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14182981 = 176131361
BaseRepresentation
bin110110000110…
…101001000101
3222200120101121
4312012221011
512112323411
61223553541
7231360541
oct66065105
928616347
1014182981
11800797a
1248bb8b1
132c277c7
141c52a21
1513a2571
hexd86a45

14182981 has 8 divisors (see below), whose sum is σ = 15052824. Its totient is φ = 13317120.

The previous prime is 14182967. The next prime is 14183003. The reversal of 14182981 is 18928141.

It can be written as a sum of positive squares in 4 ways, for example, as 225 + 14182756 = 15^2 + 3766^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14182981 - 213 = 14174789 is a prime.

It is a super-2 number, since 2×141829812 = 402313900092722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14182381) 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 7 ways as a sum of consecutive naturals, for example, 9741 + ... + 11101.

It is an arithmetic number, because the mean of its divisors is an integer number (1881603).

Almost surely, 214182981 is an apocalyptic number.

It is an amenable number.

14182981 is a deficient number, since it is larger than the sum of its proper divisors (869843).

14182981 is a wasteful number, since it uses less digits than its factorization.

14182981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991.

The product of its digits is 4608, while the sum is 34.

The square root of 14182981 is about 3766.0298724253. The cubic root of 14182981 is about 242.0597091015.

The spelling of 14182981 in words is "fourteen million, one hundred eighty-two thousand, nine hundred eighty-one".

Divisors: 1 17 613 1361 10421 23137 834293 14182981