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14318281 = 137104513
BaseRepresentation
bin110110100111…
…101011001001
3222221102222201
4312213223021
512131141111
61230520201
7232463155
oct66475311
928842881
1014318281
11809a59a
124966061
132c74273
141c8a065
1513cc6c1
hexda7ac9

14318281 has 4 divisors (see below), whose sum is σ = 14422932. Its totient is φ = 14213632.

The previous prime is 14318263. The next prime is 14318303. The reversal of 14318281 is 18281341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4583881 + 9734400 = 2141^2 + 3120^2 .

It is a cyclic number.

It is not a de Polignac number, because 14318281 - 29 = 14317769 is a prime.

It is a super-2 number, since 2×143182812 = 410026341589922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14318201) 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, 52120 + ... + 52393.

It is an arithmetic number, because the mean of its divisors is an integer number (3605733).

Almost surely, 214318281 is an apocalyptic number.

It is an amenable number.

14318281 is a deficient number, since it is larger than the sum of its proper divisors (104651).

14318281 is a wasteful number, since it uses less digits than its factorization.

14318281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104650.

The product of its digits is 1536, while the sum is 28.

The square root of 14318281 is about 3783.9504489356. The cubic root of 14318281 is about 242.8269921871.

The spelling of 14318281 in words is "fourteen million, three hundred eighteen thousand, two hundred eighty-one".

Divisors: 1 137 104513 14318281