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13999882 = 213538457
BaseRepresentation
bin110101011001…
…111100001010
3222100021020011
4311121330022
512040444012
61220022134
7226665661
oct65317412
928307204
1013999882
1179a2356
12483194a
132b92370
141c05dd8
1513681a7
hexd59f0a

13999882 has 8 divisors (see below), whose sum is σ = 22615236. Its totient is φ = 6461472.

The previous prime is 13999877. The next prime is 13999889. The reversal of 13999882 is 28899931.

It can be written as a sum of positive squares in 2 ways, for example, as 13830961 + 168921 = 3719^2 + 411^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13999889) 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, 269203 + ... + 269254.

Almost surely, 213999882 is an apocalyptic number.

13999882 is a deficient number, since it is larger than the sum of its proper divisors (8615354).

13999882 is a wasteful number, since it uses less digits than its factorization.

13999882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538472.

The product of its digits is 279936, while the sum is 49.

The square root of 13999882 is about 3741.6416183274. The cubic root of 13999882 is about 241.0135492804.

Adding to 13999882 its sum of digits (49), we get a palindrome (13999931).

The spelling of 13999882 in words is "thirteen million, nine hundred ninety-nine thousand, eight hundred eighty-two".

Divisors: 1 2 13 26 538457 1076914 6999941 13999882