Search a number
-
+
14213447 = 67212141
BaseRepresentation
bin110110001110…
…000101000111
3222202010011222
4312032011013
512114312242
61224350555
7231545423
oct66160507
928663158
1014213447
118028856
12491545b
132c38631
141c5db83
1513ab5d2
hexd8e147

14213447 has 4 divisors (see below), whose sum is σ = 14425656. Its totient is φ = 14001240.

The previous prime is 14213431. The next prime is 14213449. The reversal of 14213447 is 74431241.

14213447 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.

It is a cyclic number.

It is not a de Polignac number, because 14213447 - 24 = 14213431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14213449) 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, 106004 + ... + 106137.

It is an arithmetic number, because the mean of its divisors is an integer number (3606414).

Almost surely, 214213447 is an apocalyptic number.

14213447 is a deficient number, since it is larger than the sum of its proper divisors (212209).

14213447 is an equidigital number, since it uses as much as digits as its factorization.

14213447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212208.

The product of its digits is 2688, while the sum is 26.

The square root of 14213447 is about 3770.0725457211. The cubic root of 14213447 is about 242.2329053433.

Adding to 14213447 its reverse (74431241), we get a palindrome (88644688).

The spelling of 14213447 in words is "fourteen million, two hundred thirteen thousand, four hundred forty-seven".

Divisors: 1 67 212141 14213447