91991143 is an odd 8-digits composite number following 91991142
and preceding 91991144 . In scientific notation, it is written as 9.1991143 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 91477048 positive integers (up to 91991143) that are relatively prime to 91991143.
91991143 has 4 divisors, whose sum is 92505240
The reverse of 91991143 is 34119919
Previous prime number is 179
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
ninety-one million nine hundred ninety-one thousand one hundred forty-three
Scientific notation
9.1991143 × 10^7
Engineering notation
9.1991143 × 10^6
Prime Factorization
179 × 513917
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
91991143
Product of the distinct prime numbers
The prime factorization of 91991143 is 179 × 513917.
Since it has a total of 2 prime factors.
5 , 8 , 24 , 77 , 193 , 739 , 9151 , 8661 , 47138 , 17091 , 965582 , 57096 , 5974128 , 4785974 , 72072691 , 67410127 , 561873745 , 796207125 , 7781797822 , 9228499048
n×2
183982286
n×3
275973429
n×4
367964572
n×5
459955715
n÷2
45995571.5
n÷3
30663714.333333
n÷3
22997785.75
n÷5
18398228.6
n2
8462370390446449
n3
7.7846312470653E+23
n4
7.1611712625105E+31
n5
6.5876432965709E+39
2 √n
9591.2013324713
3 √n
451.42125624777
4 √n
97.934678906255
5 √n
39.151571876303
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-91991142
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 91991143 can be divided by 4 positive divisors.
The sum of these divisors (counting 91991143) is 1, the average is 0.25.
Base
System
Value
2
Binary
101011110111010110001100111
3
Ternary
20102002122010101
4
Quaternary
11132322301213
5
Quinary
142022204033
6
Senary
13043404531
8
Octal
536726147
10
Decimal
91991143
12
Duodecimal
26983747
16
Hexadecimal
57bac67
20
Vigesimal
18eihh3
36
Base36
1irotj
md5
14dd18a4b23bf299167258e9b141be07
sha1
2e00b3749b933266dd81920258b23b0373085e77
sha256
a4979b360bfe47dd4edcff920fb00ac7deeabe3a81118def9decc0b7eea43ca4
sha512
af0e26c96d6db0d7b10cf99af9843abfafc42aabef67cbd34323a0120dc8b9920702b23e04bf1fde9c10fe5eae60a9cd9d32a119edb92356164d68aa9841a1ae
ripemd-160
0316942a23ba01988f12f3f4aaa4b289c119c812
Diameter
183982286
Circumference
577997398.08826
Area
2.6585320650582E+16
Volume
3.2608187115581E+24
Surface area
1.0634128260233E+17
Circumference
577997398.08826
Perimeter
367964572
Area
8462370390446449
Diagonal
130095122.0488
Surface area
50774222342678694
Volume
7.7846312470653E+23
Space diagonal
159333333.52233
Perimeter
275973429
Area
3.6643138671799E+15
Altitude
79666666.761167
Surface area
3.6643138671799E+15
Volume
9.1742759063942E+22
Height
43365040.682934