20897515 is an odd 8-digits composite number following 20897514
and preceding 20897516 . In scientific notation, it is written as 2.0897515 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 16690080 positive integers (up to 20897515) that are relatively prime to 20897515.
20897515 has 8 divisors, whose sum is 25118928
The reverse of 20897515 is 51579802
Previous prime number is 661
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million eight hundred ninety-seven thousand five hundred fifteen
Scientific notation
2.0897515 × 10^7
Engineering notation
2.0897515 × 10^6
Prime Factorization
5 × 661 × 6323
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20897515
Product of the distinct prime numbers
The prime factorization of 20897515 is 5 × 661 × 6323.
Since it has a total of 3 prime factors.
2 , 10 , 59 , 8 , 748 , 857 , 4583 , 1133 , 90435 , 92541 , 438795 , 299086 , 9586960 , 9905474 , 84954042 , 58165144 , 471246660 , 667750692 , 9815169297 , 4665340745
n×2
41795030
n×3
62692545
n×4
83590060
n×5
104487575
n÷2
10448757.5
n÷3
6965838.3333333
n÷3
5224378.75
n÷5
4179503
n2
436706133175225
n3
9.1260729686213E+21
n4
1.9071224675286E+29
n5
3.9854120372015E+36
2 √n
4571.3799885811
3 √n
275.44287866177
4 √n
67.611981102325
5 √n
29.108439871312
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
-20897514
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 20897515 can be divided by 8 positive divisors.
The sum of these divisors (counting 20897515) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111101101111011101011
3
Ternary
1110022201000001
4
Quaternary
1033231323223
5
Quinary
20322210030
6
Senary
2023523431
8
Octal
117557353
10
Decimal
20897515
12
Duodecimal
6bb9577
16
Hexadecimal
13edeeb
20
Vigesimal
6ac3ff
36
Base36
cfwmj
md5
3a6fcb78ffc08c63494e5af01d2df342
sha1
892b0f892ee14e099826eabf51d66929d06eb10e
sha256
84022e0ffce1e5843047bf80bf6678bc34933c553586e6e36b0409a6037d1933
sha512
819f78fd0fedae3bf412c12e5ef2946cc6ef36f1d33e52189d6f1c5e0ef2d4c6c1f2bd38b30486924b78d5ab3864a970ebb1c5c683321f73ba3dfa6b121f6cb1
ripemd-160
cabc64268e5ec5743ed8f96ce780085622b68d50
Diameter
41795030
Circumference
131302959.20457
Area
1.3719527797609E+15
Volume
3.8227205059127E+22
Surface area
5.4878111190436E+15
Circumference
131302959.20457
Perimeter
83590060
Area
436706133175225
Diagonal
29553549.132895
Surface area
2620236799051350
Volume
9.1260729686213E+21
Space diagonal
36195557.731933
Perimeter
62692545
Area
1.8909930265911E+14
Altitude
18097778.865966
Surface area
1.8909930265911E+14
Volume
1.0755180136192E+21
Height
9851183.0442984