2 .

It is not a de Polignac number, because 1444105 - 21 = 1444103 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1444103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10 + ... + 1699.

It is an arithmetic number, because the mean of its divisors is an integer number (156465).

21444105 is an apocalyptic number.

It is an amenable number.

1444105 is a deficient number, since it is larger than the sum of its proper divisors (433475).

1444105 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 8 representation: 1444105 = (5404411)8.

1444105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740 (or 1727 counting only the distinct ones).

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

The square root of 1444105 is about 1201.7091994322. The cubic root of 1444105 is about 113.0315259102.

Adding to 1444105 its reverse (5014441), we get a palindrome (6458546).

The spelling of 1444105 in words is "one million, four hundred forty-four thousand, one hundred five".

Divisors: 1 5 13 65 169 845 1709 8545 22217 111085 288821 1444105