81489464 is an even 8-digits composite number following 81489463
and preceding 81489465 . In scientific notation, it is written as 8.1489464 × 10^7.
The sum of its digits is 44. It has a total of 6 prime factors and 32 positive divisors.
There are 34804320 positive integers (up to 81489464) that are relatively prime to 81489464.
81489464 has 32 divisors, whose sum is 175219200
The reverse of 81489464 is 46498418
Previous prime number is 311
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
eighty-one million four hundred eighty-nine thousand four hundred sixty-four
Scientific notation
8.1489464 × 10^7
Engineering notation
8.1489464 × 10^6
Prime Factorization
2 × 2 × 2 × 7 × 311 × 4679
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
20372366
Product of the distinct prime numbers
The prime factorization of 81489464 is 2 × 2 × 2 × 7 × 311 × 4679.
Since it has a total of 6 prime factors.
4 , 9 , 83 , 78 , 833 , 916 , 4510 , 3523 , 76461 , 50741 , 18277 , 665664 , 2217505 , 2109356 , 43612135 , 28264350 , 524439704 , 454858108 , 481043530 , 8223356714
n×2
162978928
n×3
244468392
n×4
325957856
n×5
407447320
n÷2
40744732
n÷3
27163154.666667
n÷3
20372366
n÷5
16297892.8
n2
6640532743007296
n3
5.4113345390211E+23
n4
4.4096675110952E+31
n5
3.5934144189736E+39
2 √n
9027.1514887034
3 √n
433.54463908784
4 √n
95.011322949969
5 √n
38.213805802251
1 , 2 , 4 , 7 , 8 , 14 , 28 , 56 , 311 , 622 , 1244 , 2177 , 2488 , 4354 , 4679 , 8708 , 9358 , 17416 , 18716 , 32753 , 37432 , 65506 , 131012 , 262024 , 1455169 , 2910338 , 5820676 , 10186183 , 11641352 , 20372366 , 40744732 , 81489464
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81489463
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81489464 can be divided by 32 positive divisors.
The sum of these divisors (counting 81489464) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110110110110111000111000
3
Ternary
12200100002112022
4
Quaternary
10312312320320
5
Quinary
131330130324
6
Senary
12030334012
8
Octal
466667070
10
Decimal
81489464
12
Duodecimal
2335a308
16
Hexadecimal
4db6e38
20
Vigesimal
15963d4
36
Base36
1cilo8
md5
d60cb2fad73597ce22552059292becaa
sha1
ea5d7ceaabce43f71a6be999861f0b7723c8e2c1
sha256
97c59e8acde95c8f8b302aa8055f204bdfbce8a19731ae5d44bb07813d931d7a
sha512
3723ff8144695aa0b95a1d97bdfd5e1f5dc95e65cb02735557b68cde59f31c8ee3a6231e61c2f40695c837b870d2f685c73007914ad69d748683b4ea880054fe
ripemd-160
f6c624183753b2e7c374f4e6e473ffc8f74c9001
Diameter
162978928
Circumference
512013402.89474
Area
2.0861848881354E+16
Volume
2.2666945111874E+24
Surface area
8.3447395525417E+16
Circumference
512013402.89474
Perimeter
325957856
Area
6640532743007296
Diagonal
115243505.17931
Surface area
39843196458043776
Volume
5.4113345390211E+23
Space diagonal
141143891.92955
Perimeter
244468392
Area
2.8754350250533E+15
Altitude
70571945.964777
Surface area
2.8754350250533E+15
Volume
6.3773189130181E+22
Height
38414501.726438