81330398 is an even 8-digits composite number following 81330397
and preceding 81330399 . In scientific notation, it is written as 8.1330398 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 39799936 positive integers (up to 81330398) that are relatively prime to 81330398.
81330398 has 8 divisors, whose sum is 124591392
The reverse of 81330398 is 89303318
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-one million three hundred thirty thousand three hundred ninety-eight
Scientific notation
8.1330398 × 10^7
Engineering notation
8.1330398 × 10^6
Prime Factorization
2 × 47 × 865217
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330398
Product of the distinct prime numbers
The prime factorization of 81330398 is 2 × 47 × 865217.
Since it has a total of 3 prime factors.
3 , 4 , 47 , 45 , 189 , 602 , 2835 , 755 , 62449 , 37738 , 639140 , 390279 , 8024217 , 7974682 , 37303551 , 16645739 , 107067140 , 509801483 , 9559816486 , 9084867365
n×2
162660796
n×3
243991194
n×4
325321592
n×5
406651990
n÷2
40665199
n÷3
27110132.666667
n÷3
20332599.5
n÷5
16266079.6
n2
6614633638838404
n3
5.3797078647092E+23
n4
4.3753378176053E+31
n5
3.5584796609029E+39
2 √n
9018.3367646146
3 √n
433.26236484073
4 √n
94.964923864628
5 √n
38.198875604984
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
-81330397
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 81330398 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330398) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010000000011011110
3
Ternary
12200001000022222
4
Quaternary
10312100003132
5
Quinary
131310033043
6
Senary
12023105342
8
Octal
466200336
10
Decimal
81330398
12
Duodecimal
232a2252
16
Hexadecimal
4d900de
20
Vigesimal
15865ji
36
Base36
1cf6xq
md5
5d0117217847e6e4212cb9e76d8a73cd
sha1
1a7024984bea64e6472037eabdba0af950c097d5
sha256
19a2bd2de5b2a1b1a96fc140d9de2f9879b69bb8e9cb2f0cfb3c34b605ca2600
sha512
66199f05d7a3a90ea18806ea427b346cea920ec3d27917d0a797527cf25654c8c72ec44e6a68a00697360e362bad78c2b4ff75ae5637bed7b1ee67465d8f84b3
ripemd-160
4d6015ca2ca339d801dd097954d1bd41911710be
Diameter
162660796
Circumference
511013961.74067
Area
2.0780484445963E+16
Volume
2.2534467608306E+24
Surface area
8.3121937783851E+16
Circumference
511013961.74067
Perimeter
325321592
Area
6614633638838404
Diagonal
115018551.8848
Surface area
39687801833030424
Volume
5.3797078647092E+23
Space diagonal
140868381.5358
Perimeter
243991194
Area
2.8642203839806E+15
Altitude
70434190.767899
Surface area
2.8642203839806E+15
Volume
6.3400465198974E+22
Height
38339517.294934