81125964 is an even 8-digits composite number following 81125963
and preceding 81125965 . In scientific notation, it is written as 8.1125964 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 18 positive divisors.
There are 27041976 positive integers (up to 81125964) that are relatively prime to 81125964.
81125964 has 18 divisors, whose sum is 205068500
The reverse of 81125964 is 46952118
Previous prime number is 3
Is Prime? no Number parity even Number length 8 Sum of Digits 36 Digital Root 9
Name
eighty-one million one hundred twenty-five thousand nine hundred sixty-four
Scientific notation
8.1125964 × 10^7
Engineering notation
8.1125964 × 10^6
Prime Factorization
2 × 2 × 3 × 3 × 2253499
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
13520994 Product of the distinct prime numbers
The prime factorization of 81125964 is 2 × 2 × 3 × 3 × 2253499.
Since it has a total of 5 prime factors.
10 , 4 , 97 , 52 , 559 , 627 , 9436 , 8618 , 9071 , 49851 , 835509 , 593584 , 5219402 , 1758801 , 43864376 , 68097098 , 30438751 , 368019952 , 6944948223 , 4961251911
n×2
162251928
n×3
243377892
n×4
324503856
n×5
405629820
n÷2
40562982
n÷3
27041988
n÷3
20281491
n÷5
16225192.8
n2
6581422034929296
n3
5.3392420707448E+23
n4
4.3315116001853E+31
n5
3.5139805414221E+39
2 √n9006.9952814465
3 √n432.89904076261
4 √n94.905191014225
5 √n38.179652749338
1 , 2 , 3 , 4 , 6 , 9 , 12 , 18 , 36 , 2253499 , 4506998 , 6760497 , 9013996 , 13520994 , 20281491 , 27041988 , 40562982 , 81125964
18 divisors
τ Total Divisors
18 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-81125963 Sum of the proper positive divisors of n
A Arithmetic Mean
0.055555555555556 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
18 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81125964 can be divided by 18 positive divisors.
The sum of these divisors (counting 81125964) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
100110101011110001001001100
3
Ternary
12122122121220100
4
Quaternary
10311132021030
5
Quinary
131232012324
6
Senary
12014451100
8
Octal
465361114
10
Decimal
81125964
12
Duodecimal
23203a90
16
Hexadecimal
4d5e24c
20
Vigesimal
1570ei4
36
Base36
1cat70
md5
d293a47a836ad1df51b8bddaad91a50a
sha1
10805d49ae9f25ab3eab0df3c2c34da6741a7c75
sha256
49a7ae3e8b4c5fe40cc48b2f745541249ca7e04d8755772f624da1cbe9fee2d5
sha512
fe8d33d942d39a2e5f86994cea78a260a9e4af5dc981899b5a8e070fe41ddd314463b1a7bbeaa8cc775556c89bfd3c315113ef78ff5276fbd799902c95e92e6c
ripemd-160
e5fcbcb5c17d52a03175fbbe5b84bd927472a29b
Diameter
162251928
Circumference
509729465.03558
Area
2.0676147115108E+16
Volume
2.2364964886919E+24
Surface area
8.2704588460431E+16
Circumference
509729465.03558
Perimeter
324503856
Area
6581422034929296
Diagonal
114729438.54939
Surface area
39488532209575776
Volume
5.3392420707448E+23
Space diagonal
140514291.461
Perimeter
243377892
Area
2.8498393376377E+15
Altitude
70257145.730502
Surface area
2.8498393376377E+15
Volume
6.2923571243669E+22
Height
38243146.18313