81093025 is an odd 8-digits composite number following 81093024
and preceding 81093026 . In scientific notation, it is written as 8.1093025 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 59883840 positive integers (up to 81093025) that are relatively prime to 81093025.
81093025 has 8 divisors, whose sum is 90824552
The reverse of 81093025 is 52039018
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million ninety-three thousand twenty-five
Scientific notation
8.1093025 × 10^7
Engineering notation
8.1093025 × 10^6
Prime Factorization
25 × 13 × 249517
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81093025
Product of the distinct prime numbers
The prime factorization of 81093025 is 25 × 13 × 249517.
Since it has a total of 3 prime factors.
1 , 2 , 49 , 15 , 769 , 694 , 178 , 2585 , 94836 , 72199 , 904112 , 344019 , 4605058 , 612150 , 62759445 , 1109315 , 395114864 , 916623125 , 3972621311 , 7378822342
n×2
162186050
n×3
243279075
n×4
324372100
n×5
405465125
n÷2
40546512.5
n÷3
27031008.333333
n÷3
20273256.25
n÷5
16218605
n2
6576078703650625
n3
5.3327411471711E+23
n4
4.3244811116607E+31
n5
3.5068525489993E+39
2 √n
9005.1665725849
3 √n
432.84044385521
4 √n
94.895556126643
5 √n
38.176551882943
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81093024
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81093025 can be divided by 8 positive divisors.
The sum of these divisors (counting 81093025) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101010110000110100001
3
Ternary
12122120221201101
4
Quaternary
10311112012201
5
Quinary
131224434100
6
Senary
12014034401
8
Octal
465260641
10
Decimal
81093025
12
Duodecimal
231a8a01
16
Hexadecimal
4d561a1
20
Vigesimal
156gcb5
36
Base36
1ca3s1
md5
a92fc18f226cd7002db74091a995051c
sha1
c7d3b627973dfa2c19e89d36b404f6ea8e1ea4cb
sha256
ff68a3172e70dfe3184e02ca3b09089df4d2412a950aae036a000d1ec1d1a0a4
sha512
a0de7474d72f4fc65e34decc8410c565e1ac40c9ac8c53adc42919c6e16297bb00470fd6ac2d33e359ed1a7a81ceda86810af1c3fdb3fee25063d94b740556bf
ripemd-160
ed0f752da9aa55390bbeac620cf7959eaa1f165f
Diameter
162186050
Circumference
509522503.19475
Area
2.0659360544817E+16
Volume
2.2337733881932E+24
Surface area
8.2637442179268E+16
Circumference
509522503.19475
Perimeter
324372100
Area
6576078703650625
Diagonal
114682855.76886
Surface area
39456472221903750
Volume
5.3327411471711E+23
Space diagonal
140457239.43945
Perimeter
243279075
Area
2.8475256073236E+15
Altitude
70228619.719727
Surface area
2.8475256073236E+15
Volume
6.284695712462E+22
Height
38227618.58962