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14321321 = 72045903
BaseRepresentation
bin110110101000…
…011010101001
3222221121011022
4312220122221
512131240241
61230542225
7232505060
oct66503251
928847138
1014321321
1180a1903
124967975
132c75771
141c8b1d7
1513cd54b
hexda86a9

14321321 has 4 divisors (see below), whose sum is σ = 16367232. Its totient is φ = 12275412.

The previous prime is 14321311. The next prime is 14321353. The reversal of 14321321 is 12312341.

14321321 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 Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12312341 = 41300301.

It is a cyclic number.

It is not a de Polignac number, because 14321321 - 222 = 10127017 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 14321321.

It is not an unprimeable number, because it can be changed into a prime (14321311) 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, 1022945 + ... + 1022958.

It is an arithmetic number, because the mean of its divisors is an integer number (4091808).

Almost surely, 214321321 is an apocalyptic number.

It is an amenable number.

14321321 is a deficient number, since it is larger than the sum of its proper divisors (2045911).

14321321 is an equidigital number, since it uses as much as digits as its factorization.

14321321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045910.

The product of its digits is 144, while the sum is 17.

The square root of 14321321 is about 3784.3521242083. The cubic root of 14321321 is about 242.8441763220.

Adding to 14321321 its reverse (12312341), we get a palindrome (26633662).

The spelling of 14321321 in words is "fourteen million, three hundred twenty-one thousand, three hundred twenty-one".

Divisors: 1 7 2045903 14321321