18989899 is an odd 8-digits prime number following 18989898
and preceding 18989900 . In scientific notation, it is written as 1.8989899 × 10^7.
The sum of its digits is 61. It has a total of 1 prime factors and 2 positive divisors.
There are 18989898 positive integers (up to 18989899) that are relatively prime to 18989899.
18989899 has 2 divisors, whose sum is 18989900
The reverse of 18989899 is 99898981
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 61 Digital Root 7
Name
eighteen million nine hundred eighty-nine thousand eight hundred ninety-nine
Scientific notation
1.8989899 × 10^7
Engineering notation
1.8989899 × 10^6
Prime Factorization
18989899
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
18989899 Product of the distinct prime numbers
The prime factorization of 18989899 is 18989899.
Since it has a total of 1 prime factors.
10 , 3 , 96 , 53 , 633 , 123 , 9085 , 6665 , 14259 , 51131 , 41903 , 711553 , 4392864 , 2932147 , 81730987 , 37997922 , 311476300 , 208056762 , 3605054463 , 9167270346
n×2
37979798
n×3
56969697
n×4
75959596
n×5
94949495
n÷2
9494949.5
n÷3
6329966.3333333
n÷3
4747474.75
n÷5
3797979.8
n2
360616264030201
n3
6.8480664316908E+21
n4
1.300440898831E+29
n5
2.469524132427E+36
2 √n4357.7401253402
3 √n266.79286960393
4 √n66.013181451436
5 √n28.556470640937
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
18989900 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
9494950 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4357.7402400786 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999998946809 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18989899 can be divided by 2 positive divisors.
The sum of these divisors (counting 18989899) is 18989900, the average is 9494950.
Base
System
Value
2
Binary
1001000011100001101001011
3
Ternary
1022201210020121
4
Quaternary
1020130031023
5
Quinary
14330134044
6
Senary
1515004111
8
Octal
110341513
10
Decimal
18989899
12
Duodecimal
6439637
16
Hexadecimal
121c34b
20
Vigesimal
5ideej
36
Base36
bb0p7
md5
95ed833ebeff8cf3a0888a92db92d948
sha1
45d13d58b9693e726cbd5f04644240e589f9640b
sha256
96f8c3748213071203e6ab97817e79f9c2288002442f026aa1fd475615b8e703
sha512
a8093b631e06e62ef73c28855767155d27f440850c2ab51c560038f237b539a5862cb23b1a74056907d96d132b5b92867fbe0f2f76832f9341f067d2d51f91a8
ripemd-160
fab7b3f95e29cada07ea180af1db088720ef0fca
Diameter
37979798
Circumference
119317054.38162
Area
1.1329094058423E+15
Volume
2.8685113590793E+22
Surface area
4.5316376233691E+15
Circumference
119317054.38162
Perimeter
75959596
Area
360616264030201
Diagonal
26855772.713895
Surface area
2163697584181206
Volume
6.8480664316908E+21
Space diagonal
32891469.898601
Perimeter
56969697
Area
1.56151422834E+14
Altitude
16445734.949301
Surface area
1.56151422834E+14
Volume
8.0705236864409E+20
Height
8951924.2379651