20021857 is an odd 8-digits composite number following 20021856
and preceding 20021858 . In scientific notation, it is written as 2.0021857 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20006676 positive integers (up to 20021857) that are relatively prime to 20021857.
20021857 has 4 divisors, whose sum is 20037040
The reverse of 20021857 is 75812002
Previous prime number is 1459
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million twenty-one thousand eight hundred fifty-seven
Scientific notation
2.0021857 × 10^7
Engineering notation
2.0021857 × 10^6
Prime Factorization
1459 × 13723
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20021857
Product of the distinct prime numbers
The prime factorization of 20021857 is 1459 × 13723.
Since it has a total of 2 prime factors.
7 , 4 , 83 , 73 , 418 , 342 , 9045 , 6196 , 29358 , 91145 , 645724 , 245760 , 3666105 , 1892662 , 79643902 , 44917361 , 76185266 , 942838220 , 8264725004 , 6592192867
n×2
40043714
n×3
60065571
n×4
80087428
n×5
100109285
n÷2
10010928.5
n÷3
6673952.3333333
n÷3
5005464.25
n÷5
4004371.4
n2
400874757728449
n3
8.0262570741487E+21
n4
1.6070057138384E+29
n5
3.2175238600656E+36
2 √n
4474.5789746076
3 √n
271.54060737013
4 √n
66.892293835744
5 √n
28.860301981444
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
-20021856
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 20021857 can be divided by 4 positive divisors.
The sum of these divisors (counting 20021857) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100011000001001100001
3
Ternary
1101200012211021
4
Quaternary
1030120021201
5
Quinary
20111144412
6
Senary
1553045441
8
Octal
114301141
10
Decimal
20021857
12
Duodecimal
6856881
16
Hexadecimal
1318261
20
Vigesimal
652ech
36
Base36
bx4yp
md5
4979885111551b295cdf7084f90cfe4a
sha1
2961374a64ebb9d043735d4a4c59d04185dbe355
sha256
5e0fd262f73e9bc671683b32191eaa9a4f9df2240cf9f7f6e371aafb249b4112
sha512
be96d40811ee12f2739b26c57edc27d2dffded894b5723a5bee22e873a08a7b3df57f7e291c3f9689d6e59d9aadba4a2a5979fa2c2201f9b4ce048eba5d23e64
ripemd-160
af94e9b5caa0a495d2bd50ef70293c00a045128a
Diameter
40043714
Circumference
125801037.72485
Area
1.2593851938893E+15
Volume
3.3620307013291E+22
Surface area
5.0375407755571E+15
Circumference
125801037.72485
Perimeter
80087428
Area
400874757728449
Diagonal
28315181.713295
Surface area
2405248546370694
Volume
8.0262570741487E+21
Space diagonal
34678873.585879
Perimeter
60065571
Area
1.7358386196438E+14
Altitude
17339436.792939
Surface area
1.7358386196438E+14
Volume
9.4590346744617E+20
Height
9438393.9044316