20978090 is an even 8-digits composite number following 20978089
and preceding 20978091 . In scientific notation, it is written as 2.0978090 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 6813504 positive integers (up to 20978090) that are relatively prime to 20978090.
20978090 has 8 divisors, whose sum is 31516452
The reverse of 20978090 is 09087902
Previous prime number is 665
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million nine hundred seventy-eight thousand ninety
Scientific notation
2.0978090 × 10^7
Engineering notation
2.0978090 × 10^6
Prime Factorization
2 × 665 × 15773
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20978090
Product of the distinct prime numbers
The prime factorization of 20978090 is 2 × 665 × 15773.
Since it has a total of 3 prime factors.
10 , 4 , 51 , 7 , 634 , 297 , 5796 , 4245 , 75261 , 38852 , 92958 , 58124 , 4775193 , 5114478 , 85186908 , 13016968 , 421192808 , 220571240 , 9430087607 , 6977321617
n×2
41956180
n×3
62934270
n×4
83912360
n×5
104890450
n÷2
10489045
n÷3
6992696.6666667
n÷3
5244522.5
n÷5
4195618
n2
440080260048100
n3
9.2320433025124E+21
n4
1.93670635284E+29
n5
4.062840017345E+36
2 √n
4580.1844941006
3 √n
275.79643499783
4 √n
67.677060324017
5 √n
29.130852139808
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
-20978089
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 20978090 can be divided by 8 positive divisors.
The sum of these divisors (counting 20978090) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000001100110101010
3
Ternary
1110110210112022
4
Quaternary
1100001212222
5
Quinary
20332244330
6
Senary
2025344442
8
Octal
120014652
10
Decimal
20978090
12
Duodecimal
7038122
16
Hexadecimal
14019aa
20
Vigesimal
6b254a
36
Base36
chmsq
md5
5bb08a7eba01c0071f736768113664a4
sha1
35ff94cab186b54a928858534f97575fb047ee6b
sha256
73820c23ad35741e20bd20f5d557525ce562777061bdd93e44cfb83dddfdf547
sha512
126991dbdb91fb915ffdf32e4e53ebdd103300ba4c668dc6623729dc31a9c9b9051fe35a5804b440091c7cae442204ad827f962899f84fd7eb20c75141b5893e
ripemd-160
3fc350260f6b690ae4b191faa7e53bafa8509a41
Diameter
41956180
Circumference
131809226.86069
Area
1.382552911957E+15
Volume
3.8671092555728E+22
Surface area
5.530211647828E+15
Circumference
131809226.86069
Perimeter
83912360
Area
440080260048100
Diagonal
29667499.390683
Surface area
2640481560288600
Volume
9.2320433025124E+21
Space diagonal
36335117.725753
Perimeter
62934270
Area
1.9056034245286E+14
Altitude
18167558.862876
Surface area
1.9056034245286E+14
Volume
1.0880067372357E+21
Height
9889166.4635611