20021851 is an odd 8-digits prime number following 20021850
and preceding 20021852 . In scientific notation, it is written as 2.0021851 × 10^7.
The sum of its digits is 19. It has a total of 1 prime factors and 2 positive divisors.
There are 20021850 positive integers (up to 20021851) that are relatively prime to 20021851.
20021851 has 2 divisors, whose sum is 20021852
The reverse of 20021851 is 15812002
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million twenty-one thousand eight hundred fifty-one
Scientific notation
2.0021851 × 10^7
Engineering notation
2.0021851 × 10^6
Prime Factorization
20021851
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20021851
Product of the distinct prime numbers
The prime factorization of 20021851 is 20021851.
Since it has a total of 1 prime factors.
8 , 1 , 42 , 42 , 541 , 386 , 3804 , 1795 , 45787 , 15322 , 228962 , 209813 , 8183937 , 835033 , 9727545 , 94912124 , 120925889 , 347997794 , 6423112615 , 7371089847
n×2
40043702
n×3
60065553
n×4
80087404
n×5
100109255
n÷2
10010925.5
n÷3
6673950.3333333
n÷3
5005462.75
n÷5
4004370.2
n2
400874517466201
n3
8.0262498584052E+21
n4
1.6070037875376E+29
n5
3.2175190390513E+36
2 √n
4474.5783041534
3 √n
271.54058024571
4 √n
66.892288824298
5 √n
28.860300251716
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20021852
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10010926
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4474.5784158957
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999001091
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20021851 can be divided by 2 positive divisors.
The sum of these divisors (counting 20021851) is 20021852, the average is 10010926.
Base
System
Value
2
Binary
1001100011000001001011011
3
Ternary
1101200012211001
4
Quaternary
1030120021123
5
Quinary
20111144401
6
Senary
1553045431
8
Octal
114301133
10
Decimal
20021851
12
Duodecimal
6856877
16
Hexadecimal
131825b
20
Vigesimal
652ecb
36
Base36
bx4yj
md5
70dbca4a6b51ffae750cbd0947e33fc3
sha1
d253a2c7620fcda3002437a77c00c6c18560c749
sha256
d2eebc2d64856e5d5d2c8495963bc7dc9c667f479b682158edf65a0af5720bb2
sha512
ac0cf6d40ac9623cee8b6e360cb1c8a53bb547db81820939de65ffb51d73241cb53bc63333408664483aef07d09200f425b3aa19f61771d6a5ae018dfe829248
ripemd-160
70d78a47dcbcab633d5d8c5601e9b63e9c9e9edb
Diameter
40043702
Circumference
125801000.02574
Area
1.2593844390832E+15
Volume
3.3620276788056E+22
Surface area
5.0375377563327E+15
Circumference
125801000.02574
Perimeter
80087404
Area
400874517466201
Diagonal
28315173.228013
Surface area
2405247104797206
Volume
8.0262498584052E+21
Space diagonal
34678863.193574
Perimeter
60065553
Area
1.7358375792778E+14
Altitude
17339431.596787
Surface area
1.7358375792778E+14
Volume
9.4590261706264E+20
Height
9438391.0760044