81293350 is an even 8-digits composite number following 81293349
and preceding 81293351 . In scientific notation, it is written as 8.1293350 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 32517320 positive integers (up to 81293350) that are relatively prime to 81293350.
81293350 has 12 divisors, whose sum is 151205724
The reverse of 81293350 is 05339218
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million two hundred ninety-three thousand three hundred fifty
Scientific notation
8.1293350 × 10^7
Engineering notation
8.1293350 × 10^6
Prime Factorization
2 × 5 × 5 × 1625867
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
16258670
Product of the distinct prime numbers
The prime factorization of 81293350 is 2 × 5 × 5 × 1625867.
Since it has a total of 4 prime factors.
1 , 5 , 97 , 73 , 620 , 156 , 4683 , 2560 , 36513 , 90485 , 104374 , 899171 , 6349210 , 9721602 , 53211695 , 22519719 , 674446018 , 77534387 , 7947551779 , 5484796589
n×2
162586700
n×3
243880050
n×4
325173400
n×5
406466750
n÷2
40646675
n÷3
27097783.333333
n÷3
20323337.5
n÷5
16258670
n2
6608608754222500
n3
5.3723594447007E+23
n4
4.3673709666386E+31
n5
3.5503821657079E+39
2 √n
9016.2824933561
3 √n
433.19656762186
4 √n
94.954107301138
5 √n
38.195394864915
1 , 2 , 5 , 10 , 25 , 50 , 1625867 , 3251734 , 8129335 , 16258670 , 40646675 , 81293350
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81293349
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81293350 can be divided by 12 positive divisors.
The sum of these divisors (counting 81293350) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110110000111000000100110
3
Ternary
12122222010111211
4
Quaternary
10312013000212
5
Quinary
131302341400
6
Senary
12022222034
8
Octal
466070046
10
Decimal
81293350
12
Duodecimal
2328491a
16
Hexadecimal
4d87026
20
Vigesimal
1581d7a
36
Base36
1ceecm
md5
4de93c24edbb9c9ef2dd1be1f4733ae5
sha1
f648053c3e278ceaeaec28138a102a6d2fd042e3
sha256
9ff5a6cc209822f8c9a950c99309b5c65ff0de4e2cc66a838ec71ca359d79ecd
sha512
1d785d7a3efe2acbb84bcfdfb1e023a9138874c781c80a42ce5114062850cfa3dd4c0ea17f61a3f363b3f9cda96a6617f4749deb35674f8f4006841ea77d3ba1
ripemd-160
1e6c5d34fea5ebb6df5b79b932872cc6afc7a667
Diameter
162586700
Circumference
510781182.29141
Area
2.0761556712715E+16
Volume
2.2503686618554E+24
Surface area
8.3046226850858E+16
Circumference
510781182.29141
Perimeter
325173400
Area
6608608754222500
Diagonal
114966158.10074
Surface area
39651652525335000
Volume
5.3723594447007E+23
Space diagonal
140804212.51748
Perimeter
243880050
Area
2.8616115324145E+15
Altitude
70402106.25874
Surface area
2.8616115324145E+15
Volume
6.3313863238658E+22
Height
38322052.700248