81362942 is an even 8-digits composite number following 81362941
and preceding 81362943 . In scientific notation, it is written as 8.1362942 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 39689200 positive integers (up to 81362942) that are relatively prime to 81362942.
81362942 has 8 divisors, whose sum is 125021232
The reverse of 81362942 is 24926318
Previous prime number is 41
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-one million three hundred sixty-two thousand nine hundred forty-two
Scientific notation
8.1362942 × 10^7
Engineering notation
8.1362942 × 10^6
Prime Factorization
2 × 41 × 992231
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81362942
Product of the distinct prime numbers
The prime factorization of 81362942 is 2 × 41 × 992231.
Since it has a total of 3 prime factors.
1 , 4 , 34 , 90 , 209 , 636 , 5654 , 5389 , 15961 , 74534 , 452513 , 262281 , 5869056 , 4794453 , 55056776 , 7669051 , 694087881 , 662008380 , 9590281239 , 7763393297
n×2
162725884
n×3
244088826
n×4
325451768
n×5
406814710
n÷2
40681471
n÷3
27120980.666667
n÷3
20340735.5
n÷5
16272588.4
n2
6619928330895364
n3
5.386168448308E+23
n4
4.3823451106191E+31
n5
3.5656049105929E+39
2 √n
9020.1409079903
3 √n
433.32014647577
4 √n
94.974422388295
5 √n
38.201932138115
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
-81362941
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 81362942 can be divided by 8 positive divisors.
The sum of these divisors (counting 81362942) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010111111111111110
3
Ternary
12200002122222022
4
Quaternary
10312113333332
5
Quinary
131312103232
6
Senary
12023520142
8
Octal
466277776
10
Decimal
81362942
12
Duodecimal
232b9052
16
Hexadecimal
4d97ffe
20
Vigesimal
158a772
36
Base36
1cfw1q
md5
0e1731279811058e723d412a5c9491b2
sha1
3894b277742af9acbe761cf92daf6f29395f445a
sha256
00a4ef14952074eb6b4e42666587df1f5abe31f74549731ced50c5ed85f2da6c
sha512
686ff9a648928d4f14ff61b71eae1d4af0a000a427285385ee352bfcfb156de1e82118c9852131f51880d7b43a0deaaab40eda38efd0ec93d8ae60f03c612e1e
ripemd-160
a50368b5d931a7f493ce13c8cadff6375500587a
Diameter
162725884
Circumference
511218441.7233
Area
2.0797118211632E+16
Volume
2.2561529637602E+24
Surface area
8.3188472846527E+16
Circumference
511218441.7233
Perimeter
325451768
Area
6619928330895364
Diagonal
115064576.05098
Surface area
39719569985372184
Volume
5.386168448308E+23
Space diagonal
140924749.39728
Perimeter
244088826
Area
2.8665130528939E+15
Altitude
70462374.69864
Surface area
2.8665130528939E+15
Volume
6.347660390686E+22
Height
38354858.683659