81724922 is an even 8-digits composite number following 81724921
and preceding 81724923 . In scientific notation, it is written as 8.1724922 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 40656924 positive integers (up to 81724922) that are relatively prime to 81724922.
81724922 has 8 divisors, whose sum is 123204000
The reverse of 81724922 is 22942718
Previous prime number is 199
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-one million seven hundred twenty-four thousand nine hundred twenty-two
Scientific notation
8.1724922 × 10^7
Engineering notation
8.1724922 × 10^6
Prime Factorization
2 × 199 × 205339
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81724922
Product of the distinct prime numbers
The prime factorization of 81724922 is 2 × 199 × 205339.
Since it has a total of 3 prime factors.
10 , 5 , 2 , 75 , 194 , 894 , 2638 , 7220 , 26288 , 42018 , 534990 , 590507 , 666636 , 3348669 , 20230819 , 53657398 , 188354666 , 874470646 , 5266969115 , 6008132016
n×2
163449844
n×3
245174766
n×4
326899688
n×5
408624610
n÷2
40862461
n÷3
27241640.666667
n÷3
20431230.5
n÷5
16344984.4
n2
6678962875906084
n3
5.4583772007432E+23
n4
4.4608545097732E+31
n5
3.6456298686456E+39
2 √n
9040.1837370708
3 √n
433.96180300499
4 √n
95.079880821711
5 √n
38.235863537078
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
-81724921
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 81724922 can be divided by 8 positive divisors.
The sum of these divisors (counting 81724922) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111110000010111111010
3
Ternary
12200210001111222
4
Quaternary
10313300113322
5
Quinary
131410144142
6
Senary
12035352042
8
Octal
467602772
10
Decimal
81724922
12
Duodecimal
23452622
16
Hexadecimal
4df05fa
20
Vigesimal
15afc62
36
Base36
1cnncq
md5
bd4825da29d6bf0ae037b4c4c73667e4
sha1
5e6e1e9634451947a62b411d31b3da14efe7e832
sha256
b3cc2996f2b1d34a5caa317cec94ce7b0458636750fb326d04bfe512a4dcd517
sha512
c88db28ada8c830f87153f048f70ac29a5c78ab558994fa4130cf5faed7d7c129ba1ccba9c8ce0daf2f6f257cdfa38429d20f3e69029d55359e493d8ebdc4417
ripemd-160
afffd7b37142016b0ff06f749cf2ab69d8660725
Diameter
163449844
Circumference
513492829.1408
Area
2.0982580704546E+16
Volume
2.2863996952502E+24
Surface area
8.3930322818182E+16
Circumference
513492829.1408
Perimeter
326899688
Area
6678962875906084
Diagonal
115576493.07628
Surface area
40073777255436504
Volume
5.4583772007432E+23
Space diagonal
141551717.1486
Perimeter
245174766
Area
2.8920757607339E+15
Altitude
70775858.574302
Surface area
2.8920757607339E+15
Volume
6.4327592215326E+22
Height
38525497.692094