20021490 is an even 8-digits composite number following 20021489
and preceding 20021491 . In scientific notation, it is written as 2.0021490 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 5339040 positive integers (up to 20021490) that are relatively prime to 20021490.
20021490 has 16 divisors, whose sum is 40043160
The reverse of 20021490 is 09412002
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million twenty-one thousand four hundred ninety
Scientific notation
2.0021490 × 10^7
Engineering notation
2.0021490 × 10^6
Prime Factorization
2 × 9 × 5 × 222461
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20021490
Product of the distinct prime numbers
The prime factorization of 20021490 is 2 × 9 × 5 × 222461.
Since it has a total of 4 prime factors.
6 , 10 , 68 , 41 , 677 , 700 , 9456 , 2117 , 34254 , 64733 , 67525 , 829028 , 7530939 , 7253580 , 64461673 , 7469849 , 466602951 , 98654056 , 8123849562 , 5123581876
n×2
40042980
n×3
60064470
n×4
80085960
n×5
100107450
n÷2
10010745
n÷3
6673830
n÷3
5005372.5
n÷5
4004298
n2
400860061820100
n3
8.0258157191305E+21
n4
1.6068878916241E+29
n5
3.2172289853274E+36
2 √n
4474.5379649747
3 √n
271.53894824977
4 √n
66.891987300234
5 √n
28.860196178985
1 , 2 , 5 , 9 , 10 , 18 , 45 , 90 , 222461 , 444922 , 1112305 , 2002149 , 2224610 , 4004298 , 10010745 , 20021490
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20021489
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20021490 can be divided by 16 positive divisors.
The sum of these divisors (counting 20021490) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100011000000011110010
3
Ternary
1101200012022200
4
Quaternary
1030120003302
5
Quinary
20111141430
6
Senary
1553044030
8
Octal
114300362
10
Decimal
20021490
12
Duodecimal
6856616
16
Hexadecimal
13180f2
20
Vigesimal
652dea
36
Base36
bx4oi
md5
597e6d0632d07504d121637ad1a9ac27
sha1
9290498c1452b30d953c6c7d2fc1403f0b0cf424
sha256
06c1286f82abc4813eb09b8d53dfdfd47c9398abbc182c0c77ae1df1e1d450b3
sha512
881540e0a72933208e6ce0a3242d5998f4366309403c9042080993d1d8e0a8b116a144ee1ea0c824e0a9d4cb3bf4d30b95effb5dbcb5d6ec80849e023ec46e4b
ripemd-160
df9c8e50dafbb3250a577c8e611b494c69df138e
Diameter
40042980
Circumference
125798731.79584
Area
1.2593390253316E+15
Volume
3.3618458269715E+22
Surface area
5.0373561013263E+15
Circumference
125798731.79584
Perimeter
80085960
Area
400860061820100
Diagonal
28314662.696917
Surface area
2405160370920600
Volume
8.0258157191305E+21
Space diagonal
34678237.923232
Perimeter
60064470
Area
1.735774984494E+14
Altitude
17339118.961616
Surface area
1.735774984494E+14
Volume
9.4585145325846E+20
Height
9438220.8989724