2155128439 is an odd 10-digits composite number following 2155128438
and preceding 2155128440 . In scientific notation, it is written as 2.155128439 × 10^9.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 2150453080 positive integers (up to 2155128439) that are relatively prime to 2155128439.
2155128439 has 4 divisors, whose sum is 2159803800
The reverse of 2155128439 is 9348215512
Previous prime number is 461
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 40
Digital Root 4
Name
two billion one hundred fifty-five million one hundred twenty-eight thousand four hundred thirty-nine
Scientific notation
2.155128439 × 10^9
Engineering notation
2.155128439 × 10^9
Prime Factorization
461 × 4674899
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2155128439
Product of the distinct prime numbers
The prime factorization of 2155128439 is 461 × 4674899.
Since it has a total of 2 prime factors.
2 , 1 , 10 , 88 , 855 , 110 , 7089 , 5264 , 39247 , 96115 , 601008 , 740869 , 9707230 , 4683627 , 79421175 , 71508901 , 903687223 , 799758846 , 7771386441 , 5682327319
n×2
4310256878
n×3
6465385317
n×4
8620513756
n×5
10775642195
n÷2
1077564219.5
n÷3
718376146.33333
n÷3
538782109.75
n÷5
431025687.8
n2
4644578588586576721
n3
1.0009663403433E+28
n4
2.1572110265557E+37
n5
4.6490668322545E+46
2 √n
46423.360918831
3 √n
1291.6882806641
4 √n
215.46081063347
5 √n
73.568962515366
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2155128438
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2155128439 can be divided by 4 positive divisors.
The sum of these divisors (counting 2155128439) is 1, the average is 0.25.
Base
System
Value
2
Binary
10000000011101001010011001110111
3
Ternary
12120012020212102211
4
Quaternary
2000131022121313
5
Quinary
13403203102224
6
Senary
553503514251
8
Octal
20035123167
10
Decimal
2155128439
12
Duodecimal
5018b8987
16
Hexadecimal
8074a677
20
Vigesimal
1dd9b11j
36
Base36
zn3vqv
md5
1ac5bf74658c93d820d051d1b5e97fcd
sha1
c2d661334442065cf74e321b8738f88e0a027af2
sha256
c326935e94a123369e4b737f09a1f1a769f1de1e8d8f88dea52520a9885de369
sha512
9bf788e3c9c18e0cb3e95dbb87c7627109db8998c393244b20a4ed90fc809e7c5126072a3c0750b580d854fc01049d897d6401befc6dbcf1b8be4d84b31e5f12
ripemd-160
123ced4fc1c4bd3fe53a20ef29ae433b15084907
Diameter
4310256878
Circumference
13541071343.01
Area
1.4591373972924E+19
Volume
4.1928380017511E+28
Surface area
5.8365495891696E+19
Circumference
13541071343.01
Perimeter
8620513756
Area
4644578588586576721
Diagonal
3047811867.0898
Surface area
2.7867471531519E+19
Volume
1.0009663403433E+28
Space diagonal
3732791953.1846
Perimeter
6465385317
Area
2.0111615237946E+18
Altitude
1866395976.5923
Surface area
2.0111615237946E+18
Volume
1.1796501449938E+27
Height
1015937289.0299