20697745 is an odd 8-digits composite number following 20697744
and preceding 20697746 . In scientific notation, it is written as 2.0697745 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors.
There are 15600384 positive integers (up to 20697745) that are relatively prime to 20697745.
20697745 has 16 divisors, whose sum is 26288640
The reverse of 20697745 is 54779602
Previous prime number is 223
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million six hundred ninety-seven thousand seven hundred forty-five
Scientific notation
2.0697745 × 10^7
Engineering notation
2.0697745 × 10^6
Prime Factorization
5 × 19 × 223 × 977
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20697745
Product of the distinct prime numbers
The prime factorization of 20697745 is 5 × 19 × 223 × 977.
Since it has a total of 4 prime factors.
2 , 6 , 91 , 76 , 902 , 348 , 9871 , 2661 , 76529 , 82687 , 115850 , 859140 , 593037 , 6162210 , 79565275 , 77532804 , 387906940 , 575757905 , 7823188 , 141109183
n×2
41395490
n×3
62093235
n×4
82790980
n×5
103488725
n÷2
10348872.5
n÷3
6899248.3333333
n÷3
5174436.25
n÷5
4139549
n2
428396648085025
n3
8.8668445809186E+21
n4
1.8352368809048E+29
n5
3.7985264975564E+36
2 √n
4549.4774425202
3 √n
274.56236728525
4 √n
67.449814251191
5 √n
29.052573354918
1 , 5 , 19 , 95 , 223 , 977 , 1115 , 4237 , 4885 , 18563 , 21185 , 92815 , 217871 , 1089355 , 4139549 , 20697745
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20697744
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20697745 can be divided by 16 positive divisors.
The sum of these divisors (counting 20697745) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111101001010010001
3
Ternary
1102221112222011
4
Quaternary
1032331022101
5
Quinary
20244311440
6
Senary
2015342521
8
Octal
116751221
10
Decimal
20697745
12
Duodecimal
6b21a41
16
Hexadecimal
13bd291
20
Vigesimal
697475
36
Base36
cbmhd
md5
94714ec874ceae7bc03511fc31647715
sha1
33ee8829a887669d8653147653342b995656648f
sha256
aacfab0d55383b5cc9c1a60c132d73b13e82ecb113e8f4118db292718ac17a9d
sha512
c9bc40cac59a58d37d55961cd0b91fdc67d5b2fc8e8fc54f82766f92974a45e0d8923d3c7cd90a7d3887fa19d03ee36bd9cabb12bbedbf4bc5b0119655f90aa3
ripemd-160
0eac244c0f53afa738489875d512de1837482a39
Diameter
41395490
Circumference
130047767.27575
Area
1.3458477624464E+15
Volume
3.7141351727915E+22
Surface area
5.3833910497856E+15
Circumference
130047767.27575
Perimeter
82790980
Area
428396648085025
Diagonal
29271031.68954
Surface area
2570379888510150
Volume
8.8668445809186E+21
Space diagonal
35849545.942105
Perimeter
62093235
Area
1.8550119006887E+14
Altitude
17924772.971052
Surface area
1.8550119006887E+14
Volume
1.0449676551491E+21
Height
9757010.56318