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14982881 = 61245621
BaseRepresentation
bin111001001001…
…111011100001
31001012012122112
4321021323201
512313423011
61253045105
7241231604
oct71117341
931165575
1014982881
118503951
125026795
133147914
141dc033b
1514ae58b
hexe49ee1

14982881 has 4 divisors (see below), whose sum is σ = 15228564. Its totient is φ = 14737200.

The previous prime is 14982871. The next prime is 14982893. The reversal of 14982881 is 18828941.

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 2202256 + 12780625 = 1484^2 + 3575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14982881 is a prime.

It is a super-2 number, since 2×149828812 = 448973446120322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14982841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122750 + ... + 122871.

It is an arithmetic number, because the mean of its divisors is an integer number (3807141).

Almost surely, 214982881 is an apocalyptic number.

It is an amenable number.

14982881 is a deficient number, since it is larger than the sum of its proper divisors (245683).

14982881 is an equidigital number, since it uses as much as digits as its factorization.

14982881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245682.

The product of its digits is 36864, while the sum is 41.

The square root of 14982881 is about 3870.7726618855. The cubic root of 14982881 is about 246.5273515313.

The spelling of 14982881 in words is "fourteen million, nine hundred eighty-two thousand, eight hundred eighty-one".

Divisors: 1 61 245621 14982881