20021145 is an odd 8-digits composite number following 20021144
and preceding 20021146 . In scientific notation, it is written as 2.0021145 × 10^7.
The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors.
There are 10677936 positive integers (up to 20021145) that are relatively prime to 20021145.
20021145 has 8 divisors, whose sum is 32033856
The reverse of 20021145 is 54112002
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty million twenty-one thousand one hundred forty-five
Scientific notation
2.0021145 × 10^7
Engineering notation
2.0021145 × 10^6
Prime Factorization
3 × 5 × 1334743
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20021145
Product of the distinct prime numbers
The prime factorization of 20021145 is 3 × 5 × 1334743.
Since it has a total of 3 prime factors.
9 , 8 , 2 , 54 , 121 , 383 , 4373 , 6881 , 81106 , 31593 , 848673 , 427413 , 6209768 , 9946266 , 44241765 , 82497861 , 617827390 , 701901987 , 3854199119 , 4414401501
n×2
40042290
n×3
60063435
n×4
80084580
n×5
100105725
n÷2
10010572.5
n÷3
6673715
n÷3
5005286.25
n÷5
4004229
n2
400846247111025
n3
8.0254008361157E+21
n4
1.6067771382299E+29
n5
3.2169518067186E+36
2 √n
4474.4994133422
3 √n
271.53738856773
4 √n
66.891699136307
5 √n
28.860096717494
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20021144
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20021145 can be divided by 8 positive divisors.
The sum of these divisors (counting 20021145) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100010111111110011001
3
Ternary
1101200011211220
4
Quaternary
1030113332121
5
Quinary
20111134040
6
Senary
1553042253
8
Octal
114277631
10
Decimal
20021145
12
Duodecimal
6856389
16
Hexadecimal
1317f99
20
Vigesimal
652ch5
36
Base36
bx4ex
md5
947bd7167bb815478887f7a45286a111
sha1
ecee991877fa543d0b3844740b89b1487aa58f1a
sha256
2c410c8acb0dcf30e325b097053a0197105a937c84d8753ff07925f0e9c2b3e8
sha512
cf8c3abbc5b80829b76828b31b7921e069b2dfbbbd7510b438a90739fc6650dfec6e7fb91763b96a046248ff1522c3feed463a07403bf8994b8c660281227016
ripemd-160
0e0c30def2d219df711df4ea09777f3d7091a4e6
Diameter
40042290
Circumference
125796564.09691
Area
1.259295625143E+15
Volume
3.3616720411806E+22
Surface area
5.0371825005721E+15
Circumference
125796564.09691
Perimeter
80084580
Area
400846247111025
Diagonal
28314174.793238
Surface area
2405077482666150
Volume
8.0254008361157E+21
Space diagonal
34677640.365704
Perimeter
60063435
Area
1.735715165049E+14
Altitude
17338820.182852
Surface area
1.735715165049E+14
Volume
9.4580255882626E+20
Height
9438058.2644128