2155389957 is an odd 10-digits composite number following 2155389956
and preceding 2155389958 . In scientific notation, it is written as 2.155389957 × 10^9.
The sum of its digits is 54. It has a total of 3 prime factors and 8 positive divisors.
There are 1231651368 positive integers (up to 2155389957) that are relatively prime to 2155389957.
2155389957 has 8 divisors, whose sum is 3010703520
The reverse of 2155389957 is 7599835512
Previous prime number is 3
Is Prime? no Number parity odd Number length 10 Sum of Digits 54 Digital Root 9
Name
two billion one hundred fifty-five million three hundred eighty-nine thousand nine hundred fifty-seven
Scientific notation
2.155389957 × 10^9
Engineering notation
2.155389957 × 10^9
Prime Factorization
21 × 3 × 34212539
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
2155389957 Product of the distinct prime numbers
The prime factorization of 2155389957 is 21 × 3 × 34212539.
Since it has a total of 3 prime factors.
3 , 10 , 62 , 15 , 406 , 552 , 6864 , 2066 , 27366 , 53511 , 921139 , 663752 , 14771 , 2211273 , 29046080 , 28590124 , 188256248 , 487158418 , 244517034 , 7993034512
n×2
4310779914
n×3
6466169871
n×4
8621559828
n×5
10776949785
n÷2
1077694978.5
n÷3
718463319
n÷3
538847489.25
n÷5
431077991.4
n2
4645705866736461849
n3
1.001330776834E+28
n4
2.158258300023E+37
n5
4.6518882644814E+46
2 √n46426.177497184
3 √n1291.7405259761
4 √n215.46734670753
5 √n73.570747900756
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
-2155389956 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 2155389957 can be divided by 8 positive divisors.
The sum of these divisors (counting 2155389957) is 1, the average is 0.125.
Base
System
Value
2
Binary
10000000011110001010010000000101
3
Ternary
12120012202011011200
4
Quaternary
2000132022100011
5
Quinary
13403234434312
6
Senary
553513253113
8
Octal
20036122005
10
Decimal
2155389957
12
Duodecimal
501a04199
16
Hexadecimal
8078a405
20
Vigesimal
1ddb3ehh
36
Base36
zn9hj9
md5
a9c997f0e546b8cd06dbc2b871cbe366
sha1
469ce6fa29e4eeb788a340079c69f666b61e0031
sha256
a077880204137bc2c78b8d4f89c9fad4e79b52ace581a79c552b4ea7b0421a2a
sha512
867b8a4a69458f03cc659cc52e83e0b93043622276334cc2892800410e5dcebdfb2e2cddfcebe2baf641ef83f3562d826603973766550ae0b5a1e470cab4c245
ripemd-160
d64b1ef01e1e987d17bfad4474b93cfaeada5b60
Diameter
4310779914
Circumference
13542714509.065
Area
1.4594915421678E+19
Volume
4.1943645497533E+28
Surface area
5.8379661686713E+19
Circumference
13542714509.065
Perimeter
8621559828
Area
4645705866736461849
Diagonal
3048181709.3922
Surface area
2.7874235200419E+19
Volume
1.001330776834E+28
Space diagonal
3733244915.6477
Perimeter
6466169871
Area
2.0116496495521E+18
Altitude
1866622457.8238
Surface area
2.0116496495521E+18
Volume
1.1800796375168E+27
Height
1016060569.7974