Search a number
-
+
10808180 = 2254391231
BaseRepresentation
bin101001001110…
…101101110100
3202100010000222
4221032231310
510231330210
61023353512
7160603505
oct51165564
922303028
1010808180
116112389
123752898
132315696
141614bac
15e37655
hexa4eb74

10808180 has 24 divisors (see below), whose sum is σ = 22767360. Its totient is φ = 4309920.

The previous prime is 10808129. The next prime is 10808191. The reversal of 10808180 is 8180801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8165 + ... + 9395.

It is an arithmetic number, because the mean of its divisors is an integer number (948640).

Almost surely, 210808180 is an apocalyptic number.

10808180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10808180 is an abundant number, since it is smaller than the sum of its proper divisors (11959180).

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

10808180 is a wasteful number, since it uses less digits than its factorization.

10808180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 10808180 is about 3287.5796568296. The cubic root of 10808180 is about 221.0976820899.

Adding to 10808180 its reverse (8180801), we get a palindrome (18988981).

The spelling of 10808180 in words is "ten million, eight hundred eight thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 439 878 1231 1756 2195 2462 4390 4924 6155 8780 12310 24620 540409 1080818 2161636 2702045 5404090 10808180