19981636 is an even 8-digits composite number following 19981635
and preceding 19981637 . In scientific notation, it is written as 1.9981636 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors.
There are 9802208 positive integers (up to 19981636) that are relatively prime to 19981636.
19981636 has 12 divisors, whose sum is 35628012
The reverse of 19981636 is 63618991
Previous prime number is 53
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
nineteen million nine hundred eighty-one thousand six hundred thirty-six
Scientific notation
1.9981636 × 10^7
Engineering notation
1.9981636 × 10^6
Prime Factorization
2 × 2 × 53 × 94253
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9990818
Product of the distinct prime numbers
The prime factorization of 19981636 is 2 × 2 × 53 × 94253.
Since it has a total of 4 prime factors.
2 , 10 , 29 , 42 , 229 , 131 , 9435 , 5499 , 23002 , 13355 , 886504 , 177814 , 1256793 , 9721627 , 83399533 , 56314663 , 737071016 , 438560513 , 5491699732 , 3040306930
n×2
39963272
n×3
59944908
n×4
79926544
n×5
99908180
n÷2
9990818
n÷3
6660545.3333333
n÷3
4995409
n÷5
3996327.2
n2
399265777236496
n3
7.9779834279967E+21
n4
1.5941316087226E+29
n5
3.185335754159E+36
2 √n
4470.0823258638
3 √n
271.35865694353
4 √n
66.858674275398
5 √n
28.848697422733
1 , 2 , 4 , 53 , 106 , 212 , 94253 , 188506 , 377012 , 4995409 , 9990818 , 19981636
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19981635
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19981636 can be divided by 12 positive divisors.
The sum of these divisors (counting 19981636) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100001110010101000100
3
Ternary
1101121011122121
4
Quaternary
1030032111010
5
Quinary
20103403021
6
Senary
1552135324
8
Octal
114162504
10
Decimal
19981636
12
Duodecimal
6837544
16
Hexadecimal
130e544
20
Vigesimal
64he1g
36
Base36
bw9xg
md5
c5b0190df8e2ac67112d8ba2a6f85845
sha1
3d0a7489599daccaa6883cc920edc2519ab08339
sha256
3a89a048bae2ce96e21c10c5d97490b53678a156a2c2a6fd0c555faff64e9d86
sha512
d3d4535b9350b935378bc1f6aabf9901c4288c0f30521687d0f797c27f38aa6f8cd7938b76b82d610df16fe06f0c2594f16b9f2390ff118c22ce1d29c05efe44
ripemd-160
f492c4c6d065252883a4e901bc23719b77c049fd
Diameter
39963272
Circumference
125548321.72861
Area
1.254330432596E+15
Volume
3.3418098837141E+22
Surface area
5.017321730384E+15
Circumference
125548321.72861
Perimeter
79926544
Area
399265777236496
Diagonal
28258300.629602
Surface area
2395594663418976
Volume
7.9779834279967E+21
Space diagonal
34609208.770347
Perimeter
59944908
Area
1.7288715297427E+14
Altitude
17304604.385174
Surface area
1.7288715297427E+14
Volume
9.402143636884E+20
Height
9419433.5432008