20809970 is an even 8-digits composite number following 20809969
and preceding 20809971 . In scientific notation, it is written as 2.0809970 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 8297520 positive integers (up to 20809970) that are relatively prime to 20809970.
20809970 has 16 divisors, whose sum is 37577088
The reverse of 20809970 is 07990802
Previous prime number is 331
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million eight hundred nine thousand nine hundred seventy
Scientific notation
2.0809970 × 10^7
Engineering notation
2.0809970 × 10^6
Prime Factorization
2 × 5 × 331 × 6287
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20809970
Product of the distinct prime numbers
The prime factorization of 20809970 is 2 × 5 × 331 × 6287.
Since it has a total of 4 prime factors.
6 , 4 , 40 , 81 , 656 , 233 , 2549 , 3974 , 82091 , 55737 , 13619 , 302544 , 3354787 , 7091358 , 38073209 , 31386008 , 119485823 , 311504780 , 3316790270 , 647350675
n×2
41619940
n×3
62429910
n×4
83239880
n×5
104049850
n÷2
10404985
n÷3
6936656.6666667
n÷3
5202492.5
n÷5
4161994
n2
433054851400900
n3
9.0118584660072E+21
n4
1.8753650432186E+29
n5
3.9026290288427E+36
2 √n
4561.7946030044
3 √n
275.05770689801
4 √n
67.541058645867
5 √n
29.084010370281
1 , 2 , 5 , 10 , 331 , 662 , 1655 , 3310 , 6287 , 12574 , 31435 , 62870 , 2080997 , 4161994 , 10404985 , 20809970
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
-20809969
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 20809970 can be divided by 16 positive divisors.
The sum of these divisors (counting 20809970) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111011000100011110010
3
Ternary
1110011020220122
4
Quaternary
1033120203302
5
Quinary
20311404340
6
Senary
2022010242
8
Octal
117304362
10
Decimal
20809970
12
Duodecimal
6b76982
16
Hexadecimal
13d88f2
20
Vigesimal
6a14ia
36
Base36
ce12q
md5
b5bf4f569dc3aeee4333f1e38129cf72
sha1
b84c38457852ddae7b4d9a60275d2b0198b52f11
sha256
a9a15542c9909ef2db860360fe8dcd091c57879fe4d2cfba94997340127c4750
sha512
78490c562cc93b4a11cef05a9478e645bb2fbc00b9982de3485637092065f369276671a34c9ea7382497670d481c0405c0ec54bedd393643feee54cc8d72a8d3
ripemd-160
3ced130f92c16ccbc0f1be76d301bfe06775bd7c
Diameter
41619940
Circumference
130752897.74685
Area
1.3604819397625E+15
Volume
3.7748784469332E+22
Surface area
5.4419277590499E+15
Circumference
130752897.74685
Perimeter
83239880
Area
433054851400900
Diagonal
29429741.806577
Surface area
2598329108405400
Volume
9.0118584660072E+21
Space diagonal
36043925.343984
Perimeter
62429910
Area
1.8751825127264E+14
Altitude
18021962.671992
Surface area
1.8751825127264E+14
Volume
1.0620577054012E+21
Height
9809913.9355257