20797681 is an odd 8-digits composite number following 20797680
and preceding 20797682 . In scientific notation, it is written as 2.0797681 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors.
There are 18273024 positive integers (up to 20797681) that are relatively prime to 20797681.
20797681 has 16 divisors, whose sum is 23531904
The reverse of 20797681 is 18679702
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million seven hundred ninety-seven thousand six hundred eighty-one
Scientific notation
2.0797681 × 10^7
Engineering notation
2.0797681 × 10^6
Prime Factorization
23 × 17 × 43 × 1237
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20797681
Product of the distinct prime numbers
The prime factorization of 20797681 is 23 × 17 × 43 × 1237.
Since it has a total of 4 prime factors.
10 , 10 , 64 , 24 , 597 , 510 , 3080 , 8138 , 27675 , 70327 , 402426 , 644372 , 6621050 , 9156451 , 44894810 , 97961556 , 535157712 , 851734211 , 9871871480 , 328270147
n×2
41595362
n×3
62393043
n×4
83190724
n×5
103988405
n÷2
10398840.5
n÷3
6932560.3333333
n÷3
5199420.25
n÷5
4159536.2
n2
432543534977761
n3
8.9959024590798E+21
n4
1.8709390965106E+29
n5
3.8911194499655E+36
2 √n
4560.4474561166
3 √n
275.00355257119
4 √n
67.53108510987
5 √n
29.080574537751
1 , 17 , 23 , 43 , 391 , 731 , 989 , 1237 , 16813 , 21029 , 28451 , 53191 , 483667 , 904247 , 1223393 , 20797681
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
-20797680
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 20797681 can be divided by 16 positive divisors.
The sum of these divisors (counting 20797681) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010101100011110001
3
Ternary
1110010122001111
4
Quaternary
1033111203301
5
Quinary
20311011211
6
Senary
2021433321
8
Octal
117254361
10
Decimal
20797681
12
Duodecimal
6b6b841
16
Hexadecimal
13d58f1
20
Vigesimal
69je41
36
Base36
cdrld
md5
5274e37cbe652ae9f573a699937582a6
sha1
4f568f5f9759c795a6006da3d74506933512c13f
sha256
303c1bdb1c224844ab40bb4da9237cdcc39239db8132e9e107f83cf7c459030a
sha512
d760d38507293cf9332544f436cd81c5f2529715e5a55c42bc251aa2988ac391ca7caf2573127e40141e2015565e336f97b285b14671f9233cb8156a7537c309
ripemd-160
367faebb221a12c2663e53ecec177a31a806c74f
Diameter
41595362
Circumference
130675683.68261
Area
1.3588755918439E+15
Volume
3.7681948103807E+22
Surface area
5.4355023673756E+15
Circumference
130675683.68261
Perimeter
83190724
Area
432543534977761
Diagonal
29412362.536109
Surface area
2595261209866566
Volume
8.9959024590798E+21
Space diagonal
36022640.17161
Perimeter
62393043
Area
1.8729684476673E+14
Altitude
18011320.085805
Surface area
1.8729684476673E+14
Volume
1.0601772719513E+21
Height
9804120.8453697