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1330105 = 5726189
BaseRepresentation
bin101000100101110111001
32111120120011
411010232321
5320030410
644301521
714206600
oct5045671
92446504
101330105
11829367
125418a1
1337755a
14268a37
151b418a
hex144bb9

1330105 has 24 divisors (see below), whose sum is σ = 1908360. Its totient is φ = 887040.

The previous prime is 1330103. The next prime is 1330111. The reversal of 1330105 is 5010331.

It can be written as a sum of positive squares in 4 ways, for example, as 28224 + 1301881 = 168^2 + 1141^2 .

It is not a de Polignac number, because 1330105 - 21 = 1330103 is a prime.

It is a super-2 number, since 2×13301052 = 3538358622050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1330103) 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 23 ways as a sum of consecutive naturals, for example, 14901 + ... + 14989.

It is an arithmetic number, because the mean of its divisors is an integer number (79515).

21330105 is an apocalyptic number.

It is an amenable number.

1330105 is a deficient number, since it is larger than the sum of its proper divisors (578255).

1330105 is an equidigital number, since it uses as much as digits as its factorization.

1330105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 1330105 is about 1153.3017818420. The cubic root of 1330105 is about 109.9753388242.

Adding to 1330105 its reverse (5010331), we get a palindrome (6340436).

The spelling of 1330105 in words is "one million, three hundred thirty thousand, one hundred five".

Divisors: 1 5 7 35 49 61 89 245 305 427 445 623 2135 2989 3115 4361 5429 14945 21805 27145 38003 190015 266021 1330105