2155128431 is an odd 10-digits composite number following 2155128430
and preceding 2155128432 . In scientific notation, it is written as 2.155128431 × 10^9.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 2132618040 positive integers (up to 2155128431) that are relatively prime to 2155128431.
2155128431 has 8 divisors, whose sum is 2177670144
The reverse of 2155128431 is 1348215512
Previous prime number is 1487
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 32
Digital Root 5
Name
two billion one hundred fifty-five million one hundred twenty-eight thousand four hundred thirty-one
Scientific notation
2.155128431 × 10^9
Engineering notation
2.155128431 × 10^9
Prime Factorization
103 × 1487 × 14071
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2155128431
Product of the distinct prime numbers
The prime factorization of 2155128431 is 103 × 1487 × 14071.
Since it has a total of 3 prime factors.
10 , 8 , 87 , 72 , 71 , 632 , 935 , 8135 , 69250 , 35609 , 431936 , 565922 , 8437318 , 7787239 , 69001135 , 23809529 , 187688523 , 744778366 , 7727171768 , 78204027
n×2
4310256862
n×3
6465385293
n×4
8620513724
n×5
10775642155
n÷2
1077564215.5
n÷3
718376143.66667
n÷3
538782107.75
n÷5
431025686.2
n2
4644578554104521761
n3
1.0009663291964E+28
n4
2.1572109945248E+37
n5
4.6490667459661E+46
2 √n
46423.360832667
3 √n
1291.6882790658
4 √n
215.46081043351
5 √n
73.568962460747
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2155128430
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2155128431 can be divided by 8 positive divisors.
The sum of these divisors (counting 2155128431) is 1, the average is 0.125.
Base
System
Value
2
Binary
10000000011101001010011001101111
3
Ternary
12120012020212102112
4
Quaternary
2000131022121233
5
Quinary
13403203102211
6
Senary
553503514235
8
Octal
20035123157
10
Decimal
2155128431
12
Duodecimal
5018b897b
16
Hexadecimal
8074a66f
20
Vigesimal
1dd9b11b
36
Base36
zn3vqn
md5
0114707d48c1e33b023531b53ed44b38
sha1
b2c35d3462f2dcbd4f4d4c93433d2261ed3d5806
sha256
8f0b03cc03a9ffb7e3844c839cfb08a7f44af5813ceae9f25aa1a34d9627efa0
sha512
c19e506b404d3f4464163824894fd3adeecfdb2398da5e7e243a6def0c64615cdf007e4a2da2c7e63a5654f4b93aa72da533e1f193880853f687d5aa5a6d29ae
ripemd-160
556c4d1d3faa750edb2f0e25a3b54e3aa537c30f
Diameter
4310256862
Circumference
13541071292.744
Area
1.4591373864595E+19
Volume
4.1928379550587E+28
Surface area
5.8365495458382E+19
Circumference
13541071292.744
Perimeter
8620513724
Area
4644578554104521761
Diagonal
3047811855.776
Surface area
2.7867471324627E+19
Volume
1.0009663291964E+28
Space diagonal
3732791939.3282
Perimeter
6465385293
Area
2.0111615088635E+18
Altitude
1866395969.6641
Surface area
2.0111615088635E+18
Volume
1.1796501318569E+27
Height
1015937285.2587