68387515 is an odd 8-digits composite number following 68387514
and preceding 68387516 . In scientific notation, it is written as 6.8387515 × 10^7.
The sum of its digits is 43. It has a total of 5 prime factors and 24 positive divisors.
There are 44129280 positive integers (up to 68387515) that are relatively prime to 68387515.
68387515 has 24 divisors, whose sum is 99644832
The reverse of 68387515 is 51578386
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
sixty-eight million three hundred eighty-seven thousand five hundred fifteen
Scientific notation
6.8387515 × 10^7
Engineering notation
6.8387515 × 10^6
Prime Factorization
5 × 7 × 17 × 17 × 6761
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
4022795
Product of the distinct prime numbers
The prime factorization of 68387515 is 5 × 7 × 17 × 17 × 6761.
Since it has a total of 5 prime factors.
5 , 2 , 82 , 57 , 861 , 247 , 3264 , 7395 , 14288 , 62199 , 686322 , 301445 , 5754071 , 7713622 , 74663514 , 72523908 , 220824740 , 35449505 , 1596359046 , 65804235
n×2
136775030
n×3
205162545
n×4
273550060
n×5
341937575
n÷2
34193757.5
n÷3
22795838.333333
n÷3
17096878.75
n÷5
13677503
n2
4676852207875225
n3
3.1983830051885E+23
n4
2.1872946574307E+31
n5
1.4958364619446E+39
2 √n
8269.6744192259
3 √n
408.93938640614
4 √n
90.937750242822
5 √n
36.897366035188
1 , 5 , 7 , 17 , 35 , 85 , 119 , 289 , 595 , 1445 , 2023 , 6761 , 10115 , 33805 , 47327 , 114937 , 236635 , 574685 , 804559 , 1953929 , 4022795 , 9769645 , 13677503 , 68387515
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68387514
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68387515 can be divided by 24 positive divisors.
The sum of these divisors (counting 68387515) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100000100111000001010111011
3
Ternary
11202200110000221
4
Quaternary
10010320022323
5
Quinary
120001400030
6
Senary
10441440511
8
Octal
404701273
10
Decimal
68387515
12
Duodecimal
1aaa0137
16
Hexadecimal
41382bb
20
Vigesimal
11788ff
36
Base36
14ps57
md5
4695bc92665d4a1b4a220169dda1a89f
sha1
898ea38c01bd933f07d39ab6d680b60078b46f94
sha256
27c9209bdbd57e29c82e1ec7d4798f0326da9e6411c28cdbbd704072863b4263
sha512
0c574f9ab2954b292c7378ffb4a1e5a9787d6031309ed3968d81005760d84f55609b1fe45d43e54d8e173bf917f95e766cf9c38f111c275f881c0061fd97b35c
ripemd-160
69e844971cad2974f0de2b2aa1caaabbe9bdd880
Diameter
136775030
Circumference
429691429.44252
Area
1.4692764538186E+16
Volume
1.3397355403289E+24
Surface area
5.8771058152744E+16
Circumference
429691429.44252
Perimeter
273550060
Area
4676852207875225
Diagonal
96714551.209993
Surface area
28061113247251350
Volume
3.1983830051885E+23
Space diagonal
118450650.58338
Perimeter
205162545
Area
2.0251364108826E+15
Altitude
59225325.291689
Surface area
2.0251364108826E+15
Volume
3.7693305196677E+22
Height
32238183.736664