247989 is an odd 6-digits composite number following 247988
and preceding 247990 . In scientific notation, it is written as 2.47989 × 10^5.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 141120 positive integers (up to 247989) that are relatively prime to 247989.
247989 has 8 divisors, whose sum is 286528
The reverse of 247989 is 989742
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 39
Digital Root 3
Name
two hundred forty-seven thousand nine hundred eighty-nine
Scientific notation
2.47989 × 10^5
Engineering notation
2.47989 × 10^3
Prime Factorization
147 × 7 × 241
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
247989
Product of the distinct prime numbers
The prime factorization of 247989 is 147 × 7 × 241.
Since it has a total of 3 prime factors.
4 , 8 , 44 , 29 , 218 , 389 , 4684 , 3468 , 83693 , 57325 , 104372 , 653459 , 8188595 , 9532307 , 70450617 , 15537395 , 216460281 , 606309644 , 3388868763 , 9742577914
n×2
495978
n×3
743967
n×4
991956
n×5
1239945
n÷2
123994.5
n÷3
82663
n÷3
61997.25
n÷5
49597.8
n2
61498544121
n3
15250962458022669
n4
3.7820709290026E+21
n5
9.3791198761242E+26
2 √n
497.98493953131
3 √n
62.826684131213
4 √n
22.315576164001
5 √n
11.99185817223
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
-247988
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 247989 can be divided by 8 positive divisors.
The sum of these divisors (counting 247989) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100100010110101
3
Ternary
110121011210
4
Quaternary
330202311
5
Quinary
30413424
6
Senary
5152033
8
Octal
744265
10
Decimal
247989
12
Duodecimal
bb619
16
Hexadecimal
3c8b5
20
Vigesimal
1ajj9
36
Base36
5bcl
md5
b5604895550813e9035bf9f07c158c2b
sha1
0ac56226e6f7af175083e54f32770fa0e1fcfa5e
sha256
21ebcd68f5e2c13ebe4d30de001d4ac076b8446c3c24b1049f73c10e594f5662
sha512
cae232303f346e46d66f8babcb893a664e3fbf046367d51645631df48bd8a2b73589e0354c9be7fd36164c6a525689ea2f1c6ea2a190a2a47af9e6c9b6d4eb17
ripemd-160
9925cf8775923424255e586a78415b2569216c75
Diameter
495978
Circumference
1558160.8411422
Area
193203374417
Volume
6.388308215773E+16
Surface area
772813497668.01
Circumference
1558160.8411422
Perimeter
991956
Area
61498544121
Diagonal
350709.40711934
Surface area
368991264726
Volume
15250962458022669
Space diagonal
429529.5477182
Perimeter
743967
Area
26629650752.272
Altitude
214764.7738591
Surface area
26629650752.272
Volume
1.7973431622815E+15
Height
116903.13570645