20206978 is an even 8-digits composite number following 20206977
and preceding 20206979 . In scientific notation, it is written as 2.0206978 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 8888400 positive integers (up to 20206978) that are relatively prime to 20206978.
20206978 has 16 divisors, whose sum is 34133760
The reverse of 20206978 is 87960202
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million two hundred six thousand nine hundred seventy-eight
Scientific notation
2.0206978 × 10^7
Engineering notation
2.0206978 × 10^6
Prime Factorization
2 × 11 × 31 × 29629
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20206978
Product of the distinct prime numbers
The prime factorization of 20206978 is 2 × 11 × 31 × 29629.
Since it has a total of 4 prime factors.
4 , 7 , 87 , 71 , 796 , 859 , 4213 , 8923 , 13027 , 54461 , 15240 , 835439 , 8325318 , 8420244 , 59930140 , 85729447 , 294058123 , 172444761 , 1489008488 , 5324777439
n×2
40413956
n×3
60620934
n×4
80827912
n×5
101034890
n÷2
10103489
n÷3
6735659.3333333
n÷3
5051744.5
n÷5
4041395.6
n2
408321959892484
n3
8.2509528604643E+21
n4
1.6672682293044E+29
n5
3.3690452429653E+36
2 √n
4495.21723613
3 √n
272.37492450393
4 √n
67.046381230682
5 √n
28.913473849976
1 , 2 , 11 , 22 , 31 , 62 , 341 , 682 , 29629 , 59258 , 325919 , 651838 , 918499 , 1836998 , 10103489 , 20206978
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20206977
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20206978 can be divided by 16 positive divisors.
The sum of these divisors (counting 20206978) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000101010110000010
3
Ternary
1102000121202121
4
Quaternary
1031011112002
5
Quinary
20133110403
6
Senary
2001034454
8
Octal
115052602
10
Decimal
20206978
12
Duodecimal
6925a2a
16
Hexadecimal
1345582
20
Vigesimal
665h8i
36
Base36
c13sy
md5
b32966cb44d63feda6d4279a2669b131
sha1
ee4419962508dc15fb8efee78d611f4060418506
sha256
9aafc556609120f9f3d862be00384129e173289f51995adb049fb1aca867ecfb
sha512
7e14f2af3eb31a92afb10209c0bdad30ec445970bad404689940ecafa5f51b34cf4e09ca40ac855c15dde772f092d6e497e84986a79fde42454640d54ed3dcc1
ripemd-160
b80fe3c9afed292fc3899fbf40fd3efb63f009d8
Diameter
40413956
Circumference
126964187.2721
Area
1.2827812694976E+15
Volume
3.4561510522067E+22
Surface area
5.1311250779905E+15
Circumference
126964187.2721
Perimeter
80827912
Area
408321959892484
Diagonal
28576982.342175
Surface area
2449931759354904
Volume
8.2509528604643E+21
Space diagonal
34999512.563427
Perimeter
60620934
Area
1.7680859509497E+14
Altitude
17499756.281713
Surface area
1.7680859509497E+14
Volume
9.7238411981414E+20
Height
9525660.7807249