20021855 is an odd 8-digits composite number following 20021854
and preceding 20021856 . In scientific notation, it is written as 2.0021855 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 13729248 positive integers (up to 20021855) that are relatively prime to 20021855.
20021855 has 4 divisors, whose sum is 20593944
The reverse of 20021855 is 55812002
Previous prime number is 35
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million twenty-one thousand eight hundred fifty-five
Scientific notation
2.0021855 × 10^7
Engineering notation
2.0021855 × 10^6
Prime Factorization
35 × 572053
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20021855
Product of the distinct prime numbers
The prime factorization of 20021855 is 35 × 572053.
Since it has a total of 2 prime factors.
4 , 2 , 42 , 17 , 891 , 362 , 5243 , 9969 , 72548 , 47543 , 301632 , 438283 , 2162409 , 7617777 , 75652804 , 31339608 , 378484322 , 182501983 , 5688065010 , 1285372580
n×2
40043710
n×3
60065565
n×4
80087420
n×5
100109275
n÷2
10010927.5
n÷3
6673951.6666667
n÷3
5005463.75
n÷5
4004371
n2
400874677641025
n3
8.0262546689003E+21
n4
1.607005071738E+29
n5
3.2175222530602E+36
2 √n
4474.5787511228
3 √n
271.54059832866
4 √n
66.892292165262
5 √n
28.860301404868
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
-20021854
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 20021855 can be divided by 4 positive divisors.
The sum of these divisors (counting 20021855) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100011000001001011111
3
Ternary
1101200012211012
4
Quaternary
1030120021133
5
Quinary
20111144410
6
Senary
1553045435
8
Octal
114301137
10
Decimal
20021855
12
Duodecimal
685687b
16
Hexadecimal
131825f
20
Vigesimal
652ecf
36
Base36
bx4yn
md5
79fc4fdbdcb34abf1cd7aa1701761f01
sha1
33335af35534ec43fc8becdd950c1d2e9794a9e5
sha256
bc54de622eee6849aecd358ff71794aeb45c10f440c91be9c3c076bb4a676338
sha512
bce022aa75e665cada44240cc4a125196b2b0c81e0a090398a7a54c3fe401636a11c8cd22e52a539ab0c052dc2089f2bb89e0086772379fed77effb0ed08f8b9
ripemd-160
0246f82ab4ad93670a7a527c4112cce0594430d1
Diameter
40043710
Circumference
125801025.15848
Area
1.2593849422872E+15
Volume
3.3620296938211E+22
Surface area
5.0375397691489E+15
Circumference
125801025.15848
Perimeter
80087420
Area
400874677641025
Diagonal
28315178.884868
Surface area
2405248065846150
Volume
8.0262546689003E+21
Space diagonal
34678870.121777
Perimeter
60065565
Area
1.7358382728551E+14
Altitude
17339435.060888
Surface area
1.7358382728551E+14
Volume
9.4590318398494E+20
Height
9438392.9616225