128839621 is an odd 9-digits prime number following 128839620
and preceding 128839622 . In scientific notation, it is written as 1.28839621 × 10^8.
The sum of its digits is 40. It has a total of 1 prime factors and 2 positive divisors.
There are 128839620 positive integers (up to 128839621) that are relatively prime to 128839621.
128839621 has 2 divisors, whose sum is 128839622
The reverse of 128839621 is 126938821
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 40 Digital Root 4
Name
one hundred twenty-eight million eight hundred thirty-nine thousand six hundred twenty-one
Scientific notation
1.28839621 × 10^8
Engineering notation
1.28839621 × 10^6
Prime Factorization
128839621
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
128839621 Product of the distinct prime numbers
The prime factorization of 128839621 is 128839621.
Since it has a total of 1 prime factors.
2 , 4 , 28 , 71 , 306 , 478 , 730 , 1524 , 73744 , 20260 , 614097 , 704362 , 2440529 , 8218977 , 17267469 , 87853677 , 900504251 , 968686292 , 7784768483 , 5734871339
n×2
257679242
n×3
386518863
n×4
515358484
n×5
644198105
n÷2
64419810.5
n÷3
42946540.333333
n÷3
32209905.25
n÷5
25767924.2
n2
16599647939423641
n3
2.1386923492488E+24
n4
2.7554831171281E+32
n5
3.5501540048268E+40
2 √n11350.754204017
3 √n505.06795282037
4 √n106.53991835935
5 √n41.880310003426
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
128839622 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
64419811 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
11350.754248067 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999844768 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128839621 can be divided by 2 positive divisors.
The sum of these divisors (counting 128839621) is 128839622, the average is 64419811.
Base
System
Value
2
Binary
111101011011110111111000101
3
Ternary
22222102201201211
4
Quaternary
13223132333011
5
Quinary
230440331441
6
Senary
20441251421
8
Octal
753367705
10
Decimal
128839621
12
Duodecimal
37193b71
16
Hexadecimal
7adefc5
20
Vigesimal
2054j11
36
Base36
24phad
md5
9084989fd18ee3d1388128ca28085133
sha1
6e2ade7197dc1e8c9432bce3b3c57778b2ab3941
sha256
3964c80026a0d65c78ba8cc6eb343bbe50d6fb06c1cb762b358efeee19378ea1
sha512
5b0a186bb7081ff8d649827b385bf36dd89665face8155834efbba4679a6d86275d2bc6dedf29335da33228ee2006b9fff722b9a92a52fb2d632fb3893e67622
ripemd-160
70fecd519b46d4c4181f6de14b2c6c2695f374e6
Diameter
257679242
Circumference
809523213.64979
Area
5.214933201867E+16
Volume
8.9585335635849E+24
Surface area
2.0859732807468E+17
Circumference
809523213.64979
Perimeter
515358484
Area
16599647939423641
Diagonal
182206739.38921
Surface area
99597887636541846
Volume
2.1386923492488E+24
Space diagonal
223156769.59992
Perimeter
386518863
Area
7.1878584047094E+15
Altitude
111578384.79996
Surface area
7.1878584047094E+15
Volume
2.5204731050427E+23
Height
60735579.796403