91991649 is an odd 8-digits composite number following 91991648
and preceding 91991650 . In scientific notation, it is written as 9.1991649 × 10^7.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 61172496 positive integers (up to 91991649) that are relatively prime to 91991649.
91991649 has 8 divisors, whose sum is 122966080
The reverse of 91991649 is 94619919
Previous prime number is 397
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
ninety-one million nine hundred ninety-one thousand six hundred forty-nine
Scientific notation
9.1991649 × 10^7
Engineering notation
9.1991649 × 10^6
Prime Factorization
3 × 397 × 77239
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
91991649
Product of the distinct prime numbers
The prime factorization of 91991649 is 3 × 397 × 77239.
Since it has a total of 3 prime factors.
8 , 1 , 66 , 47 , 5 , 11 , 2396 , 4188 , 28546 , 4909 , 123675 , 740667 , 3440132 , 3207172 , 28890456 , 56249854 , 71109671 , 5665267 , 5252606277 , 6558492512
n×2
183983298
n×3
275974947
n×4
367966596
n×5
459958245
n÷2
45995824.5
n÷3
30663883
n÷3
22997912.25
n÷5
18398329.8
n2
8462463485739201
n3
7.7847597065544E+23
n4
7.1613288247469E+31
n5
6.587824476197E+39
2 √n
9591.2277107782
3 √n
451.42208393157
4 √n
97.934813579126
5 √n
39.151614947084
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
-91991648
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 91991649 can be divided by 8 positive divisors.
The sum of these divisors (counting 91991649) is 1, the average is 0.125.
Base
System
Value
2
Binary
101011110111010111001100001
3
Ternary
20102002122211010
4
Quaternary
11132322321201
5
Quinary
142022213044
6
Senary
13043411133
8
Octal
536727141
10
Decimal
91991649
12
Duodecimal
26983aa9
16
Hexadecimal
57bae61
20
Vigesimal
18eij29
36
Base36
1irp7l
md5
87f97778679ce351bed2cceec90216d4
sha1
c7796f9ec7c19dcd620e4646e43ecbb5f1446d1a
sha256
9f84d6f9f094634e154c6b3dd51b63e6a8b5d3ac007b56bc7ca23ab3c47a1327
sha512
b8c13a8353f9e825afbe183f575a028cef4567d179a2648081178ae164a6152d13925c354b7490b0435b5a3e9aecac0551fd45244090de4e3b6c79824872152e
ripemd-160
5b4013e9594db6ec791c4622b503ef417c836e31
Diameter
183983298
Circumference
578000577.38002
Area
2.658561311807E+16
Volume
3.2608725205431E+24
Surface area
1.0634245247228E+17
Circumference
578000577.38002
Perimeter
367966596
Area
8462463485739201
Diagonal
130095837.64087
Surface area
50774780914435206
Volume
7.7847597065544E+23
Space diagonal
159334209.94004
Perimeter
275974947
Area
3.6643541786242E+15
Altitude
79667104.970021
Surface area
3.6643541786242E+15
Volume
9.174427297354E+22
Height
43365279.213622