81007269 is an odd 8-digits composite number following 81007268
and preceding 81007270 . In scientific notation, it is written as 8.1007269 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 46289856 positive integers (up to 81007269) that are relatively prime to 81007269.
81007269 has 4 divisors, whose sum is 84864780
The reverse of 81007269 is 96270018
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million seven thousand two hundred sixty-nine
Scientific notation
8.1007269 × 10^7
Engineering notation
8.1007269 × 10^6
Prime Factorization
21 × 3857489
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81007269
Product of the distinct prime numbers
The prime factorization of 81007269 is 21 × 3857489.
Since it has a total of 2 prime factors.
1 , 5 , 81 , 56 , 832 , 161 , 7823 , 3454 , 77652 , 46376 , 358148 , 946185 , 5752144 , 1299019 , 73985548 , 76038709 , 417130235 , 203760595 , 9475861431 , 575900723
n×2
162014538
n×3
243021807
n×4
324029076
n×5
405036345
n÷2
40503634.5
n÷3
27002423
n÷3
20251817.25
n÷5
16201453.8
n2
6562177630838361
n3
5.3158408856711E+23
n4
4.3062175258675E+31
n5
3.4883492149047E+39
2 √n
9000.4038242737
3 √n
432.68781355955
4 √n
94.870458121976
5 √n
38.168474112726
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
-81007268
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 81007269 can be divided by 4 positive divisors.
The sum of these divisors (counting 81007269) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101000001001010100101
3
Ternary
12122102121002020
4
Quaternary
10311001022211
5
Quinary
131214213034
6
Senary
12012133353
8
Octal
465011245
10
Decimal
81007269
12
Duodecimal
23167259
16
Hexadecimal
4d412a5
20
Vigesimal
1565i39
36
Base36
1c89lx
md5
f0f4398b48fd48126c268ac91e170bfa
sha1
8cefaded71db3392598f59dd18dc5496ae1b5faf
sha256
cddfc9a2d7fccbd77c58004e33aca5325836d8539993cb3d33d07dea7a01f90d
sha512
1677e5a58ff4bbf1a80f1b8faf8ac42b1b5942602a7814b87b264f2d99c73b7f013baca446eb86ce1595789ea94eb65a303d99b7b405da37b84b12d064703e32
ripemd-160
a71de7d256f2fd6d608d361edc150b59af8ca761
Diameter
162014538
Circumference
508983682.35554
Area
2.0615689036593E+16
Volume
2.2266942232102E+24
Surface area
8.2462756146372E+16
Circumference
508983682.35554
Perimeter
324029076
Area
6562177630838361
Diagonal
114561578.47061
Surface area
39373065785030166
Volume
5.3158408856711E+23
Space diagonal
140308705.6904
Perimeter
243021807
Area
2.841506266226E+15
Altitude
70154352.8452
Surface area
2.841506266226E+15
Volume
6.2647785632778E+22
Height
38187192.823535