81013569 is an odd 8-digits composite number following 81013568
and preceding 81013570 . In scientific notation, it is written as 8.1013569 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 42732288 positive integers (up to 81013569) that are relatively prime to 81013569.
81013569 has 16 divisors, whose sum is 132945792
The reverse of 81013569 is 96531018
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million thirteen thousand five hundred sixty-nine
Scientific notation
8.1013569 × 10^7
Engineering notation
8.1013569 × 10^6
Prime Factorization
3 × 7 × 13 × 296753
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81013569
Product of the distinct prime numbers
The prime factorization of 81013569 is 3 × 7 × 13 × 296753.
Since it has a total of 4 prime factors.
8 , 8 , 8 , 84 , 598 , 789 , 3327 , 9582 , 18059 , 24753 , 396390 , 971090 , 8998561 , 6905384 , 84225345 , 24702990 , 777404415 , 850103454 , 52946830 , 945533706
n×2
162027138
n×3
243040707
n×4
324054276
n×5
405067845
n÷2
40506784.5
n÷3
27004523
n÷3
20253392.25
n÷5
16202713.8
n2
6563198362117761
n3
5.3170812337011E+23
n4
4.3075572740505E+31
n5
3.4897058844274E+39
2 √n
9000.7538017657
3 √n
432.69903009438
4 √n
94.872302606007
5 √n
38.169067772801
1 , 3 , 7 , 13 , 21 , 39 , 91 , 273 , 296753 , 890259 , 2077271 , 3857789 , 6231813 , 11573367 , 27004523 , 81013569
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81013568
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81013569 can be divided by 16 positive divisors.
The sum of these divisors (counting 81013569) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101000010101101000001
3
Ternary
12122102220201120
4
Quaternary
10311002231001
5
Quinary
131214413234
6
Senary
12012222453
8
Octal
465025501
10
Decimal
81013569
12
Duodecimal
2316aa29
16
Hexadecimal
4d42b41
20
Vigesimal
1566di9
36
Base36
1c8egx
md5
52823cb0443cab03c19632f1f082b60f
sha1
557cff4bfa0030a212a8a3f5d0c27d23382ea39e
sha256
62bf0476ef926c7a21959e2dc97a2416a5796acdf38ba6b5c4cf300998d162e2
sha512
cf12b2270b437df6e007ce4ec70c962cc626be2ea683cf85dac401940c4c74fd9ba4b7c20ce4ce827ffeafdc6b8e5f8caed99f7dd5098525377084f1d104b309
ripemd-160
dba43d033cf040aad7f62b8a1ddb4ed197d2d014
Diameter
162027138
Circumference
509023266.42298
Area
2.0618895758482E+16
Volume
2.2272137789781E+24
Surface area
8.2475583033927E+16
Circumference
509023266.42298
Perimeter
324054276
Area
6563198362117761
Diagonal
114570488.01605
Surface area
39379190172706566
Volume
5.3170812337011E+23
Space diagonal
140319617.61049
Perimeter
243040707
Area
2.8419482558352E+15
Altitude
70159808.805243
Surface area
2.8419482558352E+15
Volume
6.2662403274497E+22
Height
38190162.672016