20019491 is an odd 8-digits composite number following 20019490
and preceding 20019492 . In scientific notation, it is written as 2.0019491 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 19884984 positive integers (up to 20019491) that are relatively prime to 20019491.
20019491 has 4 divisors, whose sum is 20154000
The reverse of 20019491 is 19491002
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million nineteen thousand four hundred ninety-one
Scientific notation
2.0019491 × 10^7
Engineering notation
2.0019491 × 10^6
Prime Factorization
149 × 134359
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20019491
Product of the distinct prime numbers
The prime factorization of 20019491 is 149 × 134359.
Since it has a total of 2 prime factors.
6 , 9 , 55 , 43 , 614 , 46 , 5632 , 9249 , 69307 , 58607 , 950906 , 336386 , 1477772 , 8381594 , 43927020 , 7748298 , 767918355 , 183487339 , 8485920778 , 4498200167
n×2
40038982
n×3
60058473
n×4
80077964
n×5
100097455
n÷2
10009745.5
n÷3
6673163.6666667
n÷3
5004872.75
n÷5
4003898.2
n2
400780019899081
n3
8.0234120013495E+21
n4
1.6062462435031E+29
n5
3.2156232215594E+36
2 √n
4474.3145843805
3 √n
271.52991088669
4 √n
66.890317568244
5 √n
28.859619859877
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20019490
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20019491 can be divided by 4 positive divisors.
The sum of these divisors (counting 20019491) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010111100100100011
3
Ternary
1101200002120122
4
Quaternary
1030113210203
5
Quinary
20111110431
6
Senary
1553030455
8
Octal
114274443
10
Decimal
20019491
12
Duodecimal
685542b
16
Hexadecimal
1317923
20
Vigesimal
6528eb
36
Base36
bx34z
md5
e2cb80e372518580c56255e0266e55ab
sha1
062e42c442f2b0cd4080214c78a3551937f88c1a
sha256
fca9cc98697f9e55a44afb5fff7f50bf28629e163a77254fcb4502c5110a5493
sha512
849beac2c0c0686fe7b48b34a3e3b393ca0e54c3fccf4345032912df0c4edae8d7c232d3f1803376bf1e0f6243ea936e4aaca442d9d507eeb90d1ba65a9f7e49
ripemd-160
5f3910295eadaf0a40b96eb676399a4af3ce2ac4
Diameter
40038982
Circumference
125786171.70841
Area
1.2590875662205E+15
Volume
3.3608389600218E+22
Surface area
5.0363502648821E+15
Circumference
125786171.70841
Perimeter
80077964
Area
400780019899081
Diagonal
28311835.684006
Surface area
2404680119394486
Volume
8.0234120013495E+21
Space diagonal
34674775.553668
Perimeter
60058473
Area
1.7354283928092E+14
Altitude
17337387.776834
Surface area
1.7354283928092E+14
Volume
9.4556817240129E+20
Height
9437278.5613354