91991392 is an even 8-digits composite number following 91991391
and preceding 91991393 . In scientific notation, it is written as 9.1991392 × 10^7.
The sum of its digits is 43. It has a total of 7 prime factors and 24 positive divisors.
There are 45412224 positive integers (up to 91991392) that are relatively prime to 91991392.
91991392 has 24 divisors, whose sum is 183405600
The reverse of 91991392 is 29319919
Previous prime number is 79
Is Prime? no Number parity even Number length 8 Sum of Digits 43 Digital Root 7
Name
ninety-one million nine hundred ninety-one thousand three hundred ninety-two
Scientific notation
9.1991392 × 10^7
Engineering notation
9.1991392 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 79 × 36389
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
7 Total number of prime factors
rad Radical
5749462 Product of the distinct prime numbers
The prime factorization of 91991392 is 2 × 2 × 2 × 2 × 2 × 79 × 36389.
Since it has a total of 7 prime factors.
4 , 5 , 17 , 64 , 8 , 998 , 7858 , 631 , 64111 , 21524 , 524020 , 426085 , 3231759 , 9328173 , 51778941 , 92864279 , 222571392 , 113779502 , 5244275329 , 5040090432
n×2
183982784
n×3
275974176
n×4
367965568
n×5
459956960
n÷2
45995696
n÷3
30663797.333333
n÷3
22997848
n÷5
18398278.4
n2
8462416202097664
n3
7.7846944611432E+23
n4
7.1612487977525E+31
n5
6.5877324536358E+39
2 √n9591.2143131097
3 √n451.4216635471
4 √n97.934745178153
5 √n39.151593071236
1 , 2 , 4 , 8 , 16 , 32 , 79 , 158 , 316 , 632 , 1264 , 2528 , 36389 , 72778 , 145556 , 291112 , 582224 , 1164448 , 2874731 , 5749462 , 11498924 , 22997848 , 45995696 , 91991392
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-91991391 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 91991392 can be divided by 24 positive divisors.
The sum of these divisors (counting 91991392) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
101011110111010110101100000
3
Ternary
20102002122110121
4
Quaternary
11132322311200
5
Quinary
142022211032
6
Senary
13043410024
8
Octal
536726540
10
Decimal
91991392
12
Duodecimal
26983914
16
Hexadecimal
57bad60
20
Vigesimal
18eii9c
36
Base36
1irp0g
md5
488f6dad17ec13a642a429d6af406a60
sha1
246846c236e213dea2df13a98a86ab535492d419
sha256
32d51b8695fab97a493e2238cbc237a46ed6b935e02b7a01fe91ddf42d79e879
sha512
46a428e5af8b3b8330d2763534c1297c72c7010ac30d71b31d9a4a9fc1d1caefbbc6259dcca56a8ec5688bc013923ce6ce1bc34583f23a967750e14f6a8d6ab4
ripemd-160
c92a447e41ef0fa34ea61ed697144f145d98a3ed
Diameter
183982784
Circumference
577998962.6014
Area
2.6585464572129E+16
Volume
3.2608451906091E+24
Surface area
1.0634185828852E+17
Circumference
577998962.6014
Perimeter
367965568
Area
8462416202097664
Diagonal
130095474.18798
Surface area
50774497212585984
Volume
7.7846944611432E+23
Space diagonal
159333764.80299
Perimeter
275974176
Area
3.6643337042068E+15
Altitude
79666882.401493
Surface area
3.6643337042068E+15
Volume
9.1743504048995E+22
Height
43365158.06266