20456721 is an odd 8-digits composite number following 20456720
and preceding 20456722 . In scientific notation, it is written as 2.0456721 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 13611264 positive integers (up to 20456721) that are relatively prime to 20456721.
20456721 has 8 divisors, whose sum is 22773960
The reverse of 20456721 is 12765402
Previous prime number is 593
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million four hundred fifty-six thousand seven hundred twenty-one
Scientific notation
2.0456721 × 10^7
Engineering notation
2.0456721 × 10^6
Prime Factorization
9 × 593 × 3833
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20456721
Product of the distinct prime numbers
The prime factorization of 20456721 is 9 × 593 × 3833.
Since it has a total of 3 prime factors.
4 , 1 , 32 , 85 , 692 , 130 , 8995 , 8052 , 36775 , 69167 , 768789 , 118041 , 2146821 , 3789959 , 98658190 , 43785547 , 67696857 , 637778620 , 4614846310 , 3122959215
n×2
40913442
n×3
61370163
n×4
81826884
n×5
102283605
n÷2
10228360.5
n÷3
6818907
n÷3
5114180.25
n÷5
4091344.2
n2
418477434071841
n3
8.5606761136035E+21
n4
1.7512336282735E+29
n5
3.5824497739409E+36
2 √n
4522.9106778711
3 √n
273.49244932793
4 √n
67.252588633234
5 √n
28.984592866541
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
-20456720
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 20456721 can be divided by 8 positive divisors.
The sum of these divisors (counting 20456721) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110000010010100010001
3
Ternary
1102111022100100
4
Quaternary
1032002110101
5
Quinary
20214103341
6
Senary
2010243013
8
Octal
116022421
10
Decimal
20456721
12
Duodecimal
6a26469
16
Hexadecimal
1382511
20
Vigesimal
67h1g1
36
Base36
c6gi9
md5
ac6de042de14329e04922fa627adf1f6
sha1
7af752f49e90c3782ef71f95f97ccfa584df2a9d
sha256
18f1ccdf5788f1fdab18ccba7a479c37ea8a71692abc7da5d8dc5ee5211fe84f
sha512
d5771573928461a3d3e2c1362e4cdee8085cd7154e8cde7cd0d046746611bbd07f99c9af81d83468a2c19b8fb3d345066b2c3b21f369f1ecad0b7e0f219e324a
ripemd-160
c09305d92e7cf2c5c53b9fd6eeebf54bc1582535
Diameter
40913442
Circumference
128533368.82027
Area
1.3146856325732E+15
Volume
3.5858876251011E+22
Surface area
5.2587425302928E+15
Circumference
128533368.82027
Perimeter
81826884
Area
418477434071841
Diagonal
28930172.279883
Surface area
2510864604431046
Volume
8.5606761136035E+21
Space diagonal
35432080.128261
Perimeter
61370163
Area
1.8120604440837E+14
Altitude
17716040.064131
Surface area
1.8120604440837E+14
Volume
1.0088853552451E+21
Height
9643390.7599608