20661497 is an odd 8-digits composite number following 20661496
and preceding 20661498 . In scientific notation, it is written as 2.0661497 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 20370420 positive integers (up to 20661497) that are relatively prime to 20661497.
20661497 has 4 divisors, whose sum is 20952576
The reverse of 20661497 is 79416602
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million six hundred sixty-one thousand four hundred ninety-seven
Scientific notation
2.0661497 × 10^7
Engineering notation
2.0661497 × 10^6
Prime Factorization
71 × 291007
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20661497
Product of the distinct prime numbers
The prime factorization of 20661497 is 71 × 291007.
Since it has a total of 2 prime factors.
7 , 7 , 93 , 24 , 962 , 64 , 1530 , 5275 , 81151 , 16253 , 390386 , 369172 , 5171805 , 6905442 , 1329590 , 49932995 , 429194343 , 167273210 , 2598340595 , 486982510
n×2
41322994
n×3
61984491
n×4
82645988
n×5
103307485
n÷2
10330748.5
n÷3
6887165.6666667
n÷3
5165374.25
n÷5
4132299.4
n2
426897458281009
n3
8.8203405535807E+21
n4
1.8224143988679E+29
n5
3.7653809634965E+36
2 √n
4545.4919425734
3 √n
274.40199309639
4 √n
67.42026359021
5 √n
29.042390253601
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
-20661496
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 20661497 can be divided by 4 positive divisors.
The sum of these divisors (counting 20661497) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110110100010011111001
3
Ternary
1102212201020122
4
Quaternary
1032310103321
5
Quinary
20242131442
6
Senary
2014503025
8
Octal
116642371
10
Decimal
20661497
12
Duodecimal
6b04a75
16
Hexadecimal
13b44f9
20
Vigesimal
692deh
36
Base36
cauih
md5
c17db32cd9505e4f3115bda0ebfb1ed6
sha1
e83c3e842a532954f0a4f980934ed53bd60db2d3
sha256
229817055e4f7665eb52b40441ee19ea453106362533283e57615f181034fce3
sha512
07e78006702769f065c9799d9abae9e413a089a9c3fd31ebcfa45c175a0d9bb3b5114c2ae06f2f8967ead5bfbff383175b390cad25200f65a729f2f432e000c1
ripemd-160
1bb88416a33aedc4b110b3519093ee8b7ac7b8de
Diameter
41322994
Circumference
129820014.37474
Area
1.3411379187718E+15
Volume
3.6946556113719E+22
Surface area
5.3645516750871E+15
Circumference
129820014.37474
Perimeter
82645988
Area
426897458281009
Diagonal
29219769.276331
Surface area
2561384749686054
Volume
8.8203405535807E+21
Space diagonal
35786762.564432
Perimeter
61984491
Area
1.8485202184118E+14
Altitude
17893381.282216
Surface area
1.8485202184118E+14
Volume
1.0394871029686E+21
Height
9739923.0921103