81489467 is an odd 8-digits composite number following 81489466
and preceding 81489468 . In scientific notation, it is written as 8.1489467 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 80654080 positive integers (up to 81489467) that are relatively prime to 81489467.
81489467 has 8 divisors, whose sum is 82328400
The reverse of 81489467 is 76498418
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighty-one million four hundred eighty-nine thousand four hundred sixty-seven
Scientific notation
8.1489467 × 10^7
Engineering notation
8.1489467 × 10^6
Prime Factorization
593 × 131 × 1049
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81489467
Product of the distinct prime numbers
The prime factorization of 81489467 is 593 × 131 × 1049.
Since it has a total of 3 prime factors.
8 , 6 , 91 , 60 , 625 , 438 , 9864 , 6629 , 83227 , 23007 , 190086 , 673737 , 3818805 , 957598 , 33311815 , 42426427 , 306258170 , 388278650 , 76998340 , 8100230057
n×2
162978934
n×3
244468401
n×4
325957868
n×5
407447335
n÷2
40744733.5
n÷3
27163155.666667
n÷3
20372366.75
n÷5
16297893.4
n2
6640533231944089
n3
5.4113351366691E+23
n4
4.4096681604554E+31
n5
3.5934150804238E+39
2 √n
9027.1516548688
3 √n
433.54464440809
4 √n
95.01132382442
5 √n
38.213806083616
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
-81489466
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 81489467 can be divided by 8 positive divisors.
The sum of these divisors (counting 81489467) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110110110111000111011
3
Ternary
12200100002112102
4
Quaternary
10312312320323
5
Quinary
131330130332
6
Senary
12030334015
8
Octal
466667073
10
Decimal
81489467
12
Duodecimal
2335a30b
16
Hexadecimal
4db6e3b
20
Vigesimal
15963d7
36
Base36
1cilob
md5
364aa54d4ef9cf321067d176be7db127
sha1
7a3979f8f79e4a904075ec23ca4da403a4f6dc20
sha256
2d12749ad6f8afbc24c3f4315d237df5fa37c24ac05b9626d7ab0ec5c798eea8
sha512
67a64586e9e44a8239a425fc60cfa7f97767b648af2a7a6bce21ed5231f8a7f675ecf390e566273cb7485a71c0fb7fbb0731df0d2f14e45de8d9e4a6caed8517
ripemd-160
7e03aa03179be9020d295daabb7f72c857375c82
Diameter
162978934
Circumference
512013421.7443
Area
2.0861850417394E+16
Volume
2.2666947615296E+24
Surface area
8.3447401669578E+16
Circumference
512013421.7443
Perimeter
325957868
Area
6640533231944089
Diagonal
115243509.42195
Surface area
39843199391664534
Volume
5.4113351366691E+23
Space diagonal
141143897.12571
Perimeter
244468401
Area
2.8754352367692E+15
Altitude
70571948.562854
Surface area
2.8754352367692E+15
Volume
6.3773196173529E+22
Height
38414503.140652