81601085 (number)

81601085 is an odd 8-digits composite number following 81601084 and preceding 81601086. In scientific notation, it is written as 8.1601085 × 10^7. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 64970640 positive integers (up to 81601085) that are relatively prime to 81601085.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred one thousand eighty-five

Notation

Scientific notation 8.1601085 × 10^7
Engineering notation 8.1601085 × 10^6

Prime Factorization of 81601085

Prime Factorization 5 × 211 × 77347

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81601085
Product of the distinct prime numbers

The prime factorization of 81601085 is 5 × 211 × 77347. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 6, 55, 13, 172, 646, 7489, 5929, 18507, 15983, 211300, 299883, 6328335, 4719399, 42817713, 31984318, 130065294, 134900166, 7243499974, 3258418820

Basic calculations (n = 81601085)

Multiplication

n×y
n×2 163202170
n×3 244803255
n×4 326404340
n×5 408005425

Division

n÷y
n÷2 40800542.5
n÷3 27200361.666667
n÷3 20400271.25
n÷5 16320217

Exponentiation

ny
n2 6658737073177225
n3 5.4336016990099E+23
n4 4.4338779409705E+31
n5 3.6180925074076E+39

Nth Root

y√n
2√n 9033.3318880688
3√n 433.74249946197
4√n 95.043841926075
5√n 38.224268818849

Divisors of 81601085

1, 5, 211, 1055, 77347, 386735, 16320217, 81601085

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 -81601084
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 81601085 can be divided by 8 positive divisors. The sum of these divisors (counting 81601085) is 1, the average is 0.125.

Base conversion 81601085

Base System Value
2 Binary 100110111010010001000111101
3 Ternary 12200112202122102
4 Quaternary 10313102020331
5 Quinary 131342213320
6 Senary 12032554445
8 Octal 467221075
10 Decimal 81601085
12 Duodecimal 233b2a25
16 Hexadecimal 4dd223d
20 Vigesimal 15a02e5
36 Base36 1ckzst

Cryptographic Hash Functions

md5 2e35bc407b7e0325bdf8842a7341808c
sha1 4fc1a8671771655d40d439098ed26d792e88cde2
sha256 774503b8dd5e1807e27b418051130bfa3241ec15fd66f69264233cb3e175fa57
sha512 a55c22fc6061c04093f5d75303bf2638ded3dcecdcd25f9a694d20b00d0409edd5a1c3f9668babe1403c822fec0301fd0e2ef9ffc100da68578e885f17abc9a2
ripemd-160 e4e562b639988263dcd66181d101519e18e09c0b

81601085 as geometric shapes

Circle

Radius = n
Diameter 163202170
Circumference 512714738.32191
Area 2.091903947128E+16

Sphere

Radius = n
Volume 2.2760217573523E+24
Surface area 8.3676157885118E+16
Circumference 512714738.32191

Square

Length = n
Perimeter 326404340
Area 6658737073177225
Diagonal 115401361.11136

Cube

Length = n
Surface area 39952422439063350
Volume 5.4336016990099E+23
Space diagonal 141337225.17275

Equilateral Triangle

Length = n
Perimeter 244803255
Area 2.8833177312464E+15
Altitude 70668612.586373

Triangular Pyramid

Length = n
Surface area 2.8833177312464E+15
Volume 6.4035610127277E+22
Height 38467120.370453