81199946 is an even 8-digits composite number following 81199945
and preceding 81199947 . In scientific notation, it is written as 8.1199946 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 40220428 positive integers (up to 81199946) that are relatively prime to 81199946.
81199946 has 8 divisors, whose sum is 122938560
The reverse of 81199946 is 64999118
Previous prime number is 107
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighty-one million one hundred ninety-nine thousand nine hundred forty-six
Scientific notation
8.1199946 × 10^7
Engineering notation
8.1199946 × 10^6
Prime Factorization
2 × 107 × 379439
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81199946
Product of the distinct prime numbers
The prime factorization of 81199946 is 2 × 107 × 379439.
Since it has a total of 3 prime factors.
8 , 5 , 98 , 45 , 4 , 909 , 6492 , 2711 , 21952 , 72010 , 934140 , 877176 , 6305212 , 8488892 , 47540376 , 68533601 , 760348777 , 198045128 , 1952428655 , 9818782924
n×2
162399892
n×3
243599838
n×4
324799784
n×5
405999730
n÷2
40599973
n÷3
27066648.666667
n÷3
20299986.5
n÷5
16239989.2
n2
6593431230402916
n3
5.3538625986343E+23
n4
4.3473335390053E+31
n5
3.5300324861122E+39
2 √n
9011.1012645514
3 √n
433.0305934111
4 √n
94.926820575385
5 √n
38.186613720019
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
-81199945
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 81199946 can be divided by 8 positive divisors.
The sum of these divisors (counting 81199946) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101110000001101001010
3
Ternary
12122210101101102
4
Quaternary
10311300031022
5
Quinary
131241344241
6
Senary
12020221402
8
Octal
465601512
10
Decimal
81199946
12
Duodecimal
2323a862
16
Hexadecimal
4d7034a
20
Vigesimal
1579jh6
36
Base36
1ccea2
md5
a6d64604991ce0949502e91759f79e64
sha1
ae55f128ff15feca07a98a30a47c45388c2a8d7a
sha256
efdf1727f71e3696486c0493325cb325ab555813997ce48c31e58c05d4500d66
sha512
cea42cd044f7811bd31bafa74e410e679cd5abdd3438ff4d0f397e1b2b397bbb5ea6ea515295548f632e2bf094a72d2736a5511df563ac182b4cc1f0bc82e7b8
ripemd-160
fdacdf8a589125caca4b1f941e12229d2364c03e
Diameter
162399892
Circumference
510194307.65098
Area
2.0713875115383E+16
Volume
2.2426207210932E+24
Surface area
8.2855500461533E+16
Circumference
510194307.65098
Perimeter
324799784
Area
6593431230402916
Diagonal
114834064.89716
Surface area
39560587382417496
Volume
5.3538625986343E+23
Space diagonal
140642432.04385
Perimeter
243599838
Area
2.8550394718173E+15
Altitude
70321216.021925
Surface area
2.8550394718173E+15
Volume
6.3095875817256E+22
Height
38278021.632388