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14445311 = 23628057
BaseRepresentation
bin110111000110…
…101011111111
31000011220020112
4313012223333
512144222221
61233340235
7233532416
oct67065377
930156215
1014445311
118176a81
124a0767b
132cba02a
141cc047d
15140515b
hexdc6aff

14445311 has 4 divisors (see below), whose sum is σ = 15073392. Its totient is φ = 13817232.

The previous prime is 14445307. The next prime is 14445317. The reversal of 14445311 is 11354441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11354441 = 71622063.

It is a cyclic number.

It is not a de Polignac number, because 14445311 - 22 = 14445307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 628057 = 14445311 / (1 + 4 + 4 + 4 + 5 + 3 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14445317) 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, 314006 + ... + 314051.

It is an arithmetic number, because the mean of its divisors is an integer number (3768348).

Almost surely, 214445311 is an apocalyptic number.

14445311 is a deficient number, since it is larger than the sum of its proper divisors (628081).

14445311 is an equidigital number, since it uses as much as digits as its factorization.

14445311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628080.

The product of its digits is 960, while the sum is 23.

The square root of 14445311 is about 3800.6987515456. The cubic root of 14445311 is about 243.5429891760.

Adding to 14445311 its reverse (11354441), we get a palindrome (25799752).

The spelling of 14445311 in words is "fourteen million, four hundred forty-five thousand, three hundred eleven".

Divisors: 1 23 628057 14445311