20021251 is an odd 8-digits prime number following 20021250
and preceding 20021252 . In scientific notation, it is written as 2.0021251 × 10^7.
The sum of its digits is 13. It has a total of 1 prime factors and 2 positive divisors.
There are 20021250 positive integers (up to 20021251) that are relatively prime to 20021251.
20021251 has 2 divisors, whose sum is 20021252
The reverse of 20021251 is 15212002
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 13
Digital Root 4
Name
twenty million twenty-one thousand two hundred fifty-one
Scientific notation
2.0021251 × 10^7
Engineering notation
2.0021251 × 10^6
Prime Factorization
20021251
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20021251
Product of the distinct prime numbers
The prime factorization of 20021251 is 20021251.
Since it has a total of 1 prime factors.
10 , 7 , 97 , 100 , 169 , 247 , 1206 , 3587 , 86723 , 57655 , 276632 , 791370 , 9303774 , 1307259 , 84942316 , 52656085 , 125483725 , 459222099 , 3735932851 , 4313000745
n×2
40042502
n×3
60063753
n×4
80085004
n×5
100106255
n÷2
10010625.5
n÷3
6673750.3333333
n÷3
5005312.75
n÷5
4004250.2
n2
400850491605001
n3
8.0255283058971E+21
n4
1.6068111661997E+29
n5
3.2170369668087E+36
2 √n
4474.511258227
3 √n
271.53786777629
4 √n
66.891787674026
5 √n
28.860127276823
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20021252
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10010626
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4474.511369971
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999001061
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20021251 can be divided by 2 positive divisors.
The sum of these divisors (counting 20021251) is 20021252, the average is 10010626.
Base
System
Value
2
Binary
1001100011000000000000011
3
Ternary
1101200011222211
4
Quaternary
1030120000003
5
Quinary
20111140001
6
Senary
1553042551
8
Octal
114300003
10
Decimal
20021251
12
Duodecimal
6856457
16
Hexadecimal
1318003
20
Vigesimal
652d2b
36
Base36
bx4hv
md5
a1a3cf51ea875c71d6a14fd36e57af67
sha1
a495b8cf7411e3d74acd6d83480de5364fe9c47f
sha256
3af4e762e1505d4a7453de605093c34647803dbfbfe6f29228590d1fb5234e36
sha512
2979a9249ad0c64bcf44065be637eb7785e91ab30ae7bfbe5ca10315b2a8ab61a9ebd48b104e4eb9fccd7c886b8387661378a48efb281ee2568f88a056ccd47d
ripemd-160
a9dd03d3ee5af95e6f22cc5726304f98e182da70
Diameter
40042502
Circumference
125797230.11455
Area
1.2593089596141E+15
Volume
3.3617254355978E+22
Surface area
5.0372358384565E+15
Circumference
125797230.11455
Perimeter
80085004
Area
400850491605001
Diagonal
28314324.699876
Surface area
2405102949630006
Volume
8.0255283058971E+21
Space diagonal
34677823.963089
Perimeter
60063753
Area
1.7357335442471E+14
Altitude
17338911.981545
Surface area
1.7357335442471E+14
Volume
9.4581758128407E+20
Height
9438108.233292