20921666 is an even 8-digits composite number following 20921665
and preceding 20921667 . In scientific notation, it is written as 2.0921666 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 10408068 positive integers (up to 20921666) that are relatively prime to 20921666.
20921666 has 8 divisors, whose sum is 31540800
The reverse of 20921666 is 66612902
Previous prime number is 199
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million nine hundred twenty-one thousand six hundred sixty-six
Scientific notation
2.0921666 × 10^7
Engineering notation
2.0921666 × 10^6
Prime Factorization
2 × 199 × 52567
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20921666
Product of the distinct prime numbers
The prime factorization of 20921666 is 2 × 199 × 52567.
Since it has a total of 3 prime factors.
6 , 2 , 82 , 45 , 977 , 911 , 6915 , 4609 , 17504 , 94810 , 26676 , 284632 , 1300496 , 1173484 , 51400444 , 28451532 , 436509244 , 831896883 , 4739131067 , 8764795636
n×2
41843332
n×3
62764998
n×4
83686664
n×5
104608330
n÷2
10460833
n÷3
6973888.6666667
n÷3
5230416.5
n÷5
4184333.2
n2
437716108215556
n3
9.1577502189057E+21
n4
1.9159539139137E+29
n5
4.0084947858296E+36
2 √n
4574.02076952
3 √n
275.54894645622
4 √n
67.631507224961
5 √n
29.115164816149
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
-20921665
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 20921666 can be divided by 8 positive divisors.
The sum of these divisors (counting 20921666) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110011110101000010
3
Ternary
1110100221010112
4
Quaternary
1033303311002
5
Quinary
20323443131
6
Senary
2024231322
8
Octal
117636502
10
Decimal
20921666
12
Duodecimal
700b542
16
Hexadecimal
13f3d42
20
Vigesimal
6af436
36
Base36
cgf9e
md5
d6b72a5fec46ede5afdd2f72f7d611f3
sha1
de335679b13a30d01667fede1869001688e97648
sha256
5ed5b4eaab4992b5d2db20a40be31bdafac804385efb0fe6607c9a4c0ccb3536
sha512
c980e6df0c41a8c6caed9619affd96e3e336903353990ac0cd8b5504cf585d0ee30cc021ffe09563ce2762bf98f93e0a50679da90f9ce286fadd6709c1700a33
ripemd-160
3762c6bcd6948228646f157894bba2455df5a666
Diameter
41843332
Circumference
131454704.41292
Area
1.3751257099279E+15
Volume
3.8359894414833E+22
Surface area
5.5005028397116E+15
Circumference
131454704.41292
Perimeter
83686664
Area
437716108215556
Diagonal
29587703.80464
Surface area
2626296649293336
Volume
9.1577502189057E+21
Space diagonal
36237388.490986
Perimeter
62764998
Area
1.8953663468016E+14
Altitude
18118694.245493
Surface area
1.8953663468016E+14
Volume
1.0792512133668E+21
Height
9862567.93488