Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

81444809 (number)

81444809 is an odd 8-digits prime number following 81444808 and preceding 81444810. In scientific notation, it is written as 8.1444809 × 10^7. The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors. There are 81444808 positive integers (up to 81444809) that are relatively prime to 81444809.

Interesting facts

81444809 has 2 divisors, whose sum is 81444810
The reverse of 81444809 is 90844418
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2

Name

Name	eighty-one million four hundred forty-four thousand eight hundred nine

Notation

Scientific notation	8.1444809 × 10^7
Engineering notation	8.1444809 × 10^6

Prime Factorization of 81444809

Prime Factorization 81444809

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	81444809	Product of the distinct prime numbers

The prime factorization of 81444809 is 81444809. Since it has a total of 1 prime factors.

Most popular turbo-numbers

1, 2, 92, 51, 414, 191, 9820, 6924, 96617, 45742, 982928, 299462, 4663790, 3649072, 46973632, 8627453, 61968977, 360630908, 4858974312, 3132603488

Basic calculations (n = 81444809)

Multiplication

n×y

n×2	162889618
n×3	244334427
n×4	325779236
n×5	407224045

Division

n÷y

n÷2	40722404.5
n÷3	27148269.666667
n÷3	20361202.25
n÷5	16288961.8

Exponentiation

n^y

n²	6633256913046481
n³	5.40244342331E+23
n⁴	4.4000097274479E+31
n⁵	3.5835795185014E+39

Nth Root

^y√n

²√n	9024.6777781813
³√n	433.46543263871
⁴√n	94.998304080554
⁵√n	38.209616765833

Divisors of 81444809

1, 81444809

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	81444810	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	40722405	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	9024.677833585	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999754435	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81444809 can be divided by 2 positive divisors. The sum of these divisors (counting 81444809) is 81444810, the average is 40722405.

Base conversion 81444809

Base	System	Value
2	Binary	100110110101011111111001001
3	Ternary	12200020211021102
4	Quaternary	10312223333021
5	Quinary	131322213214
6	Senary	12025351145
8	Octal	466537711
10	Decimal	81444809
12	Duodecimal	233384b5
16	Hexadecimal	4dabfc9
20	Vigesimal	1590c09
36	Base36	1chn7t

Cryptographic Hash Functions

md5	3666cb5490413eaaded592fccb9fb60b
sha1	16972704d49d6c72ba5178e2c54c90d1fd440a47
sha256	9a7602e2fceec90919eeee3b4e97c7e30f87da28eb52cefe9d4c9b817d53a995
sha512	91dfdb3c37d2da42b73f4493cb526da61af11101bd3b0945e22520b078d4129396b2ff5e1b28cb9098bd2852db2e567b4a0e15c9ae3f052052f91476934faf24
ripemd-160	7f51b98e50b32c079ea896fc8e9fc1bf6489281d

81444809 as geometric shapes

Circle

Radius = n

Diameter	162889618
Circumference	511732827.25485
Area	2.0838991187401E+16

Sphere

Radius = n

Volume	2.2629702093474E+24
Surface area	8.3355964749602E+16
Circumference	511732827.25485

Square

Length = n

Perimeter	325779236
Area	6633256913046481
Diagonal	115180353.47269

Cube

Length = n

Surface area	39799541478278886
Volume	5.40244342331E+23
Space diagonal	141066547.20074

Equilateral Triangle

Length = n

Perimeter	244334427
Area	2.8722844982635E+15
Altitude	70533273.600371

Triangular Pyramid

Length = n

Surface area	2.8722844982635E+15
Volume	6.3668406326653E+22
Height	38393451.157562