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13361020 = 225668051
BaseRepresentation
bin110010111101…
…111101111100
3221010210212121
4302331331330
511410023040
61154212324
7221365261
oct62757574
927123777
1013361020
1175a6372
1245840a4
1329ca63a
141abb268
15128dc4a
hexcbdf7c

13361020 has 12 divisors (see below), whose sum is σ = 28058184. Its totient is φ = 5344400.

The previous prime is 13361011. The next prime is 13361021. The reversal of 13361020 is 2016331.

It is a junction number, because it is equal to n+sod(n) for n = 13360985 and 13361003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13361021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334006 + ... + 334045.

It is an arithmetic number, because the mean of its divisors is an integer number (2338182).

Almost surely, 213361020 is an apocalyptic number.

13361020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13361020 is an abundant number, since it is smaller than the sum of its proper divisors (14697164).

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

13361020 is a wasteful number, since it uses less digits than its factorization.

13361020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668060 (or 668058 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 13361020 is about 3655.2729036284. The cubic root of 13361020 is about 237.2902376898.

Adding to 13361020 its reverse (2016331), we get a palindrome (15377351).

The spelling of 13361020 in words is "thirteen million, three hundred sixty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 668051 1336102 2672204 3340255 6680510 13361020