81723269 (number)

81723269 is an odd 8-digits composite number following 81723268 and preceding 81723270. In scientific notation, it is written as 8.1723269 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 79514496 positive integers (up to 81723269) that are relatively prime to 81723269.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred twenty-three thousand two hundred sixty-nine

Notation

Scientific notation 8.1723269 × 10^7
Engineering notation 8.1723269 × 10^6

Prime Factorization of 81723269

Prime Factorization 37 × 2208737

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81723269
Product of the distinct prime numbers

The prime factorization of 81723269 is 37 × 2208737. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81723269)

Multiplication

n×y
n×2 163446538
n×3 245169807
n×4 326893076
n×5 408616345

Division

n÷y
n÷2 40861634.5
n÷3 27241089.666667
n÷3 20430817.25
n÷5 16344653.8

Exponentiation

ny
n2 6678692696046361
n3 5.4580459976733E+23
n4 4.4604936128223E+31
n5 3.6452611939346E+39

Nth Root

y√n
2√n 9040.0923114756
3√n 433.95887715863
4√n 95.079400037419
5√n 38.235708861142

Divisors of 81723269

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81723268
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81723269 can be divided by 4 positive divisors. The sum of these divisors (counting 81723269) is 1, the average is 0.25.

Base conversion 81723269

Base System Value
2 Binary 100110111101111111110000101
3 Ternary 12200202222020202
4 Quaternary 10313233332011
5 Quinary 131410121034
6 Senary 12035340245
8 Octal 467577605
10 Decimal 81723269
12 Duodecimal 23451685
16 Hexadecimal 4deff85
20 Vigesimal 15af839
36 Base36 1cnm2t

Cryptographic Hash Functions

md5 c75d08fb5ffb50aef6c94e9ab99c813b
sha1 81163ff2421960b43eefccc43d1c826c12e43f10
sha256 98ee8741d60f5cfc4f79f3f5f6da89752df247bc260b62ddabf3dbf04ec3ee70
sha512 99da881d1de6e5db67286a5bb063813c89d5e46f94fb164b791eb52c36acc9e770f1e2cd83249b89cbf02b6ec308d3778b62ae35bb9e12de7658bff05ff8855c
ripemd-160 d762dcbc0c39a0fd71718c2b0f136f12b8454218

81723269 as geometric shapes

Circle

Radius = n
Diameter 163446538
Circumference 513482443.03548
Area 2.0981731909483E+16

Sphere

Radius = n
Volume 2.2862609612328E+24
Surface area 8.3926927637932E+16
Circumference 513482443.03548

Square

Length = n
Perimeter 326893076
Area 6678692696046361
Diagonal 115574155.38126

Cube

Length = n
Surface area 40072156176278166
Volume 5.4580459976733E+23
Space diagonal 141548854.06862

Equilateral Triangle

Length = n
Perimeter 245169807
Area 2.8919587694229E+15
Altitude 70774427.034309

Triangular Pyramid

Length = n
Surface area 2.8919587694229E+15
Volume 6.4323688949715E+22
Height 38524718.460422