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13683550 = 2521032657
BaseRepresentation
bin110100001100…
…101101011110
3221202012022011
4310030231132
512000333200
61205141434
7224210506
oct64145536
927665264
1013683550
1177a6721
1246ba87a
132ab139a
141b62a06
1513045ba
hexd0cb5e

13683550 has 24 divisors (see below), whose sum is σ = 25708176. Its totient is φ = 5418240.

The previous prime is 13683547. The next prime is 13683559. The reversal of 13683550 is 5538631.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13683559) 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 11 ways as a sum of consecutive naturals, for example, 3822 + ... + 6478.

It is an arithmetic number, because the mean of its divisors is an integer number (1071174).

Almost surely, 213683550 is an apocalyptic number.

13683550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13683550 is a deficient number, since it is larger than the sum of its proper divisors (12024626).

13683550 is a wasteful number, since it uses less digits than its factorization.

13683550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772 (or 2767 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 13683550 is about 3699.1282756887. The cubic root of 13683550 is about 239.1844423948.

The spelling of 13683550 in words is "thirteen million, six hundred eighty-three thousand, five hundred fifty".

Divisors: 1 2 5 10 25 50 103 206 515 1030 2575 2657 5150 5314 13285 26570 66425 132850 273671 547342 1368355 2736710 6841775 13683550