19998021 is an odd 8-digits composite number following 19998020
and preceding 19998022 . In scientific notation, it is written as 1.9998021 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 13321152 positive integers (up to 19998021) that are relatively prime to 19998021.
19998021 has 8 divisors, whose sum is 26685760
The reverse of 19998021 is 12089991
Previous prime number is 1873
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
nineteen million nine hundred ninety-eight thousand twenty-one
Scientific notation
1.9998021 × 10^7
Engineering notation
1.9998021 × 10^6
Prime Factorization
3 × 1873 × 3559
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19998021
Product of the distinct prime numbers
The prime factorization of 19998021 is 3 × 1873 × 3559.
Since it has a total of 3 prime factors.
10 , 4 , 48 , 6 , 413 , 966 , 7015 , 901 , 80382 , 17809 , 136139 , 522057 , 751328 , 5479835 , 54984931 , 32099607 , 85653052 , 722666752 , 3636803165 , 9522803928
n×2
39996042
n×3
59994063
n×4
79992084
n×5
99990105
n÷2
9999010.5
n÷3
6666007
n÷3
4999505.25
n÷5
3999604.2
n2
399920843916441
n3
7.9976254349787E+21
n4
1.5993668139884E+29
n5
3.1984171132843E+36
2 √n
4471.9146905995
3 √n
271.43280831007
4 √n
66.872376139924
5 √n
28.853427074919
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
-19998020
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 19998021 can be divided by 8 positive divisors.
The sum of these divisors (counting 19998021) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100010010010101000101
3
Ternary
1101122000010110
4
Quaternary
1030102111011
5
Quinary
20104414041
6
Senary
1552343233
8
Octal
114222505
10
Decimal
19998021
12
Duodecimal
6844b19
16
Hexadecimal
1312545
20
Vigesimal
64jf11
36
Base36
bwmkl
md5
6ae7629505b9bdb1c5afc1182d720d39
sha1
f69f8763195d98f7eefcf97eed54f9479496f9c5
sha256
c47c83c834b5e8b713fbd7dfaecee6480cb917a43a4988b85f8ab94bf8a93e33
sha512
ec3f38f76b917a4a6fa153e7060a9ad1d1e01ebe1bfab73eadd8c26aeb28ba0e0c145c499278259b61a8a54b8b9698b439684864ce08be407d82ecb0a269abd3
ripemd-160
f1fb485534bf67f0dd3f15f18a5ced76f48e66ab
Diameter
39996042
Circumference
125651271.71987
Area
1.2563883852653E+15
Volume
3.3500375083589E+22
Surface area
5.0255535410613E+15
Circumference
125651271.71987
Perimeter
79992084
Area
399920843916441
Diagonal
28281472.518822
Surface area
2399525063498646
Volume
7.9976254349787E+21
Space diagonal
34637588.422829
Perimeter
59994063
Area
1.7317080516727E+14
Altitude
17318794.211415
Surface area
1.7317080516727E+14
Volume
9.4252919641058E+20
Height
9427157.506274