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12808160 = 25580051
BaseRepresentation
bin110000110110…
…111111100000
3220002201111022
4300312333200
511234330120
61134305012
7213603401
oct60667740
926081438
1012808160
117258a62
124358168
132865ac1
1419b59a8
1511d0025
hexc36fe0

12808160 has 24 divisors (see below), whose sum is σ = 30259656. Its totient is φ = 5123200.

The previous prime is 12808151. The next prime is 12808181. The reversal of 12808160 is 6180821.

It is a congruent number.

It is an unprimeable number.

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, 39866 + ... + 40185.

It is an arithmetic number, because the mean of its divisors is an integer number (1260819).

Almost surely, 212808160 is an apocalyptic number.

12808160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12808160 is an abundant number, since it is smaller than the sum of its proper divisors (17451496).

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

12808160 is an equidigital number, since it uses as much as digits as its factorization.

12808160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80066 (or 80058 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 12808160 is about 3578.8489769757. The cubic root of 12808160 is about 233.9711167993.

Adding to 12808160 its reverse (6180821), we get a palindrome (18988981).

The spelling of 12808160 in words is "twelve million, eight hundred eight thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 80051 160102 320204 400255 640408 800510 1280816 1601020 2561632 3202040 6404080 12808160