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14228869 is a prime number
BaseRepresentation
bin110110010001…
…110110000101
3222202220100011
4312101312011
512120310434
61224550221
7231641404
oct66216605
928686304
1014228869
1180393a6
124922371
132c42665
141c6563b
1513b0e64
hexd91d85

14228869 has 2 divisors, whose sum is σ = 14228870. Its totient is φ = 14228868.

The previous prime is 14228867. The next prime is 14228873. The reversal of 14228869 is 96882241.

14228869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10484644 + 3744225 = 3238^2 + 1935^2 .

It is a cyclic number.

It is not a de Polignac number, because 14228869 - 21 = 14228867 is a prime.

It is a super-2 number, since 2×142288692 = 404921426038322, which contains 22 as substring.

Together with 14228867, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14228867) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7114434 + 7114435.

It is an arithmetic number, because the mean of its divisors is an integer number (7114435).

Almost surely, 214228869 is an apocalyptic number.

It is an amenable number.

14228869 is a deficient number, since it is larger than the sum of its proper divisors (1).

14228869 is an equidigital number, since it uses as much as digits as its factorization.

14228869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 40.

The square root of 14228869 is about 3772.1173099468. The cubic root of 14228869 is about 242.3204835725.

The spelling of 14228869 in words is "fourteen million, two hundred twenty-eight thousand, eight hundred sixty-nine".