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14228389 = 72032627
BaseRepresentation
bin110110010001…
…101110100101
3222202212200101
4312101232211
512120302024
61224544101
7231640120
oct66215645
928685611
1014228389
118038aaa
124922031
132c42386
141c653b7
1513b0c44
hexd91ba5

14228389 has 4 divisors (see below), whose sum is σ = 16261024. Its totient is φ = 12195756.

The previous prime is 14228377. The next prime is 14228393. The reversal of 14228389 is 98382241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14228389 - 27 = 14228261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14228989) 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, 1016307 + ... + 1016320.

It is an arithmetic number, because the mean of its divisors is an integer number (4065256).

Almost surely, 214228389 is an apocalyptic number.

It is an amenable number.

14228389 is a deficient number, since it is larger than the sum of its proper divisors (2032635).

14228389 is an equidigital number, since it uses as much as digits as its factorization.

14228389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032634.

The product of its digits is 27648, while the sum is 37.

The square root of 14228389 is about 3772.0536846657. The cubic root of 14228389 is about 242.3177587099.

The spelling of 14228389 in words is "fourteen million, two hundred twenty-eight thousand, three hundred eighty-nine".

Divisors: 1 7 2032627 14228389