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14006321 = 72000903
BaseRepresentation
bin110101011011…
…100000110001
3222100121001122
4311123200301
512041200241
61220112025
7230023520
oct65334061
928317048
1014006321
1179a717a
124835615
132b95284
141c084b7
15136a04b
hexd5b831

14006321 has 4 divisors (see below), whose sum is σ = 16007232. Its totient is φ = 12005412.

The previous prime is 14006309. The next prime is 14006339. The reversal of 14006321 is 12360041.

14006321 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: 12360041 = 31398711.

It is a cyclic number.

It is not a de Polignac number, because 14006321 - 222 = 9812017 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 14006321.

It is not an unprimeable number, because it can be changed into a prime (14006341) 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, 1000445 + ... + 1000458.

It is an arithmetic number, because the mean of its divisors is an integer number (4001808).

Almost surely, 214006321 is an apocalyptic number.

It is an amenable number.

14006321 is a deficient number, since it is larger than the sum of its proper divisors (2000911).

14006321 is an equidigital number, since it uses as much as digits as its factorization.

14006321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000910.

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

The square root of 14006321 is about 3742.5019706074. The cubic root of 14006321 is about 241.0504936009.

Adding to 14006321 its reverse (12360041), we get a palindrome (26366362).

The spelling of 14006321 in words is "fourteen million, six thousand, three hundred twenty-one".

Divisors: 1 7 2000903 14006321