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14981913 = 3217181541
BaseRepresentation
bin111001001001…
…101100011001
31001012011022200
4321021230121
512313410123
61253040413
7241226022
oct71115431
931164280
1014981913
118503151
125026109
13314734b
141dbdc49
1514ae143
hexe49b19

14981913 has 24 divisors (see below), whose sum is σ = 23082696. Its totient is φ = 9331200.

The previous prime is 14981873. The next prime is 14981917. The reversal of 14981913 is 31918941.

14981913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 328329 + 14653584 = 573^2 + 3828^2 .

It is not a de Polignac number, because 14981913 - 212 = 14977817 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14981917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27423 + ... + 27963.

It is an arithmetic number, because the mean of its divisors is an integer number (961779).

Almost surely, 214981913 is an apocalyptic number.

It is an amenable number.

14981913 is a deficient number, since it is larger than the sum of its proper divisors (8100783).

14981913 is a wasteful number, since it uses less digits than its factorization.

14981913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 742 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 14981913 is about 3870.6476202310. The cubic root of 14981913 is about 246.5220422806.

The spelling of 14981913 in words is "fourteen million, nine hundred eighty-one thousand, nine hundred thirteen".

Divisors: 1 3 9 17 51 153 181 541 543 1623 1629 3077 4869 9197 9231 27591 27693 82773 97921 293763 881289 1664657 4993971 14981913