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101080 = 2357192
BaseRepresentation
bin11000101011011000
312010122201
4120223120
511213310
62055544
7600460
oct305330
9163581
10101080
1169a41
124a5b4
1337015
1428ba0
151ee3a
hex18ad8

101080 has 48 divisors (see below), whose sum is σ = 274320. Its totient is φ = 32832.

The previous prime is 101063. The next prime is 101081. The reversal of 101080 is 80101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101081) by changing a digit.

101080 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 11 ways as a sum of consecutive naturals, for example, 5311 + ... + 5329.

It is an arithmetic number, because the mean of its divisors is an integer number (5715).

2101080 is an apocalyptic number.

101080 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 101080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137160).

101080 is an abundant number, since it is smaller than the sum of its proper divisors (173240).

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

101080 is a wasteful number, since it uses less digits than its factorization.

101080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 101080 is about 317.9308100829. The cubic root of 101080 is about 46.5823875677.

Adding to 101080 its reverse (80101), we get a palindrome (181181).

The spelling of 101080 in words is "one hundred one thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 19 20 28 35 38 40 56 70 76 95 133 140 152 190 266 280 361 380 532 665 722 760 1064 1330 1444 1805 2527 2660 2888 3610 5054 5320 7220 10108 12635 14440 20216 25270 50540 101080