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14281147 = 25156897
BaseRepresentation
bin110110011110…
…100110111011
3222212120001101
4312132212323
512123444042
61230032231
7232246666
oct66364673
928776041
1014281147
118074701
124948677
132c603aa
141c7a6dd
1513c16b7
hexd9e9bb

14281147 has 4 divisors (see below), whose sum is σ = 14338296. Its totient is φ = 14224000.

The previous prime is 14281133. The next prime is 14281151. The reversal of 14281147 is 74118241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74118241 = 312390911.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14281147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14281177) 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, 28198 + ... + 28699.

It is an arithmetic number, because the mean of its divisors is an integer number (3584574).

Almost surely, 214281147 is an apocalyptic number.

14281147 is a deficient number, since it is larger than the sum of its proper divisors (57149).

14281147 is an equidigital number, since it uses as much as digits as its factorization.

14281147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57148.

The product of its digits is 1792, while the sum is 28.

The square root of 14281147 is about 3779.0404866844. The cubic root of 14281147 is about 242.6168891261.

Adding to 14281147 its reverse (74118241), we get a palindrome (88399388).

The spelling of 14281147 in words is "fourteen million, two hundred eighty-one thousand, one hundred forty-seven".

Divisors: 1 251 56897 14281147