81293882 is an even 8-digits composite number following 81293881
and preceding 81293883 . In scientific notation, it is written as 8.1293882 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 40350112 positive integers (up to 81293882) that are relatively prime to 81293882.
81293882 has 8 divisors, whose sum is 122831316
The reverse of 81293882 is 28839218
Previous prime number is 137
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-one million two hundred ninety-three thousand eight hundred eighty-two
Scientific notation
8.1293882 × 10^7
Engineering notation
8.1293882 × 10^6
Prime Factorization
2 × 137 × 296693
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81293882
Product of the distinct prime numbers
The prime factorization of 81293882 is 2 × 137 × 296693.
Since it has a total of 3 prime factors.
10 , 8 , 18 , 15 , 371 , 393 , 6629 , 6723 , 54381 , 50228 , 176825 , 534347 , 609614 , 5830531 , 31664126 , 247680 , 878951093 , 495011572 , 1468357276 , 5946656352
n×2
162587764
n×3
243881646
n×4
325175528
n×5
406469410
n÷2
40646941
n÷3
27097960.666667
n÷3
20323470.5
n÷5
16258776.4
n2
6608695250629924
n3
5.3724649187867E+23
n4
4.3674852915699E+31
n5
3.5504983392962E+39
2 √n
9016.3119954891
3 √n
433.1975125949
4 √n
94.954262650442
5 √n
38.19544485645
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
-81293881
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 81293882 can be divided by 8 positive divisors.
The sum of these divisors (counting 81293882) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110000111001000111010
3
Ternary
12122222011020112
4
Quaternary
10312013020322
5
Quinary
131302401012
6
Senary
12022224322
8
Octal
466071072
10
Decimal
81293882
12
Duodecimal
232850a2
16
Hexadecimal
4d8723a
20
Vigesimal
1581ee2
36
Base36
1ceere
md5
b572bb69d34de1073ccb55d3c47b477a
sha1
559d6d734fb9adacbe2611607be6d399b1c7735f
sha256
9d65160dfd77e92ea74d71e371614ff9a5f8dd432a600603e80c4ea253e1fc0b
sha512
1f6a4973690b31c50f7631a6e691807f73f21d051408ab8b18f5ff28b3883e8b7cb86098108649d39a556ac14780edd9ac14cd7d16c1393447da57e54ab0504a
ripemd-160
fb3b99895800a892590200e9299da7a7211edc5e
Diameter
162587764
Circumference
510784524.94599
Area
2.0761828449193E+16
Volume
2.2504128427372E+24
Surface area
8.3047313796771E+16
Circumference
510784524.94599
Perimeter
325175528
Area
6608695250629924
Diagonal
114966910.46236
Surface area
39652171503779544
Volume
5.3724649187867E+23
Space diagonal
140805133.96851
Perimeter
243881646
Area
2.8616489864575E+15
Altitude
70402566.984255
Surface area
2.8616489864575E+15
Volume
6.3315106262682E+22
Height
38322303.487453