20921393 is an odd 8-digits composite number following 20921392
and preceding 20921394 . In scientific notation, it is written as 2.0921393 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 20812800 positive integers (up to 20921393) that are relatively prime to 20921393.
20921393 has 4 divisors, whose sum is 21029988
The reverse of 20921393 is 39312902
Previous prime number is 193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million nine hundred twenty-one thousand three hundred ninety-three
Scientific notation
2.0921393 × 10^7
Engineering notation
2.0921393 × 10^6
Prime Factorization
193 × 108401
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20921393
Product of the distinct prime numbers
The prime factorization of 20921393 is 193 × 108401.
Since it has a total of 2 prime factors.
10 , 4 , 69 , 90 , 824 , 925 , 3796 , 7264 , 63434 , 16295 , 859305 , 198225 , 9359918 , 7453574 , 50726060 , 18086238 , 381891466 , 246377215 , 2406726998 , 6251888611
n×2
41842786
n×3
62764179
n×4
83685572
n×5
104606965
n÷2
10460696.5
n÷3
6973797.6666667
n÷3
5230348.25
n÷5
4184278.6
n2
437704685060449
n3
9.1573917340909E+21
n4
1.9158539132387E+29
n5
4.0082332649454E+36
2 √n
4573.9909269696
3 √n
275.54774793488
4 √n
67.631286598508
5 √n
29.115088832894
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
-20921392
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 20921393 can be divided by 4 positive divisors.
The sum of these divisors (counting 20921393) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110011110000110001
3
Ternary
1110100220202102
4
Quaternary
1033303300301
5
Quinary
20323441033
6
Senary
2024230145
8
Octal
117636061
10
Decimal
20921393
12
Duodecimal
700b355
16
Hexadecimal
13f3c31
20
Vigesimal
6af39d
36
Base36
cgf1t
md5
11280d40344d888962d6558bf9fe9a3a
sha1
7d0d75c25f23096c2871e56aae50264251f975ce
sha256
56395b00d62fc40f46f384dcf1661d3152bbf4e1f3dde9a9c70eac156a2ce2a1
sha512
baa130db157a628fbeb31cf02432674e2cec4f3f54236c6d6fab59acd8538125c16a16eadd160deaa2a7918ea4c5f8403706197971354c59f1d08a1a4dd4f561
ripemd-160
7834776ac81769a27f23609c92ed9d251706e0ad
Diameter
41842786
Circumference
131452989.10333
Area
1.3750898230277E+15
Volume
3.8358392797152E+22
Surface area
5.500359292111E+15
Circumference
131452989.10333
Perimeter
83685572
Area
437704685060449
Diagonal
29587317.724338
Surface area
2626228110362694
Volume
9.1573917340909E+21
Space diagonal
36236915.641116
Perimeter
62764179
Area
1.8953168830891E+14
Altitude
18118457.820558
Surface area
1.8953168830891E+14
Volume
1.0792089655262E+21
Height
9862439.2414458