81124219 is an odd 8-digits composite number following 81124218
and preceding 81124220 . In scientific notation, it is written as 8.1124219 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 73749280 positive integers (up to 81124219) that are relatively prime to 81124219.
81124219 has 4 divisors, whose sum is 88499160
The reverse of 81124219 is 91242118
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million one hundred twenty-four thousand two hundred nineteen
Scientific notation
8.1124219 × 10^7
Engineering notation
8.1124219 × 10^6
Prime Factorization
11 × 7374929
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81124219
Product of the distinct prime numbers
The prime factorization of 81124219 is 11 × 7374929.
Since it has a total of 2 prime factors.
2 , 9 , 67 , 9 , 432 , 416 , 719 , 7764 , 12965 , 46955 , 791964 , 19492 , 2965220 , 7506688 , 76090975 , 88453489 , 652752477 , 861460250 , 5554942342 , 8006692450
n×2
162248438
n×3
243372657
n×4
324496876
n×5
405621095
n÷2
40562109.5
n÷3
27041406.333333
n÷3
20281054.75
n÷5
16224843.8
n2
6581138908359961
n3
5.3388975407121E+23
n4
4.3311389331129E+31
n5
3.5136026332928E+39
2 √n
9006.8984117731
3 √n
432.89593688889
4 √n
94.904680663143
5 √n
38.179488500892
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
-81124218
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 81124219 can be divided by 4 positive divisors.
The sum of these divisors (counting 81124219) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101011101101101111011
3
Ternary
12122122112111201
4
Quaternary
10311131231323
5
Quinary
131231433334
6
Senary
12014435031
8
Octal
465355573
10
Decimal
81124219
12
Duodecimal
23202a77
16
Hexadecimal
4d5db7b
20
Vigesimal
1570aaj
36
Base36
1caruj
md5
94c8a24f54bc72f91ce0d3b428b50344
sha1
338b96661328c8c83f76dad6e7da3a785789ef5f
sha256
cd22d74d3a7fbb00f67a294427bf5c8fccb6217bdf00e3918c4173ec32be13f9
sha512
52ffa391a736cfdddd02af1ffa8c4d4790f0cf57ace43dddbb3c45c73bf05f433d3c3428fa49cc0f93fd2ba512bde7abd26b686be6521eecd1dc2bf1b3d47fc7
ripemd-160
b9323ea103a8307bf2c6f8505eadae57f4c28735
Diameter
162248438
Circumference
509718500.87722
Area
2.0675257646758E+16
Volume
2.2363521722893E+24
Surface area
8.270103058703E+16
Circumference
509718500.87722
Perimeter
324496876
Area
6581138908359961
Diagonal
114726970.74673
Surface area
39486833450159766
Volume
5.3388975407121E+23
Space diagonal
140511269.03234
Perimeter
243372657
Area
2.849716740237E+15
Altitude
70255634.516172
Surface area
2.849716740237E+15
Volume
6.2919510918296E+22
Height
38242323.582242