81489341 is an odd 8-digits composite number following 81489340
and preceding 81489342 . In scientific notation, it is written as 8.1489341 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 81435900 positive integers (up to 81489341) that are relatively prime to 81489341.
81489341 has 4 divisors, whose sum is 81542784
The reverse of 81489341 is 14398418
Previous prime number is 1571
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million four hundred eighty-nine thousand three hundred forty-one
Scientific notation
8.1489341 × 10^7
Engineering notation
8.1489341 × 10^6
Prime Factorization
1571 × 51871
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81489341
Product of the distinct prime numbers
The prime factorization of 81489341 is 1571 × 51871.
Since it has a total of 2 prime factors.
10 , 3 , 96 , 55 , 162 , 85 , 1278 , 3878 , 76139 , 38354 , 212665 , 97614 , 30647 , 2378373 , 49311225 , 96336178 , 313971575 , 101219961 , 2868237643 , 7876291205
n×2
162978682
n×3
244468023
n×4
325957364
n×5
407446705
n÷2
40744670.5
n÷3
27163113.666667
n÷3
20372335.25
n÷5
16297868.2
n2
6640512696614281
n3
5.4113100354923E+23
n4
4.4096408873895E+31
n5
3.5933872996003E+39
2 √n
9027.1446759205
3 √n
433.54442095732
4 √n
95.011287097484
5 √n
38.213794266279
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
-81489340
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 81489341 can be divided by 4 positive divisors.
The sum of these divisors (counting 81489341) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110110110110110111101
3
Ternary
12200100002100202
4
Quaternary
10312312312331
5
Quinary
131330124331
6
Senary
12030333245
8
Octal
466666675
10
Decimal
81489341
12
Duodecimal
2335a225
16
Hexadecimal
4db6dbd
20
Vigesimal
1596371
36
Base36
1cilkt
md5
cb9636adab19a98530c9f35e88e1bb2f
sha1
1c6b5841a1838ad4875250be15ca4ec2ad95ef60
sha256
b5ae675ac86afd3642363ea68dce8d91ff7e09f7c902e4ee6b33f1e8ac3cee18
sha512
e1071193af0f496c2d5f1a9586f6c9b9f61a1c2cd602673911c40b09b80fe22e09482465d8e021d671a678b3b4d671f1e0f939a18d06a85322ebef201f1208ed
ripemd-160
9cfb8f7cfbd46f952bfc340b62b78e13388ea3a9
Diameter
162978682
Circumference
512012630.06295
Area
2.0861785903753E+16
Volume
2.2666842471732E+24
Surface area
8.3447143615013E+16
Circumference
512012630.06295
Perimeter
325957364
Area
6640512696614281
Diagonal
115243331.23105
Surface area
39843076179685686
Volume
5.4113100354923E+23
Space diagonal
141143678.88731
Perimeter
244468023
Area
2.8754263447105E+15
Altitude
70571839.443653
Surface area
2.8754263447105E+15
Volume
6.3772900353324E+22
Height
38414443.743682