20718087 is an odd 8-digits composite number following 20718086
and preceding 20718088 . In scientific notation, it is written as 2.0718087 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 11999232 positive integers (up to 20718087) that are relatively prime to 20718087.
20718087 has 8 divisors, whose sum is 22750000
The reverse of 20718087 is 78081702
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million seven hundred eighteen thousand eighty-seven
Scientific notation
2.0718087 × 10^7
Engineering notation
2.0718087 × 10^6
Prime Factorization
51 × 13 × 31249
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20718087
Product of the distinct prime numbers
The prime factorization of 20718087 is 51 × 13 × 31249.
Since it has a total of 3 prime factors.
9 , 10 , 56 , 98 , 168 , 408 , 1490 , 5511 , 7463 , 99199 , 807650 , 592778 , 5682043 , 6486973 , 47774564 , 9851758 , 976325044 , 555267411 , 6399572657 , 8090809681
n×2
41436174
n×3
62154261
n×4
82872348
n×5
103590435
n÷2
10359043.5
n÷3
6906029
n÷3
5179521.75
n÷5
4143617.4
n2
429239128939569
n3
8.8930136171742E+21
n4
1.842462298128E+29
n5
3.8172294186836E+36
2 √n
4551.7125348598
3 √n
274.65228559852
4 √n
67.466380774871
5 √n
29.05828175699
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
-20718086
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 20718087 can be divided by 8 positive divisors.
The sum of these divisors (counting 20718087) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111000010001000000111
3
Ternary
1102222120212120
4
Quaternary
1033002020013
5
Quinary
20300434322
6
Senary
2020021023
8
Octal
117021007
10
Decimal
20718087
12
Duodecimal
6b31773
16
Hexadecimal
13c2207
20
Vigesimal
699f47
36
Base36
cc26f
md5
1c46d4be4f33ff75f0794f5068bf5e80
sha1
5fee2171cb829682c3fe1f9709ad8db6d7ba6b41
sha256
cada1e7885b29541c6b4671c492e7b24c5b908250a01a5232ecee5e4544cd696
sha512
a46c7c6b4dd7b4625105f0c20eb9d0e58f0594136aa295002035f32b20fc26f6d32648f832741eff650e817b1c11809ae6241fcd0b03fbcddff52bdfc28fb49f
ripemd-160
8a2beee268b087012a476907b79462dbbc205750
Diameter
41436174
Circumference
130175579.83127
Area
1.3484944941098E+15
Volume
3.7250968330651E+22
Surface area
5.3939779764393E+15
Circumference
130175579.83127
Perimeter
82872348
Area
429239128939569
Diagonal
29299799.621826
Surface area
2575434773637414
Volume
8.8930136171742E+21
Space diagonal
35884779.319632
Perimeter
62154261
Area
1.8586599497999E+14
Altitude
17942389.659816
Surface area
1.8586599497999E+14
Volume
1.048051705648E+21
Height
9766599.8739419