91991489 is an odd 8-digits prime number following 91991488
and preceding 91991490 . In scientific notation, it is written as 9.1991489 × 10^7.
The sum of its digits is 50. It has a total of 1 prime factors and 2 positive divisors.
There are 91991488 positive integers (up to 91991489) that are relatively prime to 91991489.
91991489 has 2 divisors, whose sum is 91991490
The reverse of 91991489 is 98419919
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 50 Digital Root 5
Name
ninety-one million nine hundred ninety-one thousand four hundred eighty-nine
Scientific notation
9.1991489 × 10^7
Engineering notation
9.1991489 × 10^6
Prime Factorization
91991489
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
91991489 Product of the distinct prime numbers
The prime factorization of 91991489 is 91991489.
Since it has a total of 1 prime factors.
10 , 8 , 68 , 94 , 615 , 672 , 8331 , 5257 , 55715 , 17556 , 18585 , 840209 , 713146 , 6041339 , 4240323 , 22046918 , 80497783 , 39460228 , 9743737279 , 4035143078
n×2
183982978
n×3
275974467
n×4
367965956
n×5
459957445
n÷2
45995744.5
n÷3
30663829.666667
n÷3
22997872.25
n÷5
18398297.8
n2
8462434048437121
n3
7.7847190868003E+23
n4
7.1612790024148E+31
n5
6.5877671857657E+39
2 √n9591.2193698195
3 √n451.4218222137
4 √n97.934770994879
5 √n39.151601327885
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
91991490 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
45995745 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
9591.2194219505 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999782589 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 91991489 can be divided by 2 positive divisors.
The sum of these divisors (counting 91991489) is 91991490, the average is 45995745.
Base
System
Value
2
Binary
101011110111010110111000001
3
Ternary
20102002122121012
4
Quaternary
11132322313001
5
Quinary
142022211424
6
Senary
13043410305
8
Octal
536726701
10
Decimal
91991489
12
Duodecimal
26983995
16
Hexadecimal
57badc1
20
Vigesimal
18eiie9
36
Base36
1irp35
md5
c1cb36c216ce3454e7a7f774c11b03c2
sha1
8902975e71d734657405eba93a60adec6e3d1875
sha256
e762b464938bf967ad78acc93d51a74585b8a3098ede3697ea5d394532a7c251
sha512
453c156917064273f7a97e2bd6f81e24cf77e762a4ba594eddd46659e885403f8bb64a51e04727e955ba9580369c76302cc29b79487ef03c974cdf39d1df4473
ripemd-160
ae74ce8cd1416f669073892675341db18405d906
Diameter
183982978
Circumference
577999572.07037
Area
2.6585520638058E+16
Volume
3.2608555057803E+24
Surface area
1.0634208255223E+17
Circumference
577999572.07037
Perimeter
367965956
Area
8462434048437121
Diagonal
130095611.3667
Surface area
50774604290622726
Volume
7.7847190868003E+23
Space diagonal
159333932.81191
Perimeter
275974467
Area
3.6643414318985E+15
Altitude
79666966.405957
Surface area
3.6643414318985E+15
Volume
9.1743794265147E+22
Height
43365203.788898