81335331 is an odd 8-digits composite number following 81335330
and preceding 81335332 . In scientific notation, it is written as 8.1335331 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 41990400 positive integers (up to 81335331) that are relatively prime to 81335331.
81335331 has 16 divisors, whose sum is 92114880
The reverse of 81335331 is 13353318
Previous prime number is 241
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighty-one million three hundred thirty-five thousand three hundred thirty-one
Scientific notation
8.1335331 × 10^7
Engineering notation
8.1335331 × 10^6
Prime Factorization
9 × 77 × 241 × 487
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81335331
Product of the distinct prime numbers
The prime factorization of 81335331 is 9 × 77 × 241 × 487.
Since it has a total of 4 prime factors.
8 , 3 , 14 , 92 , 973 , 274 , 2064 , 7816 , 81764 , 73350 , 343233 , 473635 , 5479144 , 5307113 , 88791502 , 20584002 , 991484181 , 727119153 , 6527085706 , 3380495689
n×2
162670662
n×3
244005993
n×4
325341324
n×5
406676655
n÷2
40667665.5
n÷3
27111777
n÷3
20333832.75
n÷5
16267066.2
n2
6615436068879561
n3
5.3806868237166E+23
n4
4.3763994381433E+31
n5
3.559558968896E+39
2 √n
9018.6102587926
3 √n
433.27112433734
4 √n
94.966363828424
5 √n
38.199338975351
1 , 9 , 77 , 241 , 487 , 693 , 2169 , 4383 , 18557 , 37499 , 117367 , 167013 , 337491 , 1056303 , 9037259 , 81335331
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
-81335330
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 81335331 can be divided by 16 positive divisors.
The sum of these divisors (counting 81335331) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110010001010000100011
3
Ternary
12200001021002200
4
Quaternary
10312101100203
5
Quinary
131310212311
6
Senary
12023144243
8
Octal
466212043
10
Decimal
81335331
12
Duodecimal
232a5083
16
Hexadecimal
4d91423
20
Vigesimal
1586i6b
36
Base36
1cfaqr
md5
e2277104b09040803700dd8810bbb407
sha1
a2c06c8cbaf3194ada782eeb7f6d8cfa59b1fdec
sha256
07e7a3a05d0584b5d560d001cea07dc9dd7a0e6d4e5873363a5a6311c0b477ee
sha512
1f495b7ed8ab42be07dad50366c0101d452f2abfb63cb187e236c1997cd077db8fe049894fc845264962c3a6b261f2cd9b0f2c091439f19005ed69dc0479f2cf
ripemd-160
77b9cb809ce656fe07528fd621da6568f617dfff
Diameter
162670662
Circumference
511044956.69379
Area
2.0783005354285E+16
Volume
2.2538568262207E+24
Surface area
8.313202141714E+16
Circumference
511044956.69379
Perimeter
325341324
Area
6615436068879561
Diagonal
115025528.2003
Surface area
39692616413277366
Volume
5.3806868237166E+23
Space diagonal
140876925.74243
Perimeter
244005993
Area
2.8645678463808E+15
Altitude
70438462.871216
Surface area
2.8645678463808E+15
Volume
6.3412002341518E+22
Height
38341842.733435