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14428161 = 3211213249
BaseRepresentation
bin110111000010…
…100000000001
31000011000201100
4313002200001
512143200121
61233125013
7233431416
oct67024001
930130640
1014428161
118165100
1249b9769
132cb2297
141cb810d
151400026
hexdc2801

14428161 has 18 divisors (see below), whose sum is σ = 22909250. Its totient is φ = 8743680.

The previous prime is 14428157. The next prime is 14428217. The reversal of 14428161 is 16182441.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10890000 + 3538161 = 3300^2 + 1881^2 .

It is not a de Polignac number, because 14428161 - 22 = 14428157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14428111) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5536 + ... + 7713.

Almost surely, 214428161 is an apocalyptic number.

14428161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14428161 is a deficient number, since it is larger than the sum of its proper divisors (8481089).

14428161 is a wasteful number, since it uses less digits than its factorization.

14428161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13277 (or 13263 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 14428161 is about 3798.4419174182. The cubic root of 14428161 is about 243.4465699691.

The spelling of 14428161 in words is "fourteen million, four hundred twenty-eight thousand, one hundred sixty-one".

Divisors: 1 3 9 11 33 99 121 363 1089 13249 39747 119241 145739 437217 1311651 1603129 4809387 14428161