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14215427 = 44332089
BaseRepresentation
bin110110001110…
…100100000011
3222202012220022
4312032210003
512114343202
61224404055
7231554252
oct66164403
928665808
1014215427
11802a296
12491662b
132c394c5
141c60799
1513abea2
hexd8e903

14215427 has 4 divisors (see below), whose sum is σ = 14247960. Its totient is φ = 14182896.

The previous prime is 14215387. The next prime is 14215459. The reversal of 14215427 is 72451241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72451241 = 222132621.

It is a cyclic number.

It is not a de Polignac number, because 14215427 - 28 = 14215171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14215396 and 14215405.

It is not an unprimeable number, because it can be changed into a prime (14215027) 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 3 ways as a sum of consecutive naturals, for example, 15602 + ... + 16487.

It is an arithmetic number, because the mean of its divisors is an integer number (3561990).

Almost surely, 214215427 is an apocalyptic number.

14215427 is a deficient number, since it is larger than the sum of its proper divisors (32533).

14215427 is an equidigital number, since it uses as much as digits as its factorization.

14215427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32532.

The product of its digits is 2240, while the sum is 26.

The square root of 14215427 is about 3770.3351309930. The cubic root of 14215427 is about 242.2441528819.

Adding to 14215427 its reverse (72451241), we get a palindrome (86666668).

The spelling of 14215427 in words is "fourteen million, two hundred fifteen thousand, four hundred twenty-seven".

Divisors: 1 443 32089 14215427