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11907065 = 52381413
BaseRepresentation
bin101101011010…
…111111111001
3211101221102102
4231122333321
511022011230
61103113145
7203131322
oct55327771
924357372
1011907065
1167a2a55
123ba27b5
13260b901
14181d449
1510a3045
hexb5aff9

11907065 has 4 divisors (see below), whose sum is σ = 14288484. Its totient is φ = 9525648.

The previous prime is 11907061. The next prime is 11907073. The reversal of 11907065 is 56070911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56070911 = 134313147.

It can be written as a sum of positive squares in 2 ways, for example, as 8620096 + 3286969 = 2936^2 + 1813^2 .

It is a cyclic number.

It is not a de Polignac number, because 11907065 - 22 = 11907061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11907061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1190702 + ... + 1190711.

It is an arithmetic number, because the mean of its divisors is an integer number (3572121).

Almost surely, 211907065 is an apocalyptic number.

It is an amenable number.

11907065 is a deficient number, since it is larger than the sum of its proper divisors (2381419).

11907065 is an equidigital number, since it uses as much as digits as its factorization.

11907065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381418.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 11907065 is about 3450.6615307793. The cubic root of 11907065 is about 228.3502938485.

Adding to 11907065 its reverse (56070911), we get a palindrome (67977976).

The spelling of 11907065 in words is "eleven million, nine hundred seven thousand, sixty-five".

Divisors: 1 5 2381413 11907065