81043910 is an even 8-digits composite number following 81043909
and preceding 81043911 . In scientific notation, it is written as 8.1043910 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 32391648 positive integers (up to 81043910) that are relatively prime to 81043910.
81043910 has 16 divisors, whose sum is 145995696
The reverse of 81043910 is 01934018
Previous prime number is 1693
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million forty-three thousand nine hundred ten
Scientific notation
8.1043910 × 10^7
Engineering notation
8.1043910 × 10^6
Prime Factorization
2 × 5 × 1693 × 4787
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81043910
Product of the distinct prime numbers
The prime factorization of 81043910 is 2 × 5 × 1693 × 4787.
Since it has a total of 4 prime factors.
6 , 2 , 12 , 81 , 732 , 359 , 5061 , 3211 , 81994 , 7286 , 697992 , 376085 , 7527428 , 8960799 , 73667920 , 96488048 , 388790761 , 766982943 , 8733554586 , 6547299299
n×2
162087820
n×3
243131730
n×4
324175640
n×5
405219550
n÷2
40521955
n÷3
27014636.666667
n÷3
20260977.5
n÷5
16208782
n2
6568115348088100
n3
5.3230574914007E+23
n4
4.314013922579E+31
n5
3.4962455608024E+39
2 √n
9002.4391139291
3 √n
432.75304113978
4 √n
94.881184193332
5 √n
38.17192634143
1 , 2 , 5 , 10 , 1693 , 3386 , 4787 , 8465 , 9574 , 16930 , 23935 , 47870 , 8104391 , 16208782 , 40521955 , 81043910
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
-81043909
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 81043910 can be divided by 16 positive divisors.
The sum of these divisors (counting 81043910) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101001010000111000110
3
Ternary
12122111110100022
4
Quaternary
10311022013012
5
Quinary
131221401120
6
Senary
12013015142
8
Octal
465120706
10
Decimal
81043910
12
Duodecimal
231844b2
16
Hexadecimal
4d4a1c6
20
Vigesimal
156a9fa
36
Base36
1c91vq
md5
b65d9a5785347fbe03cbd8df77515035
sha1
62786e046b91ae952edac3134b25ac1a598f9404
sha256
35e8da14189cd15d7e08ab5822dc12d294b77399f2569843c5f8ae0cc8e35c03
sha512
9633ee4ef2f169b58f6a394805943543f111adda4ad5e5391dd6fb1f8d20c12f900ce557edd1143e745789deee281e1dc18a83345d31c2dfc429dca68733914d
ripemd-160
a376c80137f5f46e035ff8b6532ba6ca490119eb
Diameter
162087820
Circumference
509213904.54838
Area
2.0634342925484E+16
Volume
2.2297171079494E+24
Surface area
8.2537371701936E+16
Circumference
509213904.54838
Perimeter
324175640
Area
6568115348088100
Diagonal
114613396.66974
Surface area
39408692088528600
Volume
5.3230574914007E+23
Space diagonal
140372169.76404
Perimeter
243131730
Area
2.8440773732154E+15
Altitude
70186084.88202
Surface area
2.8440773732154E+15
Volume
6.2732834146922E+22
Height
38204465.556582