81609085 (number)

81609085 is an odd 8-digits composite number following 81609084 and preceding 81609086. In scientific notation, it is written as 8.1609085 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors. There are 61516800 positive integers (up to 81609085) that are relatively prime to 81609085.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1609085 × 10^7
Engineering notation 8.1609085 × 10^6

Prime Factorization of 81609085

Prime Factorization 5 × 19 × 193 × 4451

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81609085
Product of the distinct prime numbers

The prime factorization of 81609085 is 5 × 19 × 193 × 4451. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 6, 56, 6, 656, 105, 382, 6948, 55700, 86016, 474694, 853456, 9728783, 9110262, 76764646, 23266773, 876757311, 781638238, 1158062303, 3898616208

Basic calculations (n = 81609085)

Multiplication

n×y
n×2 163218170
n×3 244827255
n×4 326436340
n×5 408045425

Division

n÷y
n÷2 40804542.5
n÷3 27203028.333333
n÷3 20402271.25
n÷5 16321817

Exponentiation

ny
n2 6660042754537225
n3 5.4351999525866E+23
n4 4.4356169492264E+31
n5 3.6198664063686E+39

Nth Root

y√n
2√n 9033.7746817153
3√n 433.7566734018
4√n 95.046171315394
5√n 38.225018274961

Divisors of 81609085

1, 5, 19, 95, 193, 965, 3667, 4451, 18335, 22255, 84569, 422845, 859043, 4295215, 16321817, 81609085

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 -81609084
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 81609085 can be divided by 16 positive divisors. The sum of these divisors (counting 81609085) is 1, the average is 0.0625.

Base conversion 81609085

Base System Value
2 Binary 100110111010100000101111101
3 Ternary 12200120011121201
4 Quaternary 10313110011331
5 Quinary 131342442320
6 Senary 12033055501
8 Octal 467240575
10 Decimal 81609085
12 Duodecimal 233b7591
16 Hexadecimal 4dd417d
20 Vigesimal 15a12e5
36 Base36 1cl5z1

Cryptographic Hash Functions

md5 d3cb75b2e790b9bd73754eef24b278b7
sha1 f9d559b1ee10a03885cabca82bfbfe7bd6f3887b
sha256 7d1f8a83198045263fb31615e16597097b7dd5f5d91f6baa57523714a6f4efc9
sha512 f85c4d55ae2dba6d676545f96a0ae21c833e7c28139f4867971912ad35b66f616855bcbafe3d80701806dda0eae9956efa021171d99196911485ab6bbb0b22a9
ripemd-160 1134c100d1f5fcd2b76e23685c075933789e6d69

81609085 as geometric shapes

Circle

Radius = n
Diameter 163218170
Circumference 512765003.80437
Area 2.0923141390248E+16

Sphere

Radius = n
Volume 2.276691232245E+24
Surface area 8.3692565560992E+16
Circumference 512765003.80437

Square

Length = n
Perimeter 326436340
Area 6660042754537225
Diagonal 115412674.81986

Cube

Length = n
Surface area 39960256527223350
Volume 5.4351999525866E+23
Space diagonal 141351081.57921

Equilateral Triangle

Length = n
Perimeter 244827255
Area 2.8838831078599E+15
Altitude 70675540.789604

Triangular Pyramid

Length = n
Surface area 2.8838831078599E+15
Volume 6.4054445726313E+22
Height 38470891.60662