20021487 is an odd 8-digits composite number following 20021486
and preceding 20021488 . In scientific notation, it is written as 2.0021487 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13315968 positive integers (up to 20021487) that are relatively prime to 20021487.
20021487 has 8 divisors, whose sum is 26758704
The reverse of 20021487 is 78412002
Previous prime number is 433
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million twenty-one thousand four hundred eighty-seven
Scientific notation
2.0021487 × 10^7
Engineering notation
2.0021487 × 10^6
Prime Factorization
3 × 433 × 15413
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20021487
Product of the distinct prime numbers
The prime factorization of 20021487 is 3 × 433 × 15413.
Since it has a total of 3 prime factors.
10 , 1 , 63 , 20 , 825 , 398 , 1407 , 3216 , 99820 , 68086 , 29524 , 857000 , 8661638 , 6576679 , 25829099 , 61173609 , 531668538 , 841907579 , 7132748830 , 6579307752
n×2
40042974
n×3
60064461
n×4
80085948
n×5
100107435
n÷2
10010743.5
n÷3
6673829
n÷3
5005371.75
n÷5
4004297.4
n2
400859941691169
n3
8.0258121113905E+21
n4
1.6068869285265E+29
n5
3.2172265749963E+36
2 √n
4474.5376297446
3 √n
271.53893468739
4 √n
66.891984794477
5 √n
28.860195314109
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
-20021486
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 20021487 can be divided by 8 positive divisors.
The sum of these divisors (counting 20021487) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100011000000011101111
3
Ternary
1101200012022120
4
Quaternary
1030120003233
5
Quinary
20111141422
6
Senary
1553044023
8
Octal
114300357
10
Decimal
20021487
12
Duodecimal
6856613
16
Hexadecimal
13180ef
20
Vigesimal
652de7
36
Base36
bx4of
md5
802b055a0e85259128aceb5afc556fe3
sha1
5ac47e35082afc10d3ad30ab93a316213ebab7e4
sha256
32d86a427b108187adb08777afb0cc045701e2100e65f3094cad789e2b466994
sha512
4bf431ec3031923cc335269457f2bc410aad6b42935791b79d8e7a01404b702b6b3b873171dd8a7a0b5f43fb24ddfe89d0121850f7b986b63924045aec1fb32a
ripemd-160
ccbd0bec74c7dd5b4a67f0ded5eeafb60caabc76
Diameter
40042974
Circumference
125798712.94629
Area
1.2593386479354E+15
Volume
3.3618443157648E+22
Surface area
5.0373545917416E+15
Circumference
125798712.94629
Perimeter
80085948
Area
400859941691169
Diagonal
28314658.454277
Surface area
2405159650147014
Volume
8.0258121113905E+21
Space diagonal
34678232.72708
Perimeter
60064461
Area
1.7357744643205E+14
Altitude
17339116.36354
Surface area
1.7357744643205E+14
Volume
9.4585102808222E+20
Height
9438219.4847589