18981105 is an odd 8-digits composite number following 18981104
and preceding 18981106 . In scientific notation, it is written as 1.8981105 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 8494080 positive integers (up to 18981105) that are relatively prime to 18981105.
18981105 has 8 divisors, whose sum is 20567400
The reverse of 18981105 is 50118981
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighteen million nine hundred eighty-one thousand one hundred five
Scientific notation
1.8981105 × 10^7
Engineering notation
1.8981105 × 10^6
Prime Factorization
165 × 13 × 8849
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18981105
Product of the distinct prime numbers
The prime factorization of 18981105 is 165 × 13 × 8849.
Since it has a total of 3 prime factors.
10 , 1 , 60 , 19 , 877 , 925 , 3709 , 3798 , 57398 , 81693 , 508130 , 701473 , 7035649 , 1402839 , 25216652 , 42858125 , 276414761 , 179196533 , 2229123073 , 1338608540
n×2
37962210
n×3
56943315
n×4
75924420
n×5
94905525
n÷2
9490552.5
n÷3
6327035
n÷3
4745276.25
n÷5
3796221
n2
360282347021025
n3
6.8385570584525E+21
n4
1.2980336957498E+29
n5
2.4638113872565E+36
2 √n
4356.73099927
3 √n
266.75168035992
4 √n
66.005537640943
5 √n
28.553825317409
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18981104
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18981105 can be divided by 8 positive divisors.
The sum of these divisors (counting 18981105) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011010000011110001
3
Ternary
1022201100011220
4
Quaternary
1020122003301
5
Quinary
14324343410
6
Senary
1514455253
8
Octal
110320361
10
Decimal
18981105
12
Duodecimal
6434529
16
Hexadecimal
121a0f1
20
Vigesimal
5iccf5
36
Base36
batwx
md5
54c1a05dfce6129c9b9e96a2db438a46
sha1
83a1958d5765e18a9772216da748c4d23108b3fb
sha256
d71ddfed21d41208006572e59699789427b9a0ced766b15167735f956b438f1c
sha512
5bc38f305d096d559dde05c66d9fc188906f3382585715eb92f8f134517d0ce22e03128ef62de23f56f6452738330a687ffbcb0a8115beaf4f2ae7b5835bb0a7
ripemd-160
b55b406e038902ad954063e717c62d21ced9c679
Diameter
37962210
Circumference
119261800.05003
Area
1.1318603746193E+15
Volume
2.8645280821319E+22
Surface area
4.5274414984774E+15
Circumference
119261800.05003
Perimeter
75924420
Area
360282347021025
Diagonal
26843336.119828
Surface area
2161694082126150
Volume
6.8385570584525E+21
Space diagonal
32876238.2438
Perimeter
56943315
Area
1.5600683252764E+14
Altitude
16438119.1219
Surface area
1.5600683252764E+14
Volume
8.0593167826048E+20
Height
8947778.7066093