20921693 is an odd 8-digits composite number following 20921692
and preceding 20921694 . In scientific notation, it is written as 2.0921693 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 18856656 positive integers (up to 20921693) that are relatively prime to 20921693.
20921693 has 12 divisors, whose sum is 23189760
The reverse of 20921693 is 39612902
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million nine hundred twenty-one thousand six hundred ninety-three
Scientific notation
2.0921693 × 10^7
Engineering notation
2.0921693 × 10^6
Prime Factorization
13 × 13 × 43 × 2879
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1609361
Product of the distinct prime numbers
The prime factorization of 20921693 is 13 × 13 × 43 × 2879.
Since it has a total of 4 prime factors.
1 , 3 , 2 , 89 , 527 , 660 , 2434 , 23 , 40575 , 43165 , 769791 , 792131 , 5232100 , 3782077 , 3231158 , 61458960 , 274427624 , 895714290 , 1515185549 , 7977652733
n×2
41843386
n×3
62765079
n×4
83686772
n×5
104608465
n÷2
10460846.5
n÷3
6973897.6666667
n÷3
5230423.25
n÷5
4184338.6
n2
437717237986249
n3
9.1577856739562E+21
n4
1.9159638043031E+29
n5
4.0085206512742E+36
2 √n
4574.0237209704
3 √n
275.54906499073
4 √n
67.631529045042
5 √n
29.115172330934
1 , 13 , 43 , 169 , 559 , 2879 , 7267 , 37427 , 123797 , 486551 , 1609361 , 20921693
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921692
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921693 can be divided by 12 positive divisors.
The sum of these divisors (counting 20921693) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111110011110101011101
3
Ternary
1110100221011112
4
Quaternary
1033303311131
5
Quinary
20323443233
6
Senary
2024231405
8
Octal
117636535
10
Decimal
20921693
12
Duodecimal
700b565
16
Hexadecimal
13f3d5d
20
Vigesimal
6af44d
36
Base36
cgfa5
md5
0653d6db6d5554dc1c3f7a9c77b9e3cc
sha1
9699a21d214a8531cf1511de68792ddc0205d5c0
sha256
ed08041fb4a62f0b3d86a16f56663b269ee4562fd77caff50dbb1646d2f0868e
sha512
afd58ac4f3a2703136ebbcae4fa0aecfb29eabd5b170e1b91360c9ae4d32d0c8e245a01a3add04ee741571241c9c2e94eab090be53775af3ba1587ced2ff8603
ripemd-160
107033d296baf7c51517ac28eec66700df5ad9fb
Diameter
41843386
Circumference
131454874.05892
Area
1.3751292592072E+15
Volume
3.8360042928601E+22
Surface area
5.5005170368289E+15
Circumference
131454874.05892
Perimeter
83686772
Area
437717237986249
Diagonal
29587741.988406
Surface area
2626303427917494
Volume
9.1577856739562E+21
Space diagonal
36237435.256358
Perimeter
62765079
Area
1.8953712388523E+14
Altitude
18118717.628179
Surface area
1.8953712388523E+14
Volume
1.0792553917846E+21
Height
9862580.6628021