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13445327 = 71920761
BaseRepresentation
bin110011010010…
…100011001111
3221022002112002
4303102203033
511420222302
61200102515
7222166130
oct63224317
927262462
1013445327
117653745
124604a3b
132a29b1c
141addc87
1512a8c02
hexcd28cf

13445327 has 4 divisors (see below), whose sum is σ = 15366096. Its totient is φ = 11524560.

The previous prime is 13445321. The next prime is 13445347. The reversal of 13445327 is 72354431.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13445327 is a prime.

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 13445327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 960374 + ... + 960387.

It is an arithmetic number, because the mean of its divisors is an integer number (3841524).

Almost surely, 213445327 is an apocalyptic number.

13445327 is a deficient number, since it is larger than the sum of its proper divisors (1920769).

13445327 is an equidigital number, since it uses as much as digits as its factorization.

13445327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920768.

The product of its digits is 10080, while the sum is 29.

The square root of 13445327 is about 3666.7870131765. The cubic root of 13445327 is about 237.7882859378.

Adding to 13445327 its reverse (72354431), we get a palindrome (85799758).

The spelling of 13445327 in words is "thirteen million, four hundred forty-five thousand, three hundred twenty-seven".

Divisors: 1 7 1920761 13445327