128839155 is an odd 9-digits composite number following 128839154
and preceding 128839156 . In scientific notation, it is written as 1.28839155 × 10^8.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 67616640 positive integers (up to 128839155) that are relatively prime to 128839155.
128839155 has 16 divisors, whose sum is 139645440
The reverse of 128839155 is 551938821
Previous prime number is 379
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
one hundred twenty-eight million eight hundred thirty-nine thousand one hundred fifty-five
Scientific notation
1.28839155 × 10^8
Engineering notation
1.28839155 × 10^6
Prime Factorization
15 × 131 × 379 × 173
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
128839155
Product of the distinct prime numbers
The prime factorization of 128839155 is 15 × 131 × 379 × 173.
Since it has a total of 4 prime factors.
5 , 10 , 28 , 25 , 558 , 100 , 5951 , 1810 , 5359 , 44021 , 400399 , 851788 , 8111238 , 8293707 , 68696132 , 9584538 , 26373726 , 601150250 , 2559777909 , 8861963327
n×2
257678310
n×3
386517465
n×4
515356620
n×5
644195775
n÷2
64419577.5
n÷3
42946385
n÷3
32209788.75
n÷5
25767831
n2
16599527861114025
n3
2.1386691430249E+24
n4
2.755443252119E+32
n5
3.5500898025346E+40
2 √n
11350.733676728
3 √n
505.06734389291
4 √n
106.53982202317
5 √n
41.880279708005
1 , 15 , 131 , 173 , 379 , 1965 , 2595 , 5685 , 22663 , 49649 , 65567 , 339945 , 744735 , 983505 , 8589277 , 128839155
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128839154
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128839155 can be divided by 16 positive divisors.
The sum of these divisors (counting 128839155) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101011011110110111110011
3
Ternary
22222102201002120
4
Quaternary
13223132313303
5
Quinary
230440323110
6
Senary
20441245323
8
Octal
753366763
10
Decimal
128839155
12
Duodecimal
37193843
16
Hexadecimal
7adedf3
20
Vigesimal
2054hhf
36
Base36
24pgxf
md5
44a2fa52920ae470a1f0bf2c517e6db6
sha1
b49a45263e8f891eec43e2abe04145c4d1795ea6
sha256
79b85c74d9ae02874c89b53738ae1a00308cbd2e8fd04d14379e3bc6b5dcaedc
sha512
e80888bc69120debc001d3f7aba66f4ac1fbda26df49459493372566d088ffd5baa129309ebec19027886845742a7786d19c271fc5a0adc4e27ce8a31515be25
ripemd-160
695825628b9f6a48366668b365e9c91f43a997d5
Diameter
257678310
Circumference
809520285.68543
Area
5.2148954781535E+16
Volume
8.9584363575816E+24
Surface area
2.0859581912614E+17
Circumference
809520285.68543
Perimeter
515356620
Area
16599527861114025
Diagonal
182206080.36569
Surface area
99597167166684150
Volume
2.1386691430249E+24
Space diagonal
223155962.46424
Perimeter
386517465
Area
7.1878064092762E+15
Altitude
111577981.23212
Surface area
7.1878064092762E+15
Volume
2.5204457562455E+23
Height
60735360.121896