20981057 is an odd 8-digits composite number following 20981056
and preceding 20981058 . In scientific notation, it is written as 2.0981057 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 20320560 positive integers (up to 20981057) that are relatively prime to 20981057.
20981057 has 8 divisors, whose sum is 21651840
The reverse of 20981057 is 75018902
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million nine hundred eighty-one thousand fifty-seven
Scientific notation
2.0981057 × 10^7
Engineering notation
2.0981057 × 10^6
Prime Factorization
79 × 53 × 5011
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20981057
Product of the distinct prime numbers
The prime factorization of 20981057 is 79 × 53 × 5011.
Since it has a total of 3 prime factors.
10 , 4 , 96 , 17 , 70 , 126 , 2828 , 9274 , 22885 , 46664 , 570415 , 16097 , 2926698 , 6556596 , 16263765 , 71744484 , 608792002 , 986735759 , 4316854554 , 23640389
n×2
41962114
n×3
62943171
n×4
83924228
n×5
104905285
n÷2
10490528.5
n÷3
6993685.6666667
n÷3
5245264.25
n÷5
4196211.4
n2
440204752837249
n3
9.2359610109492E+21
n4
1.937802244205E+29
n5
4.0657139340394E+36
2 √n
4580.5083778987
3 √n
275.80943664936
4 √n
67.679453144205
5 √n
29.131676107566
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
-20981056
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 20981057 can be divided by 8 positive divisors.
The sum of these divisors (counting 20981057) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000010010101000001
3
Ternary
1110110221121012
4
Quaternary
1100002111001
5
Quinary
20332343212
6
Senary
2025410305
8
Octal
120022501
10
Decimal
20981057
12
Duodecimal
7039995
16
Hexadecimal
1402541
20
Vigesimal
6b2cch
36
Base36
chp35
md5
328d99c12ef012dfd614b78a64a90830
sha1
00352a419d1269e36c075cc00cfb6c39940f0aef
sha256
445eaecf5b76616d90bf716dd0df11f44b817a3edaaf42699d9b229fb5a76ca3
sha512
eb963da3243777975aac321808b4ae159d4ee4d4f9b154db87b034e6da8e0112b5c607cce1b03ecc3882e7b6dfa97bd591f88ee3bb09e67a10a6d5def9d65db9
ripemd-160
ac6486288a036f662890f9d1b701f1489baf5d23
Diameter
41962114
Circumference
131827869.0715
Area
1.3829440175888E+15
Volume
3.8687503014453E+22
Surface area
5.5317760703552E+15
Circumference
131827869.0715
Perimeter
83924228
Area
440204752837249
Diagonal
29671695.362323
Surface area
2641228517023494
Volume
9.2359610109492E+21
Space diagonal
36340256.720499
Perimeter
62943171
Area
1.9061424941185E+14
Altitude
18170128.360249
Surface area
1.9061424941185E+14
Volume
1.0884684436028E+21
Height
9890565.1207743