20921321 is an odd 8-digits prime number following 20921320
and preceding 20921322 . In scientific notation, it is written as 2.0921321 × 10^7.
The sum of its digits is 20. It has a total of 1 prime factors and 2 positive divisors.
There are 20921320 positive integers (up to 20921321) that are relatively prime to 20921321.
20921321 has 2 divisors, whose sum is 20921322
The reverse of 20921321 is 12312902
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million nine hundred twenty-one thousand three hundred twenty-one
Scientific notation
2.0921321 × 10^7
Engineering notation
2.0921321 × 10^6
Prime Factorization
20921321
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20921321
Product of the distinct prime numbers
The prime factorization of 20921321 is 20921321.
Since it has a total of 1 prime factors.
4 , 2 , 17 , 24 , 389 , 495 , 1653 , 4399 , 1999 , 64648 , 549455 , 198493 , 5622271 , 8365101 , 76767820 , 23025070 , 246084564 , 389492348 , 1597728506 , 2685343206
n×2
41842642
n×3
62763963
n×4
83685284
n×5
104606605
n÷2
10460660.5
n÷3
6973773.6666667
n÷3
5230330.25
n÷5
4184264.2
n2
437701672385041
n3
9.1572971902043E+21
n4
1.9158275400866E+29
n5
4.0081642946792E+36
2 √n
4573.9830563744
3 √n
275.5474318396
4 √n
67.631228410952
5 √n
29.115068793222
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20921322
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10460661
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4573.9831656883
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999044037
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921321 can be divided by 2 positive divisors.
The sum of these divisors (counting 20921321) is 20921322, the average is 10460661.
Base
System
Value
2
Binary
1001111110011101111101001
3
Ternary
1110100220122202
4
Quaternary
1033303233221
5
Quinary
20323440241
6
Senary
2024225545
8
Octal
117635751
10
Decimal
20921321
12
Duodecimal
700b2b5
16
Hexadecimal
13f3be9
20
Vigesimal
6af361
36
Base36
cgezt
md5
b992be50a20ca088f25fa1113cc9325e
sha1
c75612d011dd96887303591976ad53e35321eaa6
sha256
ac8d384cc683a38349a491aa8bac3cd759e0a73f06b601cc059a5856782658d7
sha512
9eb59c9ec779d553950a19dd61ba63dd176fbc3d9f562526e2be6a16972a5d518d4051cd88d74c85176ebc09a8c9b7a6deffd65c7984955b3ad26504b0b58046
ripemd-160
a768ceba69e1bc7e833dfa6a3ebc1dbadb22ea6a
Diameter
41842642
Circumference
131452536.71399
Area
1.3750803584288E+15
Volume
3.8357996772646E+22
Surface area
5.5003214337152E+15
Circumference
131452536.71399
Perimeter
83685284
Area
437701672385041
Diagonal
29587215.900961
Surface area
2626210034310246
Volume
9.1572971902043E+21
Space diagonal
36236790.933458
Perimeter
62763963
Area
1.8953038378219E+14
Altitude
18118395.466729
Surface area
1.8953038378219E+14
Volume
1.0791978234223E+21
Height
9862405.3003203