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13986884 = 2289101389
BaseRepresentation
bin110101010110…
…110001000100
3222022121101202
4311112301010
512040040014
61215442032
7226613042
oct65266104
928277352
1013986884
11799360a
124826318
132b89482
141c01392
1513643de
hexd56c44

13986884 has 24 divisors (see below), whose sum is σ = 25061400. Its totient is φ = 6828800.

The previous prime is 13986823. The next prime is 13986887. The reversal of 13986884 is 48868931.

It can be written as a sum of positive squares in 4 ways, for example, as 1932100 + 12054784 = 1390^2 + 3472^2 .

It is not an unprimeable number, because it can be changed into a prime (13986887) 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, 35762 + ... + 36150.

It is an arithmetic number, because the mean of its divisors is an integer number (1044225).

Almost surely, 213986884 is an apocalyptic number.

It is an amenable number.

13986884 is a deficient number, since it is larger than the sum of its proper divisors (11074516).

13986884 is a wasteful number, since it uses less digits than its factorization.

13986884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583 (or 581 counting only the distinct ones).

The product of its digits is 331776, while the sum is 47.

The square root of 13986884 is about 3739.9042768499. The cubic root of 13986884 is about 240.9389376012.

The spelling of 13986884 in words is "thirteen million, nine hundred eighty-six thousand, eight hundred eighty-four".

Divisors: 1 2 4 89 101 178 202 356 389 404 778 1556 8989 17978 34621 35956 39289 69242 78578 138484 157156 3496721 6993442 13986884