19981637 is an odd 8-digits composite number following 19981636
and preceding 19981638 . In scientific notation, it is written as 1.9981637 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 17994240 positive integers (up to 19981637) that are relatively prime to 19981637.
19981637 has 8 divisors, whose sum is 22044120
The reverse of 19981637 is 73618991
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
nineteen million nine hundred eighty-one thousand six hundred thirty-seven
Scientific notation
1.9981637 × 10^7
Engineering notation
1.9981637 × 10^6
Prime Factorization
13 × 41 × 37489
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19981637
Product of the distinct prime numbers
The prime factorization of 19981637 is 13 × 41 × 37489.
Since it has a total of 3 prime factors.
8 , 4 , 91 , 89 , 147 , 228 , 5872 , 4985 , 73437 , 507 , 985998 , 921602 , 5051193 , 4551662 , 30135479 , 46900384 , 121572226 , 130494223 , 1032178932 , 1739237514
n×2
39963274
n×3
59944911
n×4
79926548
n×5
99908185
n÷2
9990818.5
n÷3
6660545.6666667
n÷3
4995409.25
n÷5
3996327.4
n2
399265817199769
n3
7.9779846257941E+21
n4
1.594131927842E+29
n5
3.1853365512249E+36
2 √n
4470.0824377186
3 √n
271.35866147033
4 √n
66.8586751119
5 √n
28.848697711485
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
-19981636
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 19981637 can be divided by 8 positive divisors.
The sum of these divisors (counting 19981637) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100001110010101000101
3
Ternary
1101121011122122
4
Quaternary
1030032111011
5
Quinary
20103403022
6
Senary
1552135325
8
Octal
114162505
10
Decimal
19981637
12
Duodecimal
6837545
16
Hexadecimal
130e545
20
Vigesimal
64he1h
36
Base36
bw9xh
md5
535e9d3c6e1a530d34bcfa23280d6db5
sha1
4f1997d62d4a380f3ff5dbfd73566ae41f8cf471
sha256
c831591cbec25c6d1a97826e97efa27f6a2bbbe024b9128a80909823b24061ce
sha512
762afdff44f816f8eed11ee8cf7603b2b9609c29fcfee19be968517ac7d7719ce4ef358822d1c4e21da3a214c3cd63c755f7b2317856c4563d2ed93b71c196b4
ripemd-160
7d32defb7419afefbf6f37b1eac4e8516a7b9fc1
Diameter
39963274
Circumference
125548328.0118
Area
1.2543305581443E+15
Volume
3.3418103854463E+22
Surface area
5.0173222325773E+15
Circumference
125548328.0118
Perimeter
79926548
Area
399265817199769
Diagonal
28258302.043816
Surface area
2395594903198614
Volume
7.9779846257941E+21
Space diagonal
34609210.502398
Perimeter
59944911
Area
1.7288717027888E+14
Altitude
17304605.251199
Surface area
1.7288717027888E+14
Volume
9.4021450485018E+20
Height
9419434.0146053