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13981060 = 225699053
BaseRepresentation
bin110101010101…
…010110000100
3222022022102001
4311111112010
512034343220
61215355044
7226560052
oct65252604
928268361
1013981060
11798a1a5
124822a84
132b86922
141bdd1d2
15136280a
hexd55584

13981060 has 12 divisors (see below), whose sum is σ = 29360268. Its totient is φ = 5592416.

The previous prime is 13981027. The next prime is 13981111. The reversal of 13981060 is 6018931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8561476 + 5419584 = 2926^2 + 2328^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 349507 + ... + 349546.

It is an arithmetic number, because the mean of its divisors is an integer number (2446689).

Almost surely, 213981060 is an apocalyptic number.

13981060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13981060 is an abundant number, since it is smaller than the sum of its proper divisors (15379208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13981060 is a wasteful number, since it uses less digits than its factorization.

13981060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699062 (or 699060 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 13981060 is about 3739.1255662253. The cubic root of 13981060 is about 240.9054914292.

Adding to 13981060 its reverse (6018931), we get a palindrome (19999991).

The spelling of 13981060 in words is "thirteen million, nine hundred eighty-one thousand, sixty".

Divisors: 1 2 4 5 10 20 699053 1398106 2796212 3495265 6990530 13981060