20921369 is an odd 8-digits composite number following 20921368
and preceding 20921370 . In scientific notation, it is written as 2.0921369 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 17932596 positive integers (up to 20921369) that are relatively prime to 20921369.
20921369 has 4 divisors, whose sum is 23910144
The reverse of 20921369 is 96312902
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million nine hundred twenty-one thousand three hundred sixty-nine
Scientific notation
2.0921369 × 10^7
Engineering notation
2.0921369 × 10^6
Prime Factorization
7 × 2988767
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20921369
Product of the distinct prime numbers
The prime factorization of 20921369 is 7 × 2988767.
Since it has a total of 2 prime factors.
7 , 4 , 54 , 81 , 672 , 520 , 7266 , 5123 , 6984 , 61843 , 367800 , 816093 , 2964279 , 7684732 , 47565904 , 7677465 , 780933253 , 326697630 , 3131918991 , 9479605745
n×2
41842738
n×3
62764107
n×4
83685476
n×5
104606845
n÷2
10460684.5
n÷3
6973789.6666667
n÷3
5230342.25
n÷5
4184273.8
n2
437703680834161
n3
9.1573602193897E+21
n4
1.9158451221577E+29
n5
4.0082102747512E+36
2 √n
4573.9883034394
3 √n
275.54764256986
4 √n
67.631267202673
5 √n
29.115082153009
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
-20921368
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 20921369 can be divided by 4 positive divisors.
The sum of these divisors (counting 20921369) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110011110000011001
3
Ternary
1110100220201112
4
Quaternary
1033303300121
5
Quinary
20323440434
6
Senary
2024230105
8
Octal
117636031
10
Decimal
20921369
12
Duodecimal
700b335
16
Hexadecimal
13f3c19
20
Vigesimal
6af389
36
Base36
cgf15
md5
f439744b38ad89122bb596b765fd5a69
sha1
d167bb1cbcf225ebcf22ef88631ead872fe1316a
sha256
ae5aa58d1c3cc5edf72d1c8fffa5790b2733f2aa1bf3e73baede4393c0217adc
sha512
f8fcd900f9e885ad15d7736d2539ca346fe99ff86b91a003f262eda316e744095e8b6a687acee8b0f2344e5a284293001162f533824a42f5f87672c7136e7a97
ripemd-160
f2802731dab00146a53d4106558d0e55f3d00a90
Diameter
41842738
Circumference
131452838.30688
Area
1.3750866681578E+15
Volume
3.835826078868E+22
Surface area
5.5003466726312E+15
Circumference
131452838.30688
Perimeter
83685476
Area
437703680834161
Diagonal
29587283.783212
Surface area
2626222085004966
Volume
9.1573602193897E+21
Space diagonal
36236874.071896
Perimeter
62764107
Area
1.8953125346617E+14
Altitude
18118437.035948
Surface area
1.8953125346617E+14
Volume
1.0792052514831E+21
Height
9862427.9277373