18989997 is an odd 8-digits composite number following 18989996
and preceding 18989998 . In scientific notation, it is written as 1.8989997 × 10^7.
The sum of its digits is 60. It has a total of 3 prime factors and 8 positive divisors.
There are 11686128 positive integers (up to 18989997) that are relatively prime to 18989997.
18989997 has 8 divisors, whose sum is 27267744
The reverse of 18989997 is 79998981
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 60
Digital Root 6
Name
eighteen million nine hundred eighty-nine thousand nine hundred ninety-seven
Scientific notation
1.8989997 × 10^7
Engineering notation
1.8989997 × 10^6
Prime Factorization
3 × 13 × 486923
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18989997
Product of the distinct prime numbers
The prime factorization of 18989997 is 3 × 13 × 486923.
Since it has a total of 3 prime factors.
3 , 5 , 4 , 28 , 982 , 532 , 2220 , 466 , 63895 , 65148 , 467594 , 840126 , 5096486 , 306251 , 77235086 , 11478884 , 703440185 , 908664686 , 2037876775 , 6089832350
n×2
37979994
n×3
56969991
n×4
75959988
n×5
94949985
n÷2
9494998.5
n÷3
6329999
n÷3
4747499.25
n÷5
3797999.4
n2
360619986060009
n3
6.8481724534196E+21
n4
1.3004677434592E+29
n5
2.4695878546887E+36
2 √n
4357.751369686
3 √n
266.79332854364
4 √n
66.013266618809
5 √n
28.5565001148
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
-18989996
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 18989997 can be divided by 8 positive divisors.
The sum of these divisors (counting 18989997) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011100001110101101
3
Ternary
1022201210101020
4
Quaternary
1020130032231
5
Quinary
14330134442
6
Senary
1515004353
8
Octal
110341655
10
Decimal
18989997
12
Duodecimal
64396b9
16
Hexadecimal
121c3ad
20
Vigesimal
5idejh
36
Base36
bb0rx
md5
e232676baaf097ad7ae136e0047c1079
sha1
89a3f891effa0059787296da05818d366d72921f
sha256
faff9ab402ea34d61563bdc62e8c5b129250c517c9a4e56fea77ecd8781cb405
sha512
a56ff96b967527e9376e27faf6f9d38cf9a750ab91fde1d91fafb10b61008a3b059c69f3d988fc92acc97ba049a826b2df612dd7f60d13520b07b0afc0b8d4b9
ripemd-160
f8c2dc69cb158c8cbace8178e4a916fda6f93b04
Diameter
37979994
Circumference
119317670.13378
Area
1.1329210989438E+15
Volume
2.8685557693572E+22
Surface area
4.5316843957751E+15
Circumference
119317670.13378
Perimeter
75959988
Area
360619986060009
Diagonal
26855911.306824
Surface area
2163719916360054
Volume
6.8481724534196E+21
Space diagonal
32891639.639581
Perimeter
56969991
Area
1.5615303452018E+14
Altitude
16445819.81979
Surface area
1.5615303452018E+14
Volume
8.0706486342465E+20
Height
8951970.4356081