81043958 is an even 8-digits composite number following 81043957
and preceding 81043959 . In scientific notation, it is written as 8.1043958 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 40521978 positive integers (up to 81043958) that are relatively prime to 81043958.
81043958 has 4 divisors, whose sum is 121565940
The reverse of 81043958 is 85934018
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million forty-three thousand nine hundred fifty-eight
Scientific notation
8.1043958 × 10^7
Engineering notation
8.1043958 × 10^6
Prime Factorization
2 × 40521979
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81043958
Product of the distinct prime numbers
The prime factorization of 81043958 is 2 × 40521979.
Since it has a total of 2 prime factors.
6 , 2 , 100 , 57 , 4 , 653 , 8731 , 1265 , 98311 , 2980 , 429601 , 187516 , 749560 , 3420678 , 25622231 , 42942054 , 581551328 , 719801896 , 4978467976 , 8372031571
n×2
162087916
n×3
243131874
n×4
324175832
n×5
405219790
n÷2
40521979
n÷3
27014652.666667
n÷3
20260989.5
n÷5
16208791.6
n2
6568123128305764
n3
5.3230669494924E+23
n4
4.3140241428585E+31
n5
3.4962559144481E+39
2 √n
9002.4417798728
3 √n
432.75312657553
4 √n
94.881198242185
5 √n
38.171930863058
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
-81043957
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 81043958 can be divided by 4 positive divisors.
The sum of these divisors (counting 81043958) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101001010000111110110
3
Ternary
12122111110102002
4
Quaternary
10311022013312
5
Quinary
131221401313
6
Senary
12013015302
8
Octal
465120766
10
Decimal
81043958
12
Duodecimal
23184532
16
Hexadecimal
4d4a1f6
20
Vigesimal
156a9hi
36
Base36
1c91x2
md5
62f6b35502d71f6c86f2052534b4de72
sha1
7d704e15bdddf368e6f3a09da52f57db8bb10964
sha256
28ba41b7e505f85b0f2706c40f773e96683180696b737abb234665fd29b73e39
sha512
97d1a1861b609c34bd45a6a51874abe165e28617ddb6f7fb6c5cf00d45ef0b939376453ec1ccd181c04cc20cdb25831bfcc8d6f3e1e7df53a4d4f43b154c21bd
ripemd-160
6e10cffe66e5a7ee8d79bc0e8081f1f4686dff9e
Diameter
162087916
Circumference
509214206.14128
Area
2.0634367367759E+16
Volume
2.2297210697456E+24
Surface area
8.2537469471034E+16
Circumference
509214206.14128
Perimeter
324175832
Area
6568123128305764
Diagonal
114613464.552
Surface area
39408738769834584
Volume
5.3230669494924E+23
Space diagonal
140372252.90248
Perimeter
243131874
Area
2.8440807421485E+15
Altitude
70186126.451239
Surface area
2.8440807421485E+15
Volume
6.2732945611601E+22
Height
38204488.183999