81072533 is an odd 8-digits composite number following 81072532
and preceding 81072534 . In scientific notation, it is written as 8.1072533 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 78457260 positive integers (up to 81072533) that are relatively prime to 81072533.
81072533 has 4 divisors, whose sum is 83687808
The reverse of 81072533 is 33527018
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million seventy-two thousand five hundred thirty-three
Scientific notation
8.1072533 × 10^7
Engineering notation
8.1072533 × 10^6
Prime Factorization
31 × 2615243
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81072533
Product of the distinct prime numbers
The prime factorization of 81072533 is 31 × 2615243.
Since it has a total of 2 prime factors.
9 , 9 , 50 , 99 , 909 , 681 , 7266 , 2048 , 83466 , 66338 , 603753 , 261420 , 6074554 , 6445644 , 54506193 , 69413953 , 950551862 , 873354585 , 6148659706 , 7796111974
n×2
162145066
n×3
243217599
n×4
324290132
n×5
405362665
n÷2
40536266.5
n÷3
27024177.666667
n÷3
20268133.25
n÷5
16214506.6
n2
6572755607036089
n3
5.3286994585237E+23
n4
4.3201116269824E+31
n5
3.5024239244222E+39
2 √n
9004.0287094167
3 √n
432.80398155938
4 √n
94.889560592389
5 √n
38.174622264487
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
-81072532
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 81072533 can be divided by 4 positive divisors.
The sum of these divisors (counting 81072533) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101010001000110010101
3
Ternary
12122112220121102
4
Quaternary
10311101012111
5
Quinary
131223310113
6
Senary
12013355445
8
Octal
465210625
10
Decimal
81072533
12
Duodecimal
23198b85
16
Hexadecimal
4d51195
20
Vigesimal
156e16d
36
Base36
1c9nyt
md5
b90d85986a72d20465baababeb512c83
sha1
36009b87e0be385b848a20b56d979bd6eed87b3d
sha256
8b6f7f698a82e74d4bc6d31491a274173d9adc9396a5a127fba284c4694eca30
sha512
bc7b930ed725ab8e52ad76a18d123e114ab28d4ba4829e26510f7b23a0417f4be2282c019c753843c3b151c9ec0353bfd4be69468418ddcf6b744bddb5e4907e
ripemd-160
d816341a23f003f2ee249c40a0bf34b16d51248a
Diameter
162145066
Circumference
509393748.16143
Area
2.0648920728906E+16
Volume
2.2320804096115E+24
Surface area
8.2595682915623E+16
Circumference
509393748.16143
Perimeter
324290132
Area
6572755607036089
Diagonal
114653875.70454
Surface area
39436533642216534
Volume
5.3286994585237E+23
Space diagonal
140421746.2543
Perimeter
243217599
Area
2.8460866642799E+15
Altitude
70210873.127152
Surface area
2.8460866642799E+15
Volume
6.279932536712E+22
Height
38217958.56818