91991189 is an odd 8-digits composite number following 91991188
and preceding 91991190 . In scientific notation, it is written as 9.1991189 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 91712940 positive integers (up to 91991189) that are relatively prime to 91991189.
91991189 has 4 divisors, whose sum is 92269440
The reverse of 91991189 is 98119919
Previous prime number is 331
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
ninety-one million nine hundred ninety-one thousand one hundred eighty-nine
Scientific notation
9.1991189 × 10^7
Engineering notation
9.1991189 × 10^6
Prime Factorization
331 × 277919
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
91991189
Product of the distinct prime numbers
The prime factorization of 91991189 is 331 × 277919.
Since it has a total of 2 prime factors.
8 , 2 , 67 , 26 , 285 , 351 , 6544 , 9621 , 21406 , 76346 , 896307 , 60903 , 7212462 , 6632224 , 70348627 , 78076654 , 555203428 , 494008273 , 9628869417 , 215352514
n×2
183982378
n×3
275973567
n×4
367964756
n×5
459955945
n÷2
45995594.5
n÷3
30663729.666667
n÷3
22997797.25
n÷5
18398237.8
n2
8462378853633721
n3
7.7846429251422E+23
n4
7.1611855862427E+31
n5
6.5876597672813E+39
2 √n
9591.2037305022
3 √n
451.42133149188
4 √n
97.934691149267
5 √n
39.151575791836
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
-91991188
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 91991189 can be divided by 4 positive divisors.
The sum of these divisors (counting 91991189) is 1, the average is 0.25.
Base
System
Value
2
Binary
101011110111010110010010101
3
Ternary
20102002122012002
4
Quaternary
11132322302111
5
Quinary
142022204224
6
Senary
13043405045
8
Octal
536726225
10
Decimal
91991189
12
Duodecimal
26983785
16
Hexadecimal
57bac95
20
Vigesimal
18eihj9
36
Base36
1irout
md5
55fa3f2574d828ece89d0435c2571d83
sha1
8da810bdfca092792594776f640ed015f5f6eda0
sha256
3180246beff5b03bc372c31cac30ce3650e6e4d1d15e28a9b372b2f9427e2a13
sha512
183a96062a72384f2ad11f8800deff7de575cac137f6352623905f2319aeb1662f8585f8452210a809ebd4b653d4b9226f8a640abbf197529aaf38bdeb24fe76
ripemd-160
6c5f4752b2c2f84e62b200e83b7eef16797effa1
Diameter
183982378
Circumference
577997687.11478
Area
2.6585347238469E+16
Volume
3.2608236032595E+24
Surface area
1.0634138895388E+17
Circumference
577997687.11478
Perimeter
367964756
Area
8462378853633721
Diagonal
130095187.10263
Surface area
50774273121802326
Volume
7.7846429251422E+23
Space diagonal
159333413.19667
Perimeter
275973567
Area
3.6643175318475E+15
Altitude
79666706.598336
Surface area
3.6643175318475E+15
Volume
9.1742896691399E+22
Height
43365062.367542