81723340 (number)

81723340 is an even 8-digits composite number following 81723339 and preceding 81723341. In scientific notation, it is written as 8.1723340 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 12 positive divisors. There are 32689328 positive integers (up to 81723340) that are relatively prime to 81723340.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred twenty-three thousand three hundred forty

Notation

Scientific notation 8.1723340 × 10^7
Engineering notation 8.1723340 × 10^6

Prime Factorization of 81723340

Prime Factorization 2 × 2 × 5 × 4086167

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40861670
Product of the distinct prime numbers

The prime factorization of 81723340 is 2 × 2 × 5 × 4086167. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 2, 87, 89, 920, 817, 9040, 7639, 35222, 12996, 50276, 234960, 9957841, 1119866, 26714722, 34846520, 96867178, 944254421, 8425388982, 6041514951

Basic calculations (n = 81723340)

Multiplication

n×y
n×2 163446680
n×3 245170020
n×4 326893360
n×5 408616700

Division

n÷y
n÷2 40861670
n÷3 27241113.333333
n÷3 20430835
n÷5 16344668

Exponentiation

ny
n2 6678704300755600
n3 5.4580602233011E+23
n4 4.4605091136931E+31
n5 3.6452770287144E+39

Nth Root

y√n
2√n 9040.0962384258
3√n 433.959002831
4√n 95.079420688316
5√n 38.235715504867

Divisors of 81723340

1, 2, 4, 5, 10, 20, 4086167, 8172334, 16344668, 20430835, 40861670, 81723340

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81723339
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81723340 can be divided by 12 positive divisors. The sum of these divisors (counting 81723340) is 1, the average is 0.083333333333333.

Base conversion 81723340

Base System Value
2 Binary 100110111101111111111001100
3 Ternary 12200202222100101
4 Quaternary 10313233333030
5 Quinary 131410121330
6 Senary 12035340444
8 Octal 467577714
10 Decimal 81723340
12 Duodecimal 23451724
16 Hexadecimal 4deffcc
20 Vigesimal 15af870
36 Base36 1cnm4s

Cryptographic Hash Functions

md5 dda1e748efced0676f32481f3963c4b8
sha1 8939bd7e1022537520f98254f8eeaffae134a5cd
sha256 3cfb4e33afa0a021276a4c0da1a3a27ec80ecb5c2ca2a618c81619d6ee8be92f
sha512 db389758cedb5c6e861e4c8fffd7aee830fbf710ad4320042f646290ea011c1a3694e037c8d797dd55366de415c049c1a4637d82d1a37f9c62200f545352671e
ripemd-160 36b0ddebed8cba6952c2af307d9dba846482606f

81723340 as geometric shapes

Circle

Radius = n
Diameter 163446680
Circumference 513482889.14164
Area 2.0981768366752E+16

Sphere

Radius = n
Volume 2.2862669200498E+24
Surface area 8.3927073467009E+16
Circumference 513482889.14164

Square

Length = n
Perimeter 326893360
Area 6678704300755600
Diagonal 115574255.79043

Cube

Length = n
Surface area 40072225804533600
Volume 5.4580602233011E+23
Space diagonal 141548977.04423

Equilateral Triangle

Length = n
Perimeter 245170020
Area 2.8919637944094E+15
Altitude 70774488.522113

Triangular Pyramid

Length = n
Surface area 2.8919637944094E+15
Volume 6.4323856600346E+22
Height 38524751.930143