91072561 is an odd 8-digits composite number following 91072560
and preceding 91072562 . In scientific notation, it is written as 9.1072561 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 91049572 positive integers (up to 91072561) that are relatively prime to 91072561.
91072561 has 4 divisors, whose sum is 91095552
The reverse of 91072561 is 16527019
Previous prime number is 5087
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
ninety-one million seventy-two thousand five hundred sixty-one
Scientific notation
9.1072561 × 10^7
Engineering notation
9.1072561 × 10^6
Prime Factorization
5087 × 17903
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
91072561
Product of the distinct prime numbers
The prime factorization of 91072561 is 5087 × 17903.
Since it has a total of 2 prime factors.
7 , 6 , 72 , 57 , 430 , 436 , 3276 , 748 , 9026 , 13316 , 768431 , 526793 , 706132 , 3789792 , 16575024 , 69242110 , 66266849 , 648271711 , 76305284 , 9438935437
n×2
182145122
n×3
273217683
n×4
364290244
n×5
455362805
n÷2
45536280.5
n÷3
30357520.333333
n÷3
22768140.25
n÷5
18214512.2
n2
8294211367098721
n3
7.5537507067699E+23
n4
6.879394220211E+31
n5
6.2652404976321E+39
2 √n
9543.1944861247
3 √n
449.9136640953
4 √n
97.689275184765
5 √n
39.073067701785
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
-91072560
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 91072561 can be divided by 4 positive divisors.
The sum of these divisors (counting 91072561) is 1, the average is 0.25.
Base
System
Value
2
Binary
101011011011010100000110001
3
Ternary
20100100222001211
4
Quaternary
11123122200301
5
Quinary
141303310221
6
Senary
13012000121
8
Octal
533324061
10
Decimal
91072561
12
Duodecimal
26600041
16
Hexadecimal
56da831
20
Vigesimal
1894181
36
Base36
1i801d
md5
7e762800f907e8c118bb78e5625d0ea3
sha1
f0db0521244c599cac3a95576e03ce954551ecae
sha256
de5db29e9bd191152e06f15299e2d7104bf0b74be1660367e017a04cd022cfd8
sha512
0f0f6f2a7951df7142f27cfe1f649fe90686e82a95bb0515d2f930e4daaf27c3aaff3658c8d4711411fdfd02963faa3e897270ea82e73a698badb9ac42bf5945
ripemd-160
01d4354bd0cc53d9889fa90b87b75ae88ca1ccb2
Diameter
182145122
Circumference
572225777.16242
Area
2.6057033498198E+16
Volume
3.1641076969916E+24
Surface area
1.0422813399279E+17
Circumference
572225777.16242
Perimeter
364290244
Area
8294211367098721
Diagonal
128796050.92625
Surface area
49765268202592326
Volume
7.5537507067699E+23
Space diagonal
157742302.82742
Perimeter
273217683
Area
3.5914988741326E+15
Altitude
78871151.413708
Surface area
3.5914988741326E+15
Volume
8.9021805802495E+22
Height
42932016.975417