85186721 is an odd 8-digits composite number following 85186720
and preceding 85186722 . In scientific notation, it is written as 8.5186721 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 84967344 positive integers (up to 85186721) that are relatively prime to 85186721.
85186721 has 4 divisors, whose sum is 85406100
The reverse of 85186721 is 12768158
Previous prime number is 389
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-five million one hundred eighty-six thousand seven hundred twenty-one
Scientific notation
8.5186721 × 10^7
Engineering notation
8.5186721 × 10^6
Prime Factorization
389 × 218989
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
85186721
Product of the distinct prime numbers
The prime factorization of 85186721 is 389 × 218989.
Since it has a total of 2 prime factors.
8 , 4 , 54 , 9 , 817 , 109 , 6566 , 9118 , 55152 , 16791 , 182221 , 958193 , 2530013 , 1843991 , 90873988 , 97699920 , 868604629 , 617898992 , 2703827993 , 3397906604
n×2
170373442
n×3
255560163
n×4
340746884
n×5
425933605
n÷2
42593360.5
n÷3
28395573.666667
n÷3
21296680.25
n÷5
17037344.2
n2
7256777434731841
n3
6.181810746916E+23
n4
5.2660818737233E+31
n5
4.4860024734003E+39
2 √n
9229.6652702035
3 √n
440.00468486747
4 √n
96.071146918331
5 √n
38.55443830725
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
-85186720
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 85186721 can be divided by 4 positive divisors.
The sum of these divisors (counting 85186721) is 1, the average is 0.25.
Base
System
Value
2
Binary
101000100111101100010100001
3
Ternary
12221021221012202
4
Quaternary
11010331202201
5
Quinary
133301433341
6
Senary
12241502545
8
Octal
504754241
10
Decimal
85186721
12
Duodecimal
24641a55
16
Hexadecimal
513d8a1
20
Vigesimal
16c86g1
36
Base36
1epuht
md5
a4695166fe3ec2850348946b7a20ce06
sha1
34bd2c9ff811113f67288501f7eb4e1d4c379c79
sha256
7fe921d7c7c2689ef042cbf648bfb8e4e4e2f851c227ad6a19408a118de83b7d
sha512
562f3c5731f7869d56bec51f34b15e20018ec15c49a06de92ce6251d5f40e0eedee1668a2b68b03a97e8b0f9bd226b871c7a3fe0f07ae752991557f5a54a7dce
ripemd-160
a215a4c121a7bf2d83cb9a9d747dc72004d75fe1
Diameter
170373442
Circumference
535243953.75401
Area
2.279783867769E+16
Volume
2.5894308304525E+24
Surface area
9.1191354710759E+16
Circumference
535243953.75401
Perimeter
340746884
Area
7256777434731841
Diagonal
120472216.17229
Surface area
43540664608391046
Volume
6.181810746916E+23
Space diagonal
147547728.90219
Perimeter
255560163
Area
3.1422768040437E+15
Altitude
73773864.451097
Surface area
3.1422768040437E+15
Volume
7.2853338319269E+22
Height
40157405.390764