Search a number
-
+
130080 = 2535271
BaseRepresentation
bin11111110000100000
320121102210
4133300200
513130310
62442120
71051146
oct376040
9217383
10130080
1189805
1263340
1347292
1435596
1528820
hex1fc20

130080 has 48 divisors (see below), whose sum is σ = 411264. Its totient is φ = 34560.

The previous prime is 130079. The next prime is 130087. The reversal of 130080 is 80031.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (130087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345 + ... + 615.

It is an arithmetic number, because the mean of its divisors is an integer number (8568).

2130080 is an apocalyptic number.

130080 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 130080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205632).

130080 is an abundant number, since it is smaller than the sum of its proper divisors (281184).

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

130080 is a wasteful number, since it uses less digits than its factorization.

130080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 130080 is about 360.6660505232. Note that the first 3 decimals coincide. The cubic root of 130080 is about 50.6683594387.

The spelling of 130080 in words is "one hundred thirty thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 271 480 542 813 1084 1355 1626 2168 2710 3252 4065 4336 5420 6504 8130 8672 10840 13008 16260 21680 26016 32520 43360 65040 130080