91008020 is an even 8-digits composite number following 91008019
and preceding 91008021 . In scientific notation, it is written as 9.1008020 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 12 positive divisors.
There are 36403200 positive integers (up to 91008020) that are relatively prime to 91008020.
91008020 has 12 divisors, whose sum is 191116884
The reverse of 91008020 is 02080019
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
ninety-one million eight thousand twenty
Scientific notation
9.1008020 × 10^7
Engineering notation
9.1008020 × 10^6
Prime Factorization
2 × 2 × 5 × 4550401
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
45504010
Product of the distinct prime numbers
The prime factorization of 91008020 is 2 × 2 × 5 × 4550401.
Since it has a total of 4 prime factors.
10 , 6 , 90 , 65 , 270 , 950 , 4718 , 9136 , 86284 , 9400 , 220698 , 656562 , 4450403 , 4916466 , 11853950 , 40627623 , 693122089 , 630345733 , 1964821827 , 4551691667
n×2
182016040
n×3
273024060
n×4
364032080
n×5
455040100
n÷2
45504010
n÷3
30336006.666667
n÷3
22752005
n÷5
18201604
n2
8282459704320400
n3
7.5377025841998E+23
n4
6.8599138753691E+31
n5
6.2430717916787E+39
2 √n
9539.8123671276
3 √n
449.80735787212
4 √n
97.671963055565
5 √n
39.067528096882
1 , 2 , 4 , 5 , 10 , 20 , 4550401 , 9100802 , 18201604 , 22752005 , 45504010 , 91008020
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-91008019
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 91008020 can be divided by 12 positive divisors.
The sum of these divisors (counting 91008020) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101011011001010110000010100
3
Ternary
20100020200112102
4
Quaternary
11123022300110
5
Quinary
141244224040
6
Senary
13010341232
8
Octal
533126024
10
Decimal
91008020
12
Duodecimal
2658a818
16
Hexadecimal
56cac14
20
Vigesimal
188g010
36
Base36
1i6m8k
md5
71bf0aa92f655b5e5f8692c465d087c1
sha1
1a18da928f996917622feb6621b1494e6869850a
sha256
3e16cbd3a0439f7bf3beaf93b897b9e5c31b2e1488f5bb347b0c77d50bb77688
sha512
9ecaa746c2e9a09b7faa8e0b786d39a65764fdda79a913086e57b6a7760f9aa47f14489ecfd3fb335ecae17454e075f9e0454fa13c41fef59784bcfc1e17d44c
ripemd-160
d781bebbf7b3336fa25cd32900857c32f31231f3
Diameter
182016040
Circumference
571820254.09951
Area
2.6020114560746E+16
Volume
3.1573854751289E+24
Surface area
1.0408045824299E+17
Circumference
571820254.09951
Perimeter
364032080
Area
8282459704320400
Diagonal
128704776.16872
Surface area
49694758225922400
Volume
7.5377025841998E+23
Space diagonal
157630514.53624
Perimeter
273024060
Area
3.5864102548812E+15
Altitude
78815257.268122
Surface area
3.5864102548812E+15
Volume
8.8832676864251E+22
Height
42901592.056241