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108186 = 23131973
BaseRepresentation
bin11010011010011010
312111101220
4122122122
511430221
62152510
7630261
oct323232
9174356
10108186
1174311
1252736
133a320
142b5d8
15220c6
hex1a69a

108186 has 32 divisors (see below), whose sum is σ = 248640. Its totient is φ = 31104.

The previous prime is 108179. The next prime is 108187. The reversal of 108186 is 681801.

108186 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

108186 is an undulating number in base 8.

It is a Curzon number.

It is a nialpdrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 108186.

It is not an unprimeable number, because it can be changed into a prime (108187) by changing a digit.

108186 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 15 ways as a sum of consecutive naturals, for example, 1446 + ... + 1518.

It is an arithmetic number, because the mean of its divisors is an integer number (7770).

2108186 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124320).

108186 is an abundant number, since it is smaller than the sum of its proper divisors (140454).

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

108186 is a wasteful number, since it uses less digits than its factorization.

108186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 108186 is about 328.9164027530. The cubic root of 108186 is about 47.6493544534.

Adding to 108186 its reverse (681801), we get a palindrome (789987).

The spelling of 108186 in words is "one hundred eight thousand, one hundred eighty-six".

Divisors: 1 2 3 6 13 19 26 38 39 57 73 78 114 146 219 247 438 494 741 949 1387 1482 1898 2774 2847 4161 5694 8322 18031 36062 54093 108186