20122721 is an odd 8-digits composite number following 20122720
and preceding 20122722 . In scientific notation, it is written as 2.0122721 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 19694532 positive integers (up to 20122721) that are relatively prime to 20122721.
20122721 has 4 divisors, whose sum is 20550912
The reverse of 20122721 is 12722102
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million one hundred twenty-two thousand seven hundred twenty-one
Scientific notation
2.0122721 × 10^7
Engineering notation
2.0122721 × 10^6
Prime Factorization
47 × 428143
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20122721
Product of the distinct prime numbers
The prime factorization of 20122721 is 47 × 428143.
Since it has a total of 2 prime factors.
10 , 4 , 27 , 5 , 915 , 998 , 8903 , 6007 , 38512 , 52100 , 849072 , 480199 , 1562610 , 2595272 , 67318498 , 74959350 , 104082944 , 840712121 , 7078285722 , 4460303288
n×2
40245442
n×3
60368163
n×4
80490884
n×5
100613605
n÷2
10061360.5
n÷3
6707573.6666667
n÷3
5030680.25
n÷5
4024544.2
n2
404923900443841
n3
8.1481706748632E+21
n4
1.6396336515065E+29
n5
3.2993890511477E+36
2 √n
4485.8355966308
3 √n
271.99582335715
4 √n
66.97638088633
5 √n
28.889321440977
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
-20122720
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 20122721 can be divided by 4 positive divisors.
The sum of these divisors (counting 20122721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000110001100001
3
Ternary
1101212100011222
4
Quaternary
1030300301201
5
Quinary
20122411341
6
Senary
1555144425
8
Octal
114606141
10
Decimal
20122721
12
Duodecimal
68a5115
16
Hexadecimal
1330c61
20
Vigesimal
65f6g1
36
Base36
bzash
md5
449ed6071fcbe124b31db3d31b88bc43
sha1
6342a111386db98276ee52614ac68918901cb499
sha256
4506b9286661e5f63a6771354d1288e9f190bdf5367b6c803dcf225f6acb1bea
sha512
1194629dd4e97444b505a056addc4ad7d6e64a6d95a4ac6c4b790fa31e4a3c52d871c50c3f9995dc3b86baaddbc7767a1e5cb01ba906eba1ede30b3672b7461e
ripemd-160
a9b90b0f65df44cb8599ba2df5249364648c7ca9
Diameter
40245442
Circumference
126434784.92767
Area
1.2721059508973E+15
Volume
3.4130977509795E+22
Surface area
5.0884238035892E+15
Circumference
126434784.92767
Perimeter
80490884
Area
404923900443841
Diagonal
28457824.95005
Surface area
2429543402663046
Volume
8.1481706748632E+21
Space diagonal
34853575.158533
Perimeter
60368163
Area
1.7533719219192E+14
Altitude
17426787.579267
Surface area
1.7533719219192E+14
Volume
9.6027112307685E+20
Height
9485941.6500166