91991380 is an even 8-digits composite number following 91991379
and preceding 91991381 . In scientific notation, it is written as 9.1991380 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 12 positive divisors.
There are 33965952 positive integers (up to 91991380) that are relatively prime to 91991380.
91991380 has 12 divisors, whose sum is 163462068
The reverse of 91991380 is 08319919
Previous prime number is 65
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
ninety-one million nine hundred ninety-one thousand three hundred eighty
Scientific notation
9.1991380 × 10^7
Engineering notation
9.1991380 × 10^6
Prime Factorization
2 × 2 × 65 × 353813
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
45995690
Product of the distinct prime numbers
The prime factorization of 91991380 is 2 × 2 × 65 × 353813.
Since it has a total of 4 prime factors.
10 , 3 , 19 , 22 , 559 , 774 , 4910 , 9400 , 54509 , 50681 , 467051 , 902345 , 8314880 , 2798035 , 92443817 , 24522194 , 947006675 , 741426742 , 452485409 , 8570194320
n×2
183982760
n×3
275974140
n×4
367965520
n×5
459956900
n÷2
45995690
n÷3
30663793.333333
n÷3
22997845
n÷5
18398276
n2
8462413994304400
n3
7.7846914146737E+23
n4
7.1612450610999E+31
n5
6.5877281568876E+39
2 √n
9591.2136875372
3 √n
451.42164391823
4 √n
97.934741984329
5 √n
39.151592049795
1 , 2 , 4 , 65 , 130 , 260 , 353813 , 707626 , 1415252 , 22997845 , 45995690 , 91991380
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
-91991379
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 91991380 can be divided by 12 positive divisors.
The sum of these divisors (counting 91991380) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101011110111010110101010100
3
Ternary
20102002122110011
4
Quaternary
11132322311110
5
Quinary
142022211010
6
Senary
13043410004
8
Octal
536726524
10
Decimal
91991380
12
Duodecimal
26983904
16
Hexadecimal
57bad54
20
Vigesimal
18eii90
36
Base36
1irp04
md5
d89b42eae2328230e44bf8d7bbfa8481
sha1
89cf5b98259d87913ddb0aa040b1ea8a0d8e8cdc
sha256
47ad6b937a454a582a50d311aba347ebe5a3561fe3854cfe12b2fd7d7d0e4abf
sha512
797ee4419e991d40914318401f7d9e0486dacb4ef919b242c367e8a53dd9bd1c1c1cf0ffe9b66d56479e24acea8b59cbdfb6f3a300ccc41b28ea3c9461c74c74
ripemd-160
36b54679d200f2ce93964ef46d9b008a6862c97b
Diameter
183982760
Circumference
577998887.20317
Area
2.6585457636142E+16
Volume
3.260843914507E+24
Surface area
1.0634183054457E+17
Circumference
577998887.20317
Perimeter
367965520
Area
8462413994304400
Diagonal
130095457.21742
Surface area
50774483965826400
Volume
7.7846914146737E+23
Space diagonal
159333744.01838
Perimeter
275974140
Area
3.6643327482043E+15
Altitude
79666872.009188
Surface area
3.6643327482043E+15
Volume
9.1743468146008E+22
Height
43365152.405806