20042721 is an odd 8-digits composite number following 20042720
and preceding 20042722 . In scientific notation, it is written as 2.0042721 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 12 positive divisors.
There are 13304736 positive integers (up to 20042721) that are relatively prime to 20042721.
20042721 has 12 divisors, whose sum is 22613500
The reverse of 20042721 is 12724002
Previous prime number is 349
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million forty-two thousand seven hundred twenty-one
Scientific notation
2.0042721 × 10^7
Engineering notation
2.0042721 × 10^6
Prime Factorization
9 × 9 × 349 × 709
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2226969
Product of the distinct prime numbers
The prime factorization of 20042721 is 9 × 9 × 349 × 709.
Since it has a total of 4 prime factors.
6 , 7 , 2 , 57 , 60 , 58 , 1217 , 9905 , 13616 , 97108 , 998329 , 742189 , 1530456 , 9029696 , 40248281 , 78627290 , 206124732 , 920857318 , 4697786088 , 6988101398
n×2
40085442
n×3
60128163
n×4
80170884
n×5
100213605
n÷2
10021360.5
n÷3
6680907
n÷3
5010680.25
n÷5
4008544.2
n2
401710665083841
n3
8.0513747829999E+21
n4
1.613714584421E+29
n5
3.2343231189181E+36
2 √n
4476.9097600912
3 √n
271.63489526868
4 √n
66.909713495809
5 √n
28.866314315965
1 , 9 , 81 , 349 , 709 , 3141 , 6381 , 28269 , 57429 , 247441 , 2226969 , 20042721
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20042720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20042721 can be divided by 12 positive divisors.
The sum of these divisors (counting 20042721) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100011101001111100001
3
Ternary
1101201021110000
4
Quaternary
1030131033201
5
Quinary
20112331341
6
Senary
1553330213
8
Octal
114351741
10
Decimal
20042721
12
Duodecimal
6866969
16
Hexadecimal
131d3e1
20
Vigesimal
6556g1
36
Base36
bxl29
md5
83754287b8412223583042608b7e5718
sha1
bb3e5ce194412df9635bf3fbd0c59d0059c9486f
sha256
54e569eace07aca986e738f32c1af4b61ae62416129f08d8e04b6b59500f036b
sha512
bb139191c2daf8a7b1a9cead70b5721e53b2c0928bb23a49ae72633dde046e6cb8087f3fbfc441e8d9aa16cda415bd462ec170906d36794ebdd66250eee920d3
ripemd-160
631a5e897b13def9b8de00b1885c961f174da410
Diameter
40085442
Circumference
125932130.1031
Area
1.2620112742961E+15
Volume
3.3725519826094E+22
Surface area
5.0480450971843E+15
Circumference
125932130.1031
Perimeter
80170884
Area
401710665083841
Diagonal
28344687.86506
Surface area
2410263990503046
Volume
8.0513747829999E+21
Space diagonal
34715011.093928
Perimeter
60128163
Area
1.7394582046687E+14
Altitude
17357505.546964
Surface area
1.7394582046687E+14
Volume
9.4886361782226E+20
Height
9448229.2883533