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.
81873445 has 8 divisors, whose sum is 86440320
The reverse of 81873445 is 54437818
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million eight hundred seventy-three thousand four hundred forty-five
Scientific notation
8.1873445 × 10^7
Engineering notation
8.1873445 × 10^6
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.
9 , 6 , 62 , 35 , 439 , 236 , 2216 , 1030 , 36161 , 75503 , 672291 , 890037 , 7759340 , 2478118 , 3738595 , 88877443 , 62843842 , 89275908 , 1868503067 , 9114939838
n×2
163746890
n×3
245620335
n×4
327493780
n×5
409367225
n÷2
40936722.5
n÷3
27291148.333333
n÷3
20468361.25
n÷5
16374689
n2
6703260996168025
n3
5.4881907049041E+23
n4
4.4933707982748E+31
n5
3.6788774691715E+39
2 √n
9048.39460899
3 √n
434.22453111725
4 √n
95.123049830154
5 √n
38.249751054588
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
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
md5
9ce42519041427edf5ca1d69c20411ac
sha1
908a8a26c5bd67b12f45d699c39914d800197fea
sha256
d92ed3fe1cc5b581d92f3f27cf9cd0928fa4e63e324926ed3158e7222282bbfe
sha512
b9a8e9bc96cf512ea534b11d18b6c9f4ce315249ae3ca01d3f60625416562784325cad16bbe63c25613c4ce39242e6e341e950976879cc187f1bba2fb3c3097c
ripemd-160
994cb50ad1089abb7d24988675fb7ae84ce0fed8
Diameter
163746890
Circumference
514426026.67218
Area
2.1058915500656E+16
Volume
2.2988879466702E+24
Surface area
8.4235662002626E+16
Circumference
514426026.67218
Perimeter
327493780
Area
6703260996168025
Diagonal
115786536.31721
Surface area
40219565977008150
Volume
5.4881907049041E+23
Space diagonal
141808966.5307
Perimeter
245620335
Area
2.9025971554394E+15
Altitude
70904483.265348
Surface area
2.9025971554394E+15
Volume
6.4678947731378E+22
Height
38595512.105736