81430369 is an odd 8-digits composite number following 81430368
and preceding 81430370 . In scientific notation, it is written as 8.1430369 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 80942596 positive integers (up to 81430369) that are relatively prime to 81430369.
81430369 has 4 divisors, whose sum is 81918144
The reverse of 81430369 is 96303418
Previous prime number is 167
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million four hundred thirty thousand three hundred sixty-nine
Scientific notation
8.1430369 × 10^7
Engineering notation
8.1430369 × 10^6
Prime Factorization
167 × 487607
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81430369
Product of the distinct prime numbers
The prime factorization of 81430369 is 167 × 487607.
Since it has a total of 2 prime factors.
5 , 6 , 53 , 48 , 63 , 109 , 550 , 7024 , 1726 , 10991 , 304610 , 975469 , 841590 , 7168137 , 87343414 , 70524207 , 522916665 , 780399894 , 5797267745 , 4044411684
n×2
162860738
n×3
244291107
n×4
325721476
n×5
407151845
n÷2
40715184.5
n÷3
27143456.333333
n÷3
20357592.25
n÷5
16286073.8
n2
6630904995476161
n3
5.3995704058557E+23
n4
4.3968901059031E+31
n5
3.5804038377614E+39
2 √n
9023.8777141537
3 √n
433.43981360959
4 √n
94.994093048745
5 √n
38.208261772171
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
-81430368
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 81430369 can be divided by 4 positive divisors.
The sum of these divisors (counting 81430369) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110101000011101100001
3
Ternary
12200020002110121
4
Quaternary
10312220131201
5
Quinary
131321232434
6
Senary
12025200241
8
Octal
466503541
10
Decimal
81430369
12
Duodecimal
23330081
16
Hexadecimal
4da8761
20
Vigesimal
158ifi9
36
Base36
1chc2p
md5
d07a00cefc83484d2809fc260721bbdc
sha1
bd53a2b702fe1f9017d49ba9399e15881db031a8
sha256
c8baa62ecba7c7b7d4e11eadb2314b0a7bf5a51d1727cdda4be87fca99cac047
sha512
35a52f7d457a06cc206b2c01dbd7e186b98f631e5bc087bfb57d84c1982602e0d186086000a1c0d4c19c69d9f0bcbbfd89373735a4dc69fdad08090b5db47bb4
ripemd-160
010daa06159a8992e0fe030a5439ef62f0fdf2fb
Diameter
162860738
Circumference
511642098.05901
Area
2.083160242044E+16
Volume
2.2617667626103E+24
Surface area
8.3326409681759E+16
Circumference
511642098.05901
Perimeter
325721476
Area
6630904995476161
Diagonal
115159932.22885
Surface area
39785429972856966
Volume
5.3995704058557E+23
Space diagonal
141041536.38708
Perimeter
244291107
Area
2.8712660880817E+15
Altitude
70520768.193541
Surface area
2.8712660880817E+15
Volume
6.3634547491246E+22
Height
38386644.076282