91008021 is an odd 8-digits composite number following 91008020
and preceding 91008022 . In scientific notation, it is written as 9.1008021 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 52705536 positive integers (up to 91008021) that are relatively prime to 91008021.
91008021 has 16 divisors, whose sum is 129254400
The reverse of 91008021 is 12080019
Previous prime number is 169
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
ninety-one million eight thousand twenty-one
Scientific notation
9.1008021 × 10^7
Engineering notation
9.1008021 × 10^6
Prime Factorization
3 × 17 × 169 × 10559
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
91008021
Product of the distinct prime numbers
The prime factorization of 91008021 is 3 × 17 × 169 × 10559.
Since it has a total of 4 prime factors.
9 , 7 , 95 , 33 , 70 , 132 , 7455 , 9094 , 58189 , 76330 , 880421 , 509505 , 8038280 , 1119249 , 59580663 , 86266551 , 810305473 , 584802098 , 371192743 , 428190508
n×2
182016042
n×3
273024063
n×4
364032084
n×5
455040105
n÷2
45504010.5
n÷3
30336007
n÷3
22752005.25
n÷5
18201604.2
n2
8282459886336441
n3
7.5377028326736E+23
n4
6.8599141768772E+31
n5
6.2430721346744E+39
2 √n
9539.8124195395
3 √n
449.80735951962
4 √n
97.67196332387
5 √n
39.067528182737
1 , 3 , 17 , 51 , 169 , 507 , 2873 , 8619 , 10559 , 31677 , 179503 , 538509 , 1784471 , 5353413 , 30336007 , 91008021
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
-91008020
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 91008021 can be divided by 16 positive divisors.
The sum of these divisors (counting 91008021) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101011011001010110000010101
3
Ternary
20100020200112110
4
Quaternary
11123022300111
5
Quinary
141244224041
6
Senary
13010341233
8
Octal
533126025
10
Decimal
91008021
12
Duodecimal
2658a819
16
Hexadecimal
56cac15
20
Vigesimal
188g011
36
Base36
1i6m8l
md5
2962520de74e54fca618ef41ee96a07d
sha1
b150b6e7838aad9f48677b6e5ec082affe03b5c4
sha256
6c3136b5130e0c057027745c1aafc266245342fbc157927a1f39f521e2310549
sha512
b4cd6a1cdb8b213c2add4e5d5b1db8789fe0a6a3576766d877967691fbe91fbf8715b890cd78eeb8bde759ea89ef7c197a4b8abfad0397f5ab0909e4fa866507
ripemd-160
099f609259d6ea3278238062c231943ec28a480a
Diameter
182016042
Circumference
571820260.38269
Area
2.6020115132567E+16
Volume
3.1573855792094E+24
Surface area
1.0408046053027E+17
Circumference
571820260.38269
Perimeter
364032084
Area
8282459886336441
Diagonal
128704777.58294
Surface area
49694759318018646
Volume
7.5377028326736E+23
Space diagonal
157630516.2683
Perimeter
273024063
Area
3.5864103336965E+15
Altitude
78815258.134148
Surface area
3.5864103336965E+15
Volume
8.8832679792543E+22
Height
42901592.527645