20996978 is an even 8-digits composite number following 20996977
and preceding 20996979 . In scientific notation, it is written as 2.0996978 × 10^7.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 10498488 positive integers (up to 20996978) that are relatively prime to 20996978.
20996978 has 4 divisors, whose sum is 31495470
The reverse of 20996978 is 87969902
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 50
Digital Root 5
Name
twenty million nine hundred ninety-six thousand nine hundred seventy-eight
Scientific notation
2.0996978 × 10^7
Engineering notation
2.0996978 × 10^6
Prime Factorization
2 × 10498489
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20996978
Product of the distinct prime numbers
The prime factorization of 20996978 is 2 × 10498489.
Since it has a total of 2 prime factors.
5 , 8 , 63 , 41 , 542 , 15 , 5585 , 5080 , 11348 , 65865 , 836058 , 738714 , 5014856 , 2406995 , 68233763 , 39587845 , 340345909 , 909962425 , 8780748100 , 9228892509
n×2
41993956
n×3
62990934
n×4
83987912
n×5
104984890
n÷2
10498489
n÷3
6998992.6666667
n÷3
5249244.5
n÷5
4199395.6
n2
440873085132484
n3
9.2570024693189E+21
n4
1.9436907719423E+29
n5
4.0811632377276E+36
2 √n
4582.2459558605
3 √n
275.87918292569
4 √n
67.692288747394
5 √n
29.13609594876
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
-20996977
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 20996978 can be divided by 4 positive divisors.
The sum of these divisors (counting 20996978) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000110001101110010
3
Ternary
1110111202102212
4
Quaternary
1100012031302
5
Quinary
20333400403
6
Senary
2030012122
8
Octal
120061562
10
Decimal
20996978
12
Duodecimal
7047042
16
Hexadecimal
1406372
20
Vigesimal
6b4c8i
36
Base36
ci1de
md5
589d83c351018f6138597fca02dba290
sha1
cbb15649c471d4486786fe545f8570bdeaca1af9
sha256
b140a770436da6b3b1757c65007d0f0e2cc7bf528318b02b7ddf59208fecaaf2
sha512
6abadade218320a6efb2792c7d2fa3a9731ff6c37b35919d2d31d310aff36d10a947f32add79be37362225e7e8e408c94d493e90aa619527bec42dc31ec84984
ripemd-160
41f2478580d022e0edb77efdb12e3a7b1bcaac6f
Diameter
41993956
Circumference
131927903.66477
Area
1.3850436454177E+15
Volume
3.8775641269166E+22
Surface area
5.5401745816707E+15
Circumference
131927903.66477
Perimeter
83987912
Area
440873085132484
Diagonal
29694211.05645
Surface area
2645238510794904
Volume
9.2570024693189E+21
Space diagonal
36367832.701406
Perimeter
62990934
Area
1.9090364578478E+14
Altitude
18183916.350703
Surface area
1.9090364578478E+14
Volume
1.0909482032527E+21
Height
9898070.3521498