81004049 is an odd 8-digits composite number following 81004048
and preceding 81004050 . In scientific notation, it is written as 8.1004049 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 65563344 positive integers (up to 81004049) that are relatively prime to 81004049.
81004049 has 16 divisors, whose sum is 97766400
The reverse of 81004049 is 94040018
Previous prime number is 379
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million four thousand forty-nine
Scientific notation
8.1004049 × 10^7
Engineering notation
8.1004049 × 10^6
Prime Factorization
7 × 19 × 379 × 1607
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81004049
Product of the distinct prime numbers
The prime factorization of 81004049 is 7 × 19 × 379 × 1607.
Since it has a total of 4 prime factors.
2 , 6 , 20 , 11 , 652 , 751 , 9470 , 5445 , 12767 , 68333 , 480585 , 763165 , 9915853 , 1901312 , 58878928 , 96021840 , 545633180 , 766355993 , 7224887763 , 4506808170
n×2
162008098
n×3
243012147
n×4
324016196
n×5
405020245
n÷2
40502024.5
n÷3
27001349.666667
n÷3
20251012.25
n÷5
16200809.8
n2
6561655954394401
n3
5.3152070045091E+23
n4
4.3055328863839E+31
n5
3.4876559689976E+39
2 √n
9000.2249416334
3 √n
432.68208043939
4 √n
94.869515344147
5 √n
38.168170672202
1 , 7 , 19 , 133 , 379 , 1607 , 2653 , 7201 , 11249 , 30533 , 50407 , 213731 , 609053 , 4263371 , 11572007 , 81004049
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
-81004048
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 81004049 can be divided by 16 positive divisors.
The sum of these divisors (counting 81004049) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101000000011000010001
3
Ternary
12122102102122222
4
Quaternary
10311000120101
5
Quinary
131214112144
6
Senary
12012110425
8
Octal
465003021
10
Decimal
81004049
12
Duodecimal
23165415
16
Hexadecimal
4d40611
20
Vigesimal
1565a29
36
Base36
1c874h
md5
b912b51850a4cffa3d79f9973126a1ab
sha1
46c3da383009f63a1f3b72748c29227554c4e378
sha256
5a60a4b0435dbd8edbc0e2a0f225e6fbf7568954d3d8707c1920f4ad78216598
sha512
1a15ffe1b03018d8727377a689e134bb17052924cf4b701cc1a2b37291efbfdf31e2ef2b7a612a22a1362abe32b259183476f155c99b819a5e25c807a3a98e0f
ripemd-160
f5302028cb13851f5a895e315ac575e7023041fc
Diameter
162008098
Circumference
508963450.49886
Area
2.0614050141709E+16
Volume
2.22642870369E+24
Surface area
8.2456200566837E+16
Circumference
508963450.49886
Perimeter
324016196
Area
6561655954394401
Diagonal
114557024.70293
Surface area
39369935726366406
Volume
5.3152070045091E+23
Space diagonal
140303128.4868
Perimeter
243012147
Area
2.8412803736995E+15
Altitude
70151564.243399
Surface area
2.8412803736995E+15
Volume
6.2640315271643E+22
Height
38185674.900978