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80120 = 2352003
BaseRepresentation
bin10011100011111000
311001220102
4103203320
510030440
61414532
7452405
oct234370
9131812
1080120
1155217
123a448
132a611
14212ac
1518b15
hex138f8

80120 has 16 divisors (see below), whose sum is σ = 180360. Its totient is φ = 32032.

The previous prime is 80111. The next prime is 80141. The reversal of 80120 is 2108.

80120 is a modest number, since divided by 120 gives 80 as remainder.

It is a congruent number.

It is an unprimeable number.

80120 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 962 + ... + 1041.

280120 is an apocalyptic number.

It is an amenable number.

80120 is an abundant number, since it is smaller than the sum of its proper divisors (100240).

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 (90180).

80120 is a wasteful number, since it uses less digits than its factorization.

80120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014 (or 2010 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 80120 is about 283.0547650191. The cubic root of 80120 is about 43.1102273843.

Adding to 80120 its reverse (2108), we get a palindrome (82228).

The spelling of 80120 in words is "eighty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 2003 4006 8012 10015 16024 20030 40060 80120