91288891 is an odd 8-digits composite number following 91288890
and preceding 91288892 . In scientific notation, it is written as 9.1288891 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 91213384 positive integers (up to 91288891) that are relatively prime to 91288891.
91288891 has 4 divisors, whose sum is 91364400
The reverse of 91288891 is 19888219
Previous prime number is 1229
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
ninety-one million two hundred eighty-eight thousand eight hundred ninety-one
Scientific notation
9.1288891 × 10^7
Engineering notation
9.1288891 × 10^6
Prime Factorization
1229 × 74279
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
91288891
Product of the distinct prime numbers
The prime factorization of 91288891 is 1229 × 74279.
Since it has a total of 2 prime factors.
1 , 5 , 45 , 9 , 940 , 106 , 1501 , 3002 , 32117 , 45567 , 202409 , 477822 , 6192097 , 3709254 , 96287601 , 40132056 , 927906467 , 82265147 , 9262074906 , 6771591597
n×2
182577782
n×3
273866673
n×4
365155564
n×5
456444455
n÷2
45644445.5
n÷3
30429630.333333
n÷3
22822222.75
n÷5
18257778.2
n2
8333661620009881
n3
7.6077072725997E+23
n4
6.9449915996826E+31
n5
6.3400058113934E+39
2 √n
9554.5220183953
3 √n
450.26961784986
4 √n
97.747235349115
5 √n
39.091612600083
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-91288890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 91288891 can be divided by 4 positive divisors.
The sum of these divisors (counting 91288891) is 1, the average is 0.25.
Base
System
Value
2
Binary
101011100001111010100111011
3
Ternary
20100202221211001
4
Quaternary
11130033110323
5
Quinary
141332221031
6
Senary
13020345431
8
Octal
534172473
10
Decimal
91288891
12
Duodecimal
266a5277
16
Hexadecimal
570f53b
20
Vigesimal
18ab24b
36
Base36
1icmyj
md5
10204eb2aa9f37db4be969680b3e7dbf
sha1
0e045c2393bf35b217c3954b92216393c1a8a9e8
sha256
77d010158306eaefa067eea725bdc95ea70c1183621933b831aaddc7580cf488
sha512
b7d3a715a51b5724abc32c85a223eebf79dbe207555e70aef2b0eb8b15182859ceab644f2d719910d5edc13467b6286f41a54c48506c73c49edccc1552c0ee15
ripemd-160
ae7ad06209f6840642a9ea626825ed8a0d5d6ec8
Diameter
182577782
Circumference
573585018.63992
Area
2.6180970122926E+16
Volume
3.1867089704348E+24
Surface area
1.0472388049171E+17
Circumference
573585018.63992
Perimeter
365155564
Area
8333661620009881
Diagonal
129101987.7462
Surface area
50001969720059286
Volume
7.6077072725997E+23
Space diagonal
158116997.37862
Perimeter
273866673
Area
3.608581334736E+15
Altitude
79058498.689309
Surface area
3.608581334736E+15
Volume
8.9657690028957E+22
Height
43033995.9154