81873445 (number)

81873445 is an odd 8-digits composite number following 81873444 and preceding 81873446. In scientific notation, it is written as 8.1873445 × 10^7. The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors. There are 58964224 positive integers (up to 81873445) that are relatively prime to 81873445.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred seventy-three thousand four hundred forty-five

Notation

Scientific notation 8.1873445 × 10^7
Engineering notation 8.1873445 × 10^6

Prime Factorization of 81873445

Prime Factorization 85 × 23 × 41879

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81873445
Product of the distinct prime numbers

The prime factorization of 81873445 is 85 × 23 × 41879. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81873445)

Multiplication

n×y
n×2 163746890
n×3 245620335
n×4 327493780
n×5 409367225

Division

n÷y
n÷2 40936722.5
n÷3 27291148.333333
n÷3 20468361.25
n÷5 16374689

Exponentiation

ny
n2 6703260996168025
n3 5.4881907049041E+23
n4 4.4933707982748E+31
n5 3.6788774691715E+39

Nth Root

y√n
2√n 9048.39460899
3√n 434.22453111725
4√n 95.123049830154
5√n 38.249751054588

Divisors of 81873445

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81873444
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81873445 can be divided by 8 positive divisors. The sum of these divisors (counting 81873445) is 1, the average is 0.125.

Base conversion 81873445

Base System Value
2 Binary 100111000010100101000100101
3 Ternary 12201001121020211
4 Quaternary 10320110220211
5 Quinary 131424422240
6 Senary 12042455421
8 Octal 470245045
10 Decimal 81873445
12 Duodecimal 23504571
16 Hexadecimal 4e14a25
20 Vigesimal 15be3c5
36 Base36 1cqtyd

Cryptographic Hash Functions

md5 9ce42519041427edf5ca1d69c20411ac
sha1 908a8a26c5bd67b12f45d699c39914d800197fea
sha256 d92ed3fe1cc5b581d92f3f27cf9cd0928fa4e63e324926ed3158e7222282bbfe
sha512 b9a8e9bc96cf512ea534b11d18b6c9f4ce315249ae3ca01d3f60625416562784325cad16bbe63c25613c4ce39242e6e341e950976879cc187f1bba2fb3c3097c
ripemd-160 994cb50ad1089abb7d24988675fb7ae84ce0fed8

81873445 as geometric shapes

Circle

Radius = n
Diameter 163746890
Circumference 514426026.67218
Area 2.1058915500656E+16

Sphere

Radius = n
Volume 2.2988879466702E+24
Surface area 8.4235662002626E+16
Circumference 514426026.67218

Square

Length = n
Perimeter 327493780
Area 6703260996168025
Diagonal 115786536.31721

Cube

Length = n
Surface area 40219565977008150
Volume 5.4881907049041E+23
Space diagonal 141808966.5307

Equilateral Triangle

Length = n
Perimeter 245620335
Area 2.9025971554394E+15
Altitude 70904483.265348

Triangular Pyramid

Length = n
Surface area 2.9025971554394E+15
Volume 6.4678947731378E+22
Height 38595512.105736