20451213 is an odd 8-digits composite number following 20451212
and preceding 20451214 . In scientific notation, it is written as 2.0451213 × 10^7.
The sum of its digits is 18. It has a total of 2 prime factors and 4 positive divisors.
There are 13634136 positive integers (up to 20451213) that are relatively prime to 20451213.
20451213 has 4 divisors, whose sum is 22723580
The reverse of 20451213 is 31215402
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million four hundred fifty-one thousand two hundred thirteen
Scientific notation
2.0451213 × 10^7
Engineering notation
2.0451213 × 10^6
Prime Factorization
9 × 2272357
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20451213
Product of the distinct prime numbers
The prime factorization of 20451213 is 9 × 2272357.
Since it has a total of 2 prime factors.
7 , 1 , 20 , 7 , 881 , 610 , 6697 , 6259 , 81958 , 2108 , 943335 , 926142 , 3848837 , 2613086 , 14166561 , 91429240 , 917533097 , 297973004 , 9160356658 , 2377160374
n×2
40902426
n×3
61353639
n×4
81804852
n×5
102256065
n÷2
10225606.5
n÷3
6817071
n÷3
5112803.25
n÷5
4090242.6
n2
418252113171369
n3
8.5537630541678E+21
n4
1.7493483017232E+29
n5
3.5776294729729E+36
2 √n
4522.3017369477
3 √n
273.46790105305
4 √n
67.2480612133
5 √n
28.983031870188
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
-20451212
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 20451213 can be divided by 4 positive divisors.
The sum of these divisors (counting 20451213) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110000000111110001101
3
Ternary
1102111000210100
4
Quaternary
1032000332031
5
Quinary
20213414323
6
Senary
2010201313
8
Octal
116007615
10
Decimal
20451213
12
Duodecimal
6a23239
16
Hexadecimal
1380f8d
20
Vigesimal
67g80d
36
Base36
c6c99
md5
f5e1622dc94dec1d69ea7f328ed56209
sha1
5bbb1db438f8ec878f2cc454d1ee08e8ec2d7379
sha256
4f837f54bd4fea37b3cba0f2fbfcc64cb05fd916a9bf4db32b9fd36e58c74602
sha512
1612934777585974b5cffc6f52a16677e3d331fccfed16ba1e01b245be26c16679ca574eb82e8280dcf69e9d283fa78a2d90617313e61889df6f30b1847b53cd
ripemd-160
40c2a10bf5eff7edc3d74ab2a8dd874a067a49c8
Diameter
40902426
Circumference
128498761.0356
Area
1.3139777660876E+15
Volume
3.5829918895362E+22
Surface area
5.2559110643503E+15
Circumference
128498761.0356
Perimeter
81804852
Area
418252113171369
Diagonal
28922382.791581
Surface area
2509512679028214
Volume
8.5537630541678E+21
Space diagonal
35422539.992413
Perimeter
61353639
Area
1.8110847759646E+14
Altitude
17711269.996207
Surface area
1.8110847759646E+14
Volume
1.0080706433775E+21
Height
9640794.2638603