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13280 = 25583
BaseRepresentation
bin11001111100000
3200012212
43033200
5411110
6141252
753501
oct31740
920185
1013280
119a83
127828
136077
144ba8
153e05
hex33e0

13280 has 24 divisors (see below), whose sum is σ = 31752. Its totient is φ = 5248.

The previous prime is 13267. The next prime is 13291. The reversal of 13280 is 8231.

13280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 5.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119 + ... + 201.

It is an arithmetic number, because the mean of its divisors is an integer number (1323).

213280 is an apocalyptic number.

13280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15876).

13280 is an abundant number, since it is smaller than the sum of its proper divisors (18472).

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

13280 is an equidigital number, since it uses as much as digits as its factorization.

13280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 13280 is about 115.2388823271. The cubic root of 13280 is about 23.6809629509.

It can be divided in two parts, 132 and 80, that added together give a palindrome (212).

The spelling of 13280 in words is "thirteen thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 83 160 166 332 415 664 830 1328 1660 2656 3320 6640 13280