20162721 is an odd 8-digits composite number following 20162720
and preceding 20162722 . In scientific notation, it is written as 2.0162721 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13430720 positive integers (up to 20162721) that are relatively prime to 20162721.
20162721 has 8 divisors, whose sum is 26905824
The reverse of 20162721 is 12726102
Previous prime number is 1787
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred sixty-two thousand seven hundred twenty-one
Scientific notation
2.0162721 × 10^7
Engineering notation
2.0162721 × 10^6
Prime Factorization
3 × 1787 × 3761
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20162721
Product of the distinct prime numbers
The prime factorization of 20162721 is 3 × 1787 × 3761.
Since it has a total of 3 prime factors.
3 , 10 , 28 , 27 , 565 , 590 , 5242 , 7769 , 15687 , 66342 , 606429 , 584271 , 9815664 , 8443442 , 82860769 , 77249392 , 501291799 , 645322157 , 3283455333 , 9552874225
n×2
40325442
n×3
60488163
n×4
80650884
n×5
100813605
n÷2
10081360.5
n÷3
6720907
n÷3
5040680.25
n÷5
4032544.2
n2
406535318123841
n3
8.1968581959772E+21
n4
1.6527096488205E+29
n5
3.3323123543176E+36
2 √n
4490.2918613382
3 √n
272.17592875306
4 √n
67.009640062742
5 √n
28.900797574166
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
-20162720
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 20162721 can be divided by 8 positive divisors.
The sum of these divisors (counting 20162721) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111010100010100001
3
Ternary
1101221101001110
4
Quaternary
1030322202201
5
Quinary
20130201341
6
Senary
2000053533
8
Octal
114724241
10
Decimal
20162721
12
Duodecimal
69042a9
16
Hexadecimal
133a8a1
20
Vigesimal
6606g1
36
Base36
c05nl
md5
e619e39030019e0f99b200de86c0ac42
sha1
fe91f4f092105ae5ca95db0aa0a4686c091da7e9
sha256
1f10585d1b73dbd40761d9e9b34a4b1f1139bb31fe932054217e322baecdb1bc
sha512
2bc94d2db781c36c38ecd773cc34a2be09cf56cdc182c4153c93f67c0ea7967f949bbbf8393d9c8273526751578ed4fce0d410a5d5809642bac8842c71844b50
ripemd-160
74ef4b13f9b81bae1b1b3fea586e7db25debb193
Diameter
40325442
Circumference
126686112.33996
Area
1.2771683688426E+15
Volume
3.4334919321333E+22
Surface area
5.1086734753706E+15
Circumference
126686112.33996
Perimeter
80650884
Area
406535318123841
Diagonal
28514393.492545
Surface area
2439211908743046
Volume
8.1968581959772E+21
Space diagonal
34922857.190836
Perimeter
60488163
Area
1.7603495651542E+14
Altitude
17461428.595418
Surface area
1.7603495651542E+14
Volume
9.6600900246667E+20
Height
9504797.8308483