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14280289 = 171018317
BaseRepresentation
bin110110011110…
…011001100001
3222212111212121
4312132121201
512123432124
61230024241
7232244332
oct66363141
928774777
1014280289
118073aa1
124948081
132c5cb9a
141c7a289
1513c12e4
hexd9e661

14280289 has 8 divisors (see below), whose sum is σ = 15271848. Its totient is φ = 13305600.

The previous prime is 14280271. The next prime is 14280307. The reversal of 14280289 is 98208241.

It is an interprime number because it is at equal distance from previous prime (14280271) and next prime (14280307).

It can be written as a sum of positive squares in 4 ways, for example, as 12006225 + 2274064 = 3465^2 + 1508^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14280289 - 215 = 14247521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14280239) 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 7 ways as a sum of consecutive naturals, for example, 2442 + ... + 5875.

It is an arithmetic number, because the mean of its divisors is an integer number (1908981).

Almost surely, 214280289 is an apocalyptic number.

It is an amenable number.

14280289 is a deficient number, since it is larger than the sum of its proper divisors (991559).

14280289 is a wasteful number, since it uses less digits than its factorization.

14280289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8435.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 14280289 is about 3778.9269640997. The cubic root of 14280289 is about 242.6120302853.

The spelling of 14280289 in words is "fourteen million, two hundred eighty thousand, two hundred eighty-nine".

Divisors: 1 17 101 1717 8317 141389 840017 14280289