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14780 = 225739
BaseRepresentation
bin11100110111100
3202021102
43212330
5433110
6152232
761043
oct34674
922242
1014780
1110117
128678
13695c
14555a
1545a5
hex39bc

14780 has 12 divisors (see below), whose sum is σ = 31080. Its totient is φ = 5904.

The previous prime is 14779. The next prime is 14783. The reversal of 14780 is 8741.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 739 = 14780 / (1 + 4 + 7 + 8 + 0).

It is a plaindrome in base 14 and base 16.

It is a nialpdrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350 + ... + 389.

It is an arithmetic number, because the mean of its divisors is an integer number (2590).

214780 is an apocalyptic number.

14780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14780 is an abundant number, since it is smaller than the sum of its proper divisors (16300).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15540).

14780 is a wasteful number, since it uses less digits than its factorization.

14780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 14780 is about 121.5730233234. The cubic root of 14780 is about 24.5409560697.

The spelling of 14780 in words is "fourteen thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 739 1478 2956 3695 7390 14780