20956979 is an odd 8-digits composite number following 20956978
and preceding 20956980 . In scientific notation, it is written as 2.0956979 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 20045784 positive integers (up to 20956979) that are relatively prime to 20956979.
20956979 has 4 divisors, whose sum is 21868176
The reverse of 20956979 is 97965902
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty million nine hundred fifty-six thousand nine hundred seventy-nine
Scientific notation
2.0956979 × 10^7
Engineering notation
2.0956979 × 10^6
Prime Factorization
23 × 911173
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20956979
Product of the distinct prime numbers
The prime factorization of 20956979 is 23 × 911173.
Since it has a total of 2 prime factors.
9 , 5 , 53 , 93 , 201 , 116 , 3390 , 3593 , 32966 , 27177 , 686482 , 146016 , 4198963 , 2746351 , 68801581 , 54989222 , 619808540 , 993883674 , 2972363902 , 6849309572
n×2
41913958
n×3
62870937
n×4
83827916
n×5
104784895
n÷2
10478489.5
n÷3
6985659.6666667
n÷3
5239244.75
n÷5
4191395.8
n2
439194968806441
n3
9.2041997381822E+21
n4
1.9289222062489E+29
n5
4.0424382168992E+36
2 √n
4577.8793125202
3 √n
275.70388935127
4 √n
67.660027435112
5 √n
29.12498669524
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
-20956978
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 20956979 can be divided by 4 positive divisors.
The sum of these divisors (counting 20956979) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111111100011100110011
3
Ternary
1110102201120102
4
Quaternary
1033330130303
5
Quinary
20331110404
6
Senary
2025103015
8
Octal
117743463
10
Decimal
20956979
12
Duodecimal
7027a6b
16
Hexadecimal
13fc733
20
Vigesimal
6ajc8j
36
Base36
ch6ib
md5
9a754c595e54228962f71bac9b4b8ab8
sha1
2911c11c966d107a2576845d3bcc74bad4c6e41c
sha256
c638657857c9f22617e4f2f2c18c487740a62884f1b6fe4f8ac61985a1ced23c
sha512
9a0e34a819cb6e9272312cc57faa54457358f0932414c697d75c64af0faef33027fa68e3f86dc5d6a2c9fa96c69dd6d74e53e9e3f86be9077156d9c04864b0e7
ripemd-160
79ae2968c627702d1e8c88e3628d14a2d3cd381c
Diameter
41913958
Circumference
131676582.53567
Area
1.3797716874959E+15
Volume
3.8554461706195E+22
Surface area
5.5190867499837E+15
Circumference
131676582.53567
Perimeter
83827916
Area
439194968806441
Diagonal
29637643.928168
Surface area
2635169812838646
Volume
9.2041997381822E+21
Space diagonal
36298552.401154
Perimeter
62870937
Area
1.9017700010035E+14
Altitude
18149276.200577
Surface area
1.9017700010035E+14
Volume
1.0847253417107E+21
Height
9879214.6427227