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14043221 = 29895441
BaseRepresentation
bin110101100100…
…100001010101
3222102110200022
4311210201111
512043340341
61220554525
7230236223
oct65444125
928373608
1014043221
117a21975
124852a45
132ba8cca
141c17b13
151375e4b
hexd64855

14043221 has 8 divisors (see below), whose sum is σ = 14693400. Its totient is φ = 13404160.

The previous prime is 14043203. The next prime is 14043269. The reversal of 14043221 is 12234041.

It can be written as a sum of positive squares in 4 ways, for example, as 1716100 + 12327121 = 1310^2 + 3511^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14043221 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 14043221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14243221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140 + ... + 5301.

It is an arithmetic number, because the mean of its divisors is an integer number (1836675).

Almost surely, 214043221 is an apocalyptic number.

It is an amenable number.

14043221 is a deficient number, since it is larger than the sum of its proper divisors (650179).

14043221 is an equidigital number, since it uses as much as digits as its factorization.

14043221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5559.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 14043221 is about 3747.4285850433. The cubic root of 14043221 is about 241.2619924775.

Adding to 14043221 its reverse (12234041), we get a palindrome (26277262).

The spelling of 14043221 in words is "fourteen million, forty-three thousand, two hundred twenty-one".

Divisors: 1 29 89 2581 5441 157789 484249 14043221