81003669 is an odd 8-digits composite number following 81003668
and preceding 81003670 . In scientific notation, it is written as 8.1003669 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 50319360 positive integers (up to 81003669) that are relatively prime to 81003669.
81003669 has 16 divisors, whose sum is 115558080
The reverse of 81003669 is 96630018
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million three thousand six hundred sixty-nine
Scientific notation
8.1003669 × 10^7
Engineering notation
8.1003669 × 10^6
Prime Factorization
3 × 61 × 19 × 23297
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81003669
Product of the distinct prime numbers
The prime factorization of 81003669 is 3 × 61 × 19 × 23297.
Since it has a total of 4 prime factors.
2 , 7 , 92 , 40 , 433 , 794 , 6271 , 1622 , 87352 , 6279 , 855920 , 931441 , 7481923 , 6381822 , 32444484 , 2837190 , 833704700 , 555847183 , 6746167789 , 2157749427
n×2
162007338
n×3
243011007
n×4
324014676
n×5
405018345
n÷2
40501834.5
n÷3
27001223
n÷3
20250917.25
n÷5
16200733.8
n2
6561594391461561
n3
5.3151322019821E+23
n4
4.305452095806E+31
n5
3.4875741646402E+39
2 √n
9000.2038310252
3 √n
432.68140384997
4 √n
94.869404082798
5 √n
38.168134861814
1 , 3 , 19 , 57 , 61 , 183 , 1159 , 3477 , 23297 , 69891 , 442643 , 1327929 , 1421117 , 4263351 , 27001223 , 81003669
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
-81003668
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 81003669 can be divided by 16 positive divisors.
The sum of these divisors (counting 81003669) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101000000010010010101
3
Ternary
12122102102010220
4
Quaternary
10311000102111
5
Quinary
131214104134
6
Senary
12012104553
8
Octal
465002225
10
Decimal
81003669
12
Duodecimal
23165159
16
Hexadecimal
4d40495
20
Vigesimal
1565939
36
Base36
1c86tx
md5
2d31f30de15865f6beab9b284ce013bb
sha1
ea6d3668c2768d3899014dcbb7be7383d974015f
sha256
f1ef2dad8ee27a34d62df79821a872bf4991f54dfa214487ee047b3f50cfafc0
sha512
c1c8075cc1451f4293f1f3d49bf5d064e87650ea37a977aa74b837298539cf29dca5994ea792114d29c34722089a21d38544dd73daac02a41b6c41886cbf80a5
ripemd-160
927465864cd9971931adc0968931a9599d2558fc
Diameter
162007338
Circumference
508961062.88844
Area
2.0613856736052E+16
Volume
2.2263973704807E+24
Surface area
8.2455426944207E+16
Circumference
508961062.88844
Perimeter
324014676
Area
6561594391461561
Diagonal
114556487.30178
Surface area
39369566348769366
Volume
5.3151322019821E+23
Space diagonal
140302470.30749
Perimeter
243011007
Area
2.8412537161676E+15
Altitude
70151235.153746
Surface area
2.8412537161676E+15
Volume
6.2639433715409E+22
Height
38185495.76726