128124780 is an even 9-digits composite number following 128124779
and preceding 128124781 . In scientific notation, it is written as 1.28124780 × 10^8.
The sum of its digits is 33. It has a total of 5 prime factors and 24 positive divisors.
There are 29147136 positive integers (up to 128124780) that are relatively prime to 128124780.
128124780 has 24 divisors, whose sum is 227425968
The reverse of 128124780 is 087421821
Previous prime number is 257
Is Prime? no
Number parity even
Number length 9
Sum of Digits 33
Digital Root 6
Name
one hundred twenty-eight million one hundred twenty-four thousand seven hundred eighty
Scientific notation
1.28124780 × 10^8
Engineering notation
1.28124780 × 10^6
Prime Factorization
2 × 2 × 105 × 257 × 1187
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
64062390
Product of the distinct prime numbers
The prime factorization of 128124780 is 2 × 2 × 105 × 257 × 1187.
Since it has a total of 5 prime factors.
10 , 3 , 78 , 33 , 410 , 733 , 3203 , 2375 , 80182 , 99883 , 396891 , 660264 , 3549044 , 4758237 , 91701771 , 72650560 , 978284611 , 966335849 , 8088504811 , 8081728222
n×2
256249560
n×3
384374340
n×4
512499120
n×5
640623900
n÷2
64062390
n÷3
42708260
n÷3
32031195
n÷5
25624956
n2
16415959250048400
n3
2.1032911674014E+24
n4
2.6948371809925E+32
n5
3.4527542095048E+40
2 √n
11319.221704693
3 √n
504.13213026028
4 √n
106.39183100546
5 √n
41.833733607154
1 , 2 , 4 , 105 , 210 , 257 , 420 , 514 , 1028 , 1187 , 2374 , 4748 , 26985 , 53970 , 107940 , 124635 , 249270 , 305059 , 498540 , 610118 , 1220236 , 32031195 , 64062390 , 128124780
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128124779
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128124780 can be divided by 24 positive divisors.
The sum of these divisors (counting 128124780) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111101000110000011101101100
3
Ternary
22221002102011020
4
Quaternary
13220300131230
5
Quinary
230244443110
6
Senary
20414054140
8
Octal
750603554
10
Decimal
128124780
12
Duodecimal
36aaa350
16
Hexadecimal
7a3076c
20
Vigesimal
200fbj0
36
Base36
24a5po
md5
9afd88d44a5ade2e819072c4d1639532
sha1
3605a8a87fa488465d3b656181d17ab5cef3ec0e
sha256
b079ac4a09bfd54452768d2538a57523056868e52cfec1e7ec6bdaf8d822110f
sha512
eaaf1fdfd8b063b5334715a1b57cee92a5de7571494d912b61dd5c76d1dcf5a97e48d735179fd45cab345f5b072fba9d88340a20226398812322080b026fa0b7
ripemd-160
8b2c9f1276736951db8dccb7f94ff3fc5ec5fae6
Diameter
256249560
Circumference
805031735.18162
Area
5.1572256981581E+16
Volume
8.8102454398248E+24
Surface area
2.0628902792633E+17
Circumference
805031735.18162
Perimeter
512499120
Area
16415959250048400
Diagonal
181195801.55207
Surface area
98495755500290400
Volume
2.1032911674014E+24
Space diagonal
221918628.66858
Perimeter
384374340
Area
7.108318869016E+15
Altitude
110959314.33429
Surface area
7.108318869016E+15
Volume
2.4787524121322E+23
Height
60398600.517356