91991473 is an odd 8-digits composite number following 91991472
and preceding 91991474 . In scientific notation, it is written as 9.1991473 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors.
There are 77896392 positive integers (up to 91991473) that are relatively prime to 91991473.
91991473 has 12 divisors, whose sum is 108304560
The reverse of 91991473 is 37419919
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
ninety-one million nine hundred ninety-one thousand four hundred seventy-three
Scientific notation
9.1991473 × 10^7
Engineering notation
9.1991473 × 10^6
Prime Factorization
7 × 7 × 83 × 22619
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
13141639
Product of the distinct prime numbers
The prime factorization of 91991473 is 7 × 7 × 83 × 22619.
Since it has a total of 4 prime factors.
6 , 1 , 33 , 99 , 974 , 249 , 8104 , 7653 , 29201 , 73024 , 302653 , 825999 , 1933312 , 6752295 , 11606108 , 57342455 , 90994756 , 531255266 , 1309877263 , 7907589272
n×2
183982946
n×3
275974419
n×4
367965892
n×5
459957365
n÷2
45995736.5
n÷3
30663824.333333
n÷3
22997868.25
n÷5
18398294.6
n2
8462431104709729
n3
7.7847150248327E+23
n4
7.1612740201959E+31
n5
6.5877614567445E+39
2 √n
9591.2185357232
3 √n
451.4217960419
4 √n
97.934766736452
5 √n
39.151599965964
1 , 7 , 49 , 83 , 581 , 4067 , 22619 , 158333 , 1108331 , 1877377 , 13141639 , 91991473
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-91991472
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 91991473 can be divided by 12 positive divisors.
The sum of these divisors (counting 91991473) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101011110111010110110110001
3
Ternary
20102002122120121
4
Quaternary
11132322312301
5
Quinary
142022211343
6
Senary
13043410241
8
Octal
536726661
10
Decimal
91991473
12
Duodecimal
26983981
16
Hexadecimal
57badb1
20
Vigesimal
18eiidd
36
Base36
1irp2p
md5
919e8d03ad119f35df1ec023396739f0
sha1
bcf25139a51b8e60e40e79ae030a7a4e8a04af04
sha256
f45061ba94b7b9a6e542c578589c5c8c15d81c7541eca789c8f5e34aef81bb20
sha512
572d0bad806c94602cb7db04edcf58889de079bf55e7000fef4570b956a0efc70ffe15e6ce2292b78212783bed79cb275ef880d3b590bd4126f07b0466dcb225
ripemd-160
f1ab5468ee561db6361dcf81881afcb0d897df0b
Diameter
183982946
Circumference
577999471.53941
Area
2.6585511390066E+16
Volume
3.2608538043072E+24
Surface area
1.0634204556026E+17
Circumference
577999471.53941
Perimeter
367965892
Area
8462431104709729
Diagonal
130095588.73928
Surface area
50774586628258374
Volume
7.7847150248327E+23
Space diagonal
159333905.0991
Perimeter
275974419
Area
3.6643401572271E+15
Altitude
79666952.54955
Surface area
3.6643401572271E+15
Volume
9.17437463944E+22
Height
43365196.246426