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14322221 = 14539857
BaseRepresentation
bin110110101000…
…101000101101
3222221122101122
4312220220231
512131302341
61230550325
7232510514
oct66505055
928848348
1014322221
1180a2551
1249683a5
132c75cb4
141c8b67b
1513cd94b
hexda8a2d

14322221 has 4 divisors (see below), whose sum is σ = 14333532. Its totient is φ = 14310912.

The previous prime is 14322197. The next prime is 14322223. The reversal of 14322221 is 12222341.

14322221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12222341 = 67182423.

It can be written as a sum of positive squares in 2 ways, for example, as 10562500 + 3759721 = 3250^2 + 1939^2 .

It is a cyclic number.

It is not a de Polignac number, because 14322221 - 218 = 14060077 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 14322221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14322223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3476 + ... + 6381.

It is an arithmetic number, because the mean of its divisors is an integer number (3583383).

Almost surely, 214322221 is an apocalyptic number.

It is an amenable number.

14322221 is a deficient number, since it is larger than the sum of its proper divisors (11311).

14322221 is an equidigital number, since it uses as much as digits as its factorization.

14322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11310.

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

The square root of 14322221 is about 3784.4710330507. The cubic root of 14322221 is about 242.8492632639.

Adding to 14322221 its reverse (12222341), we get a palindrome (26544562).

The spelling of 14322221 in words is "fourteen million, three hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 1453 9857 14322221