20218251 is an odd 8-digits composite number following 20218250
and preceding 20218252 . In scientific notation, it is written as 2.0218251 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 13478832 positive integers (up to 20218251) that are relatively prime to 20218251.
20218251 has 4 divisors, whose sum is 26957672
The reverse of 20218251 is 15281202
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million two hundred eighteen thousand two hundred fifty-one
Scientific notation
2.0218251 × 10^7
Engineering notation
2.0218251 × 10^6
Prime Factorization
3 × 6739417
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20218251
Product of the distinct prime numbers
The prime factorization of 20218251 is 3 × 6739417.
Since it has a total of 2 prime factors.
7 , 3 , 54 , 75 , 119 , 399 , 3616 , 8507 , 32368 , 70852 , 948435 , 726331 , 6805872 , 8429264 , 49049315 , 6998507 , 326801134 , 759957420 , 9742007283 , 7172453334
n×2
40436502
n×3
60654753
n×4
80873004
n×5
101091255
n÷2
10109125.5
n÷3
6739417
n÷3
5054562.75
n÷5
4043650.2
n2
408777673499001
n3
8.2647696059989E+21
n4
1.6709918635126E+29
n5
3.3784532915455E+36
2 √n
4496.4709495336
3 √n
272.42556561938
4 √n
67.055730176724
5 √n
28.916699160371
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
-20218250
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 20218251 can be divided by 4 positive divisors.
The sum of these divisors (counting 20218251) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101001000000110001011
3
Ternary
1102001012020010
4
Quaternary
1031020012023
5
Quinary
20133441001
6
Senary
2001203003
8
Octal
115100613
10
Decimal
20218251
12
Duodecimal
6930463
16
Hexadecimal
134818b
20
Vigesimal
6675cb
36
Base36
c1ci3
md5
c3abcd6b9cb26af0058a4220ed1e18bb
sha1
e3d078fac189d4ebc2dff7711c0d9660878db2dc
sha256
8d6192139efc978e82c2713d5597391e419e9fc4c828e2e0bda78011429ae701
sha512
2878bfad5f036b3ef787f23772ace0347480df072575b213069817a53e3884de2fac44219421c227e34b91671e8deb4d10b847657b4e0fd8a8dfbfc6c587457e
ripemd-160
0250fb64e9c5a5ec224a6f6c9a89fc25b1f26a96
Diameter
40436502
Circumference
127035017.62007
Area
1.284212936016E+15
Volume
3.4619385970424E+22
Surface area
5.136851744064E+15
Circumference
127035017.62007
Perimeter
80873004
Area
408777673499001
Diagonal
28592924.771663
Surface area
2452666040994006
Volume
8.2647696059989E+21
Space diagonal
35019037.97218
Perimeter
60654753
Area
1.7700592487502E+14
Altitude
17509518.98609
Surface area
1.7700592487502E+14
Volume
9.7401243889104E+20
Height
9530974.9238878