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16880 = 245211
BaseRepresentation
bin100000111110000
3212011012
410013300
51020010
6210052
7100133
oct40760
925135
1016880
1111756
129928
1378b6
14621a
155005
hex41f0

16880 has 20 divisors (see below), whose sum is σ = 39432. Its totient is φ = 6720.

The previous prime is 16879. The next prime is 16883. The reversal of 16880 is 8861.

16880 is nontrivially palindromic in base 15.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16883) 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, 26 + ... + 185.

216880 is an apocalyptic number.

16880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16880 is an abundant number, since it is smaller than the sum of its proper divisors (22552).

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 (19716).

16880 is a wasteful number, since it uses less digits than its factorization.

16880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 16880 is about 129.9230541513. The cubic root of 16880 is about 25.6521722477.

The spelling of 16880 in words is "sixteen thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 211 422 844 1055 1688 2110 3376 4220 8440 16880