81573315 is an odd 8-digits composite number following 81573314
and preceding 81573316 . In scientific notation, it is written as 8.1573315 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 43465952 positive integers (up to 81573315) that are relatively prime to 81573315.
81573315 has 16 divisors, whose sum is 130636800
The reverse of 81573315 is 51337518
Previous prime number is 1619
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million five hundred seventy-three thousand three hundred fifteen
Scientific notation
8.1573315 × 10^7
Engineering notation
8.1573315 × 10^6
Prime Factorization
3 × 5 × 1619 × 3359
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81573315
Product of the distinct prime numbers
The prime factorization of 81573315 is 3 × 5 × 1619 × 3359.
Since it has a total of 4 prime factors.
10 , 9 , 20 , 41 , 12 , 797 , 539 , 1543 , 14150 , 76641 , 810209 , 406659 , 7410103 , 9992629 , 1690958 , 29012468 , 316405719 , 210377691 , 9364203059 , 9157248198
n×2
163146630
n×3
244719945
n×4
326293260
n×5
407866575
n÷2
40786657.5
n÷3
27191105
n÷3
20393328.75
n÷5
16314663
n2
6654205720089225
n3
5.4280561927964E+23
n4
4.4278453765268E+31
n5
3.6119402567072E+39
2 √n
9031.7946721568
3 √n
433.69329098297
4 √n
95.035754703989
5 √n
38.221666813079
1 , 3 , 5 , 15 , 1619 , 3359 , 4857 , 8095 , 10077 , 16795 , 24285 , 50385 , 5438221 , 16314663 , 27191105 , 81573315
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
-81573314
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 81573315 can be divided by 16 positive divisors.
The sum of these divisors (counting 81573315) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111001011010111000011
3
Ternary
12200111100112220
4
Quaternary
10313023113003
5
Quinary
131340321230
6
Senary
12032222123
8
Octal
467132703
10
Decimal
81573315
12
Duodecimal
2339a943
16
Hexadecimal
4dcb5c3
20
Vigesimal
159gd5f
36
Base36
1ckedf
md5
44eb46816f6c60fedc24b4a3f94cc09c
sha1
6b5ec002f5e48b5f7a794da23c4e4c17dd50c32b
sha256
56f057eb6186071a7b7c6be0e22aa61183ee3680bf0ef850e55673ebd23f400c
sha512
de34c8fd5af33a86ab9c32b5544650a8901d49fbf365bbb531650197f865181c08d8bac96d554125f9baff918853abc38481107ffa2a816fcae7c44b0003607b
ripemd-160
2c55baf03ceb4a2b4bba77464b59763ac7eda7f7
Diameter
163146630
Circumference
512540254.26593
Area
2.0904803805707E+16
Volume
2.2736988611416E+24
Surface area
8.361921522283E+16
Circumference
512540254.26593
Perimeter
326293260
Area
6654205720089225
Diagonal
115362088.40073
Surface area
39925234320535350
Volume
5.4280561927964E+23
Space diagonal
141289126.12182
Perimeter
244719945
Area
2.8813555978025E+15
Altitude
70644563.06091
Surface area
2.8813555978025E+15
Volume
6.3970255709799E+22
Height
38454029.466911