81041409 is an odd 8-digits composite number following 81041408
and preceding 81041410 . In scientific notation, it is written as 8.1041409 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 52284600 positive integers (up to 81041409) that are relatively prime to 81041409.
81041409 has 8 divisors, whose sum is 92951040
The reverse of 81041409 is 90414018
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighty-one million forty-one thousand four hundred nine
Scientific notation
8.1041409 × 10^7
Engineering notation
8.1041409 × 10^6
Prime Factorization
9 × 31 × 290471
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81041409
Product of the distinct prime numbers
The prime factorization of 81041409 is 9 × 31 × 290471.
Since it has a total of 3 prime factors.
1 , 6 , 3 , 17 , 870 , 496 , 6171 , 5790 , 50383 , 97428 , 101114 , 436697 , 8832677 , 8724633 , 49296981 , 33595466 , 94015187 , 534278976 , 146455843 , 6865024995
n×2
162082818
n×3
243124227
n×4
324165636
n×5
405207045
n÷2
40520704.5
n÷3
27013803
n÷3
20260352.25
n÷5
16208281.8
n2
6567709972705281
n3
5.3225647009139E+23
n4
4.3134814285572E+31
n5
3.4957061266561E+39
2 √n
9002.3002060584
3 √n
432.74858953451
4 √n
94.880452180934
5 √n
38.171690742812
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
-81041408
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 81041409 can be divided by 8 positive divisors.
The sum of these divisors (counting 81041409) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101001001100000000001
3
Ternary
12122111022220200
4
Quaternary
10311021200001
5
Quinary
131221311114
6
Senary
12012555413
8
Octal
465114001
10
Decimal
81041409
12
Duodecimal
23182b69
16
Hexadecimal
4d49801
20
Vigesimal
156a3a9
36
Base36
1c8zy9
md5
bc7c84a5d7eed1f30ec055b7696fb5c3
sha1
932c8253e926d98b2eb83d4f14a478715b8923c8
sha256
50b0a24490a220422edee42ac5eb5d7c8963173f33572733bca805094348a46a
sha512
425aae13f14cecb01787f874cab273c790c2759c922339a802d329c7d42a6a228d387db920f96e8c616652e7a6a9eb6b27fc064f081d18589d9e559e089adef6
ripemd-160
16249c813097a2fd84e3fbfcdc7bde265789a481
Diameter
162082818
Circumference
509198190.30193
Area
2.0633069401159E+16
Volume
2.229510688353E+24
Surface area
8.2532277604637E+16
Circumference
509198190.30193
Perimeter
324165636
Area
6567709972705281
Diagonal
114609859.72163
Surface area
39406259836231686
Volume
5.3225647009139E+23
Space diagonal
140367837.90497
Perimeter
243124227
Area
2.8439018405256E+15
Altitude
70183918.952485
Surface area
2.8439018405256E+15
Volume
6.2727026555339E+22
Height
38203286.573875