85655781 is an odd 8-digits composite number following 85655780
and preceding 85655782 . In scientific notation, it is written as 8.5655781 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors.
There are 54098280 positive integers (up to 85655781) that are relatively prime to 85655781.
85655781 has 12 divisors, whose sum is 130237120
The reverse of 85655781 is 18755658
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighty-five million six hundred fifty-five thousand seven hundred eighty-one
Scientific notation
8.5655781 × 10^7
Engineering notation
8.5655781 × 10^6
Prime Factorization
3 × 3 × 19 × 500911
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28551927
Product of the distinct prime numbers
The prime factorization of 85655781 is 3 × 3 × 19 × 500911.
Since it has a total of 4 prime factors.
8 , 10 , 50 , 79 , 690 , 395 , 2026 , 4129 , 73181 , 44138 , 588178 , 683010 , 5633103 , 4418157 , 73933542 , 21184439 , 790726202 , 233005569 , 6140442660 , 4241798399
n×2
171311562
n×3
256967343
n×4
342623124
n×5
428278905
n÷2
42827890.5
n÷3
28551927
n÷3
21413945.25
n÷5
17131156.2
n2
7336912818719961
n3
6.2844899761637E+23
n4
5.3830289709497E+31
n5
4.6108755065233E+39
2 √n
9255.0408426976
3 √n
440.81080010879
4 √n
96.203122832357
5 √n
38.596803231935
1 , 3 , 9 , 19 , 57 , 171 , 500911 , 1502733 , 4508199 , 9517309 , 28551927 , 85655781
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-85655780
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 85655781 can be divided by 12 positive divisors.
The sum of these divisors (counting 85655781) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101000110110000000011100101
3
Ternary
12222011202122100
4
Quaternary
11012300003211
5
Quinary
133411441111
6
Senary
12255522313
8
Octal
506600345
10
Decimal
85655781
12
Duodecimal
24829399
16
Hexadecimal
51b00e5
20
Vigesimal
16f6j91
36
Base36
1ezwf9
md5
222816a74fb8890643bc2680bb3fc5a4
sha1
2b5fd74d0354feb833d0b817529c3dd00af3a92f
sha256
a9e4e4de0c2c61468ec73330f40c02afdb2f09bfd0b7641f3f746ea2c644a6b5
sha512
8f1a7054a08cb8bb7004ca508addd421ae1f8e2959c2f657a12df0317ff9fe722371d047fc8ba5153405e748c094cc4aae1ee1c2ce7c7922fdd1a5cedb08c067
ripemd-160
18566dcfcab168c5612309a829c333abf5d7c3b5
Diameter
171311562
Circumference
538191144.65419
Area
2.3049591411319E+16
Volume
2.6324410054233E+24
Surface area
9.2198365645278E+16
Circumference
538191144.65419
Perimeter
342623124
Area
7336912818719961
Diagonal
121135567.18586
Surface area
44021476912319766
Volume
6.2844899761637E+23
Space diagonal
148360164.65399
Perimeter
256967343
Area
3.1769764431816E+15
Altitude
74180082.326996
Surface area
3.1769764431816E+15
Volume
7.4063424640737E+22
Height
40378522.395287