81885089 (number)

81885089 is an odd 8-digits composite number following 81885088 and preceding 81885090. In scientific notation, it is written as 8.1885089 × 10^7. The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors. There are 68428800 positive integers (up to 81885089) that are relatively prime to 81885089.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1885089 × 10^7
Engineering notation 8.1885089 × 10^6

Prime Factorization of 81885089

Prime Factorization 13 × 11 × 271 × 2113

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81885089
Product of the distinct prime numbers

The prime factorization of 81885089 is 13 × 11 × 271 × 2113. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 10, 6, 98, 1, 110, 746, 9039, 10077, 79543, 219199, 731703, 8206824, 3008628, 6559485, 75977950, 645947315, 422604604, 709304039, 6226019851

Basic calculations (n = 81885089)

Multiplication

n×y
n×2 163770178
n×3 245655267
n×4 327540356
n×5 409425445

Division

n÷y
n÷2 40942544.5
n÷3 27295029.666667
n÷3 20471272.25
n÷5 16377017.8

Exponentiation

ny
n2 6705167800537921
n3 5.4905326210698E+23
n4 4.4959275233371E+31
n5 3.68149425386E+39

Nth Root

y√n
2√n 9049.0380151705
3√n 434.24511520597
4√n 95.126431737822
5√n 38.250838964757

Divisors of 81885089

1, 11, 13, 143, 271, 2113, 2981, 3523, 23243, 27469, 38753, 302159, 572623, 6298853, 7444099, 81885089

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 -81885088
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 81885089 can be divided by 16 positive divisors. The sum of these divisors (counting 81885089) is 1, the average is 0.0625.

Base conversion 81885089

Base System Value
2 Binary 100111000010111011110100001
3 Ternary 12201002012020002
4 Quaternary 10320113132201
5 Quinary 131430310324
6 Senary 12043025345
8 Octal 470273641
10 Decimal 81885089
12 Duodecimal 2350b255
16 Hexadecimal 4e177a1
20 Vigesimal 15bfce9
36 Base36 1cr2xt

Cryptographic Hash Functions

md5 9d9d1d844bc88b2384f76bcf7954cc78
sha1 75bc8cd9239b68471e576637ceedb68a578c9be6
sha256 789626cbc65dafffc61f9b609b5a3f7fd941f67ad2482086a1f8e3c8b98effea
sha512 586de58710d6c1828b9fbcfeabeb393b19f12d361071ea13757605a2ab5585646dcadcc71563e6ccb8ab61d63ba985f60eceee8280b40a53b8ea6cf45fb2ef99
ripemd-160 dcf4d1f876725d4558043c577ce828e9f3443739

81885089 as geometric shapes

Circle

Radius = n
Diameter 163770178
Circumference 514499188.08189
Area 2.1064905903257E+16

Sphere

Radius = n
Volume 2.2998689262197E+24
Surface area 8.4259623613027E+16
Circumference 514499188.08189

Square

Length = n
Perimeter 327540356
Area 6705167800537921
Diagonal 115803003.41993

Cube

Length = n
Surface area 40231006803227526
Volume 5.4905326210698E+23
Space diagonal 141829134.5303

Equilateral Triangle

Length = n
Perimeter 245655267
Area 2.9034228259516E+15
Altitude 70914567.26515

Triangular Pyramid

Length = n
Surface area 2.9034228259516E+15
Volume 6.4706547478074E+22
Height 38601001.139976