128169938 is an even 9-digits composite number following 128169937
and preceding 128169939 . In scientific notation, it is written as 1.28169938 × 10^8.
The sum of its digits is 47. It has a total of 5 prime factors and 24 positive divisors.
There are 56579952 positive integers (up to 128169938) that are relatively prime to 128169938.
128169938 has 24 divisors, whose sum is 217245888
The reverse of 128169938 is 839961821
Previous prime number is 13
Is Prime? no
Number parity even
Number length 9
Sum of Digits 47
Digital Root 2
Name
one hundred twenty-eight million one hundred sixty-nine thousand nine hundred thirty-eight
Scientific notation
1.28169938 × 10^8
Engineering notation
1.28169938 × 10^6
Prime Factorization
2 × 13 × 23 × 13 × 16487
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
9859226
Product of the distinct prime numbers
The prime factorization of 128169938 is 2 × 13 × 23 × 13 × 16487.
Since it has a total of 5 prime factors.
4 , 3 , 7 , 47 , 439 , 48 , 863 , 512 , 61009 , 81824 , 101300 , 872755 , 1807975 , 504506 , 19115570 , 30779328 , 794243600 , 444084494 , 3762449606 , 6471735618
n×2
256339876
n×3
384509814
n×4
512679752
n×5
640849690
n÷2
64084969
n÷3
42723312.666667
n÷3
32042484.5
n÷5
25633987.6
n2
16427533006923844
n3
2.1055158869904E+24
n4
2.6986384069357E+32
n5
3.4588431730137E+40
2 √n
11321.216277415
3 √n
504.19135097896
4 √n
106.40120430434
5 √n
41.836682078897
1 , 2 , 13 , 23 , 26 , 46 , 169 , 299 , 338 , 598 , 3887 , 7774 , 16487 , 32974 , 214331 , 379201 , 428662 , 758402 , 2786303 , 4929613 , 5572606 , 9859226 , 64084969 , 128169938
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
-128169937
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 128169938 can be divided by 24 positive divisors.
The sum of these divisors (counting 128169938) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111101000111011011111010010
3
Ternary
22221011201002202
4
Quaternary
13220323133102
5
Quinary
230302414223
6
Senary
20415043202
8
Octal
750733722
10
Decimal
128169938
12
Duodecimal
36b10502
16
Hexadecimal
7a3b7d2
20
Vigesimal
20114gi
36
Base36
24b4k2
md5
f4c54bdeb44f153f89b542a520ca6728
sha1
1ef57ff6e8e95e93a9c3f80ee510e74977f8dc25
sha256
f37cfaa0346ce24f6dfda520dcc7fd9712ffb3bc2392f8d6a6f63afd382583fe
sha512
08d4e509fa2e0ff1fa8770be3e2750eff2ea8b9561fea83c6b15e40f733e10fb3b48c5863cef92d6cdda33f08853d7b5cb2ab1e837594540f06ce04399d69a91
ripemd-160
2bb64afdb230d4ac96ac20385fed4a9755c0676a
Diameter
256339876
Circumference
805315471.26372
Area
5.1608617011156E+16
Volume
8.8195643234474E+24
Surface area
2.0643446804462E+17
Circumference
805315471.26372
Perimeter
512679752
Area
16427533006923844
Diagonal
181259664.60812
Surface area
98565198041543064
Volume
2.1055158869904E+24
Space diagonal
221996844.61895
Perimeter
384509814
Area
7.1133304527517E+15
Altitude
110998422.30948
Surface area
7.1133304527517E+15
Volume
2.4813742693115E+23
Height
60419888.202706