81093909 (number)

81093909 is an odd 8-digits composite number following 81093908 and preceding 81093910. In scientific notation, it is written as 8.1093909 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 49435008 positive integers (up to 81093909) that are relatively prime to 81093909.

Interesting facts

Basic properties

Name

Name eighty-one million ninety-three thousand nine hundred nine

Notation

Scientific notation 8.1093909 × 10^7
Engineering notation 8.1093909 × 10^6

Prime Factorization of 81093909

Prime Factorization 3 × 13 × 107 × 19433

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81093909
Product of the distinct prime numbers

The prime factorization of 81093909 is 3 × 13 × 107 × 19433. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 3, 5, 30, 850, 257, 4660, 289, 17035, 78385, 160126, 817189, 6243496, 305913, 94126160, 68214737, 493113191, 780178736, 2079101954, 3531873444

Basic calculations (n = 81093909)

Multiplication

n×y
n×2 162187818
n×3 243281727
n×4 324375636
n×5 405469545

Division

n÷y
n÷2 40546954.5
n÷3 27031303
n÷3 20273477.25
n÷5 16218781.8

Exponentiation

ny
n2 6576222076900281
n3 5.3329155466794E+23
n4 4.3246696804711E+31
n5 3.5070436952318E+39

Nth Root

y√n
2√n 9005.2156553855
3√n 432.84201665617
4√n 94.895814741144
5√n 38.176635115563

Divisors of 81093909

1, 3, 13, 39, 107, 321, 1391, 4173, 19433, 58299, 252629, 757887, 2079331, 6237993, 27031303, 81093909

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 -81093908
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 81093909 can be divided by 16 positive divisors. The sum of these divisors (counting 81093909) is 1, the average is 0.0625.

Base conversion 81093909

Base System Value
2 Binary 100110101010110010100010101
3 Ternary 12122120222221010
4 Quaternary 10311112110111
5 Quinary 131230001114
6 Senary 12014042433
8 Octal 465262425
10 Decimal 81093909
12 Duodecimal 231a9419
16 Hexadecimal 4d56515
20 Vigesimal 156gef9
36 Base36 1ca4gl

Cryptographic Hash Functions

md5 d53eef367a29bebbfad20829447961fa
sha1 427989d9bbc023ce1be392277d43e203596d4cdc
sha256 4ebaa029bcda55211e03c973e53bdfdb0ae3c059de5803b26a83b6e7e649e099
sha512 d8edcb1e4580ef854d17cee4c9ea2577ce9f604e7376b0cd1bcc678e15a87b9ffb074d3e7d207c822361beb58c8138e6d86c6ac545c7841a7f4a5ee13f60d6aa
ripemd-160 62233a8f70d4b5297a6a0200085604300f6f1a8c

81093909 as geometric shapes

Circle

Radius = n
Diameter 162187818
Circumference 509528057.53056
Area 2.0659810965165E+16

Sphere

Radius = n
Volume 2.2338464404884E+24
Surface area 8.263924386066E+16
Circumference 509528057.53056

Square

Length = n
Perimeter 324375636
Area 6576222076900281
Diagonal 114684105.93365

Cube

Length = n
Surface area 39457332461401686
Volume 5.3329155466794E+23
Space diagonal 140458770.57237

Equilateral Triangle

Length = n
Perimeter 243281727
Area 2.8475876897619E+15
Altitude 70229385.286184

Triangular Pyramid

Length = n
Surface area 2.8475876897619E+15
Volume 6.2849012442536E+22
Height 38228035.311217