Search a number
-
+
2108180 = 225234583
BaseRepresentation
bin1000000010101100010100
310222002212202
420002230110
51014430210
6113104032
723630204
oct10025424
93862782
102108180
11120a9a8
12858018
1358a759
143cc404
152b99a5
hex202b14

2108180 has 24 divisors (see below), whose sum is σ = 4620672. Its totient is φ = 806432.

The previous prime is 2108177. The next prime is 2108231. The reversal of 2108180 is 818012.

2108180 = T3 + T4 + ... + T232.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1832 + ... + 2751.

It is an arithmetic number, because the mean of its divisors is an integer number (192528).

22108180 is an apocalyptic number.

2108180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2108180 is an abundant number, since it is smaller than the sum of its proper divisors (2512492).

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

2108180 is a wasteful number, since it uses less digits than its factorization.

2108180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4615 (or 4613 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 2108180 is about 1451.9572996476. The cubic root of 2108180 is about 128.2239730999.

The spelling of 2108180 in words is "two million, one hundred eight thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 4583 9166 18332 22915 45830 91660 105409 210818 421636 527045 1054090 2108180