81124718 is an even 8-digits composite number following 81124717
and preceding 81124719 . In scientific notation, it is written as 8.1124718 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 38427480 positive integers (up to 81124718) that are relatively prime to 81124718.
81124718 has 8 divisors, whose sum is 128091720
The reverse of 81124718 is 81742118
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million one hundred twenty-four thousand seven hundred eighteen
Scientific notation
8.1124718 × 10^7
Engineering notation
8.1124718 × 10^6
Prime Factorization
2 × 19 × 2134861
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81124718
Product of the distinct prime numbers
The prime factorization of 81124718 is 2 × 19 × 2134861.
Since it has a total of 3 prime factors.
6 , 10 , 30 , 44 , 396 , 611 , 2515 , 5594 , 31881 , 29409 , 868290 , 648749 , 5041364 , 3151000 , 42275443 , 87967604 , 321376720 , 429074159 , 9067014433 , 8009686717
n×2
162249436
n×3
243374154
n×4
324498872
n×5
405623590
n÷2
40562359
n÷3
27041572.666667
n÷3
20281179.5
n÷5
16224943.6
n2
6581219870579524
n3
5.3389960609676E+23
n4
4.3312454984911E+31
n5
3.5137106965386E+39
2 √n
9006.9261127201
3 √n
432.89682447681
4 √n
94.90482660392
5 √n
38.179535469648
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
-81124717
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 81124718 can be divided by 8 positive divisors.
The sum of these divisors (counting 81124718) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011101110101101110
3
Ternary
12122122120012012
4
Quaternary
10311131311232
5
Quinary
131231442333
6
Senary
12014441222
8
Octal
465356556
10
Decimal
81124718
12
Duodecimal
23203212
16
Hexadecimal
4d5dd6e
20
Vigesimal
1570bfi
36
Base36
1cas8e
md5
1b4f95c50f75622b828606fcac7c2090
sha1
58716822d4ededcac5c0d0f1beb52e4153c18d93
sha256
42c8bcb0cd081eb7c0ed2d306b252887ad20ddb76a08cdd2344c060459e49c73
sha512
8de3760c14e76754acee91946758ac995fe412755be2925c389298dbf3233e7644e3abf593180c86e347af952cadd7e8a504ffe8cabef7b3d085f623074accee
ripemd-160
bac45e106bd4e7fa500a277995a5f5f30f6f6b03
Diameter
162249436
Circumference
509721636.18669
Area
2.0675511997072E+16
Volume
2.2363934403574E+24
Surface area
8.2702047988287E+16
Circumference
509721636.18669
Perimeter
324498872
Area
6581219870579524
Diagonal
114727676.43929
Surface area
39487319223477144
Volume
5.3389960609676E+23
Space diagonal
140512133.3257
Perimeter
243374154
Area
2.8497517979064E+15
Altitude
70256066.662849
Surface area
2.8497517979064E+15
Volume
6.2920671990641E+22
Height
38242558.813098