2155389729 is an odd 10-digits composite number following 2155389728
and preceding 2155389730 . In scientific notation, it is written as 2.155389729 × 10^9.
The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors.
There are 1426426560 positive integers (up to 2155389729) that are relatively prime to 2155389729.
2155389729 has 16 divisors, whose sum is 2894888640
The reverse of 2155389729 is 9279835512
Previous prime number is 2459
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 51
Digital Root 6
Name
two billion one hundred fifty-five million three hundred eighty-nine thousand seven hundred twenty-nine
Scientific notation
2.155389729 × 10^9
Engineering notation
2.155389729 × 10^9
Prime Factorization
3 × 157 × 2459 × 1861
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2155389729
Product of the distinct prime numbers
The prime factorization of 2155389729 is 3 × 157 × 2459 × 1861.
Since it has a total of 4 prime factors.
6 , 3 , 82 , 43 , 247 , 959 , 27 , 6867 , 77300 , 40946 , 87140 , 244098 , 3242379 , 7577315 , 53821678 , 95723452 , 549395599 , 225563888 , 4633237870 , 760443995
n×2
4310779458
n×3
6466169187
n×4
8621558916
n×5
10776948645
n÷2
1077694864.5
n÷3
718463243
n÷3
538847432.25
n÷5
431077945.8
n2
4645704883878693441
n3
1.0013304590677E+28
n4
2.1582573868094E+37
n5
4.6518858040674E+46
2 √n
46426.175041672
3 √n
1291.7404804288
4 √n
215.46734100943
5 √n
73.570746344274
1 , 3 , 157 , 471 , 1861 , 2459 , 5583 , 7377 , 292177 , 386063 , 876531 , 1158189 , 4576199 , 13728597 , 718463243 , 2155389729
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
-2155389728
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 2155389729 can be divided by 16 positive divisors.
The sum of these divisors (counting 2155389729) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10000000011110001010001100100001
3
Ternary
12120012202010212020
4
Quaternary
2000132022030201
5
Quinary
13403234432404
6
Senary
553513252053
8
Octal
20036121441
10
Decimal
2155389729
12
Duodecimal
501a04029
16
Hexadecimal
8078a321
20
Vigesimal
1ddb3e69
36
Base36
zn9hcx
md5
c2cee01fba3fe9e28c5139e5273f0604
sha1
0668eb632a36c0f693639bda0b485b72e51edd7f
sha256
41962e3bf3e2a89be8301b0c18dcca6930961f8606f7647c2c9674ec9d312bd4
sha512
c09e7ecf5d4d202ce6cdbebd2d9da79f8c4182f8eca78d035ee8daaf4ba090eac447261e117af62e5eea512e762877b832febe5e668bce0a43951691352e3fec
ripemd-160
1187e17f03a364b50bb708069c60c30735b749cc
Diameter
4310779458
Circumference
13542713076.499
Area
1.459491233394E+19
Volume
4.1943632186972E+28
Surface area
5.8379649335758E+19
Circumference
13542713076.499
Perimeter
8621558916
Area
4645704883878693441
Diagonal
3048181386.9515
Surface area
2.7874229303272E+19
Volume
1.0013304590677E+28
Space diagonal
3733244520.7401
Perimeter
6466169187
Area
2.0116492239622E+18
Altitude
1866622260.3701
Surface area
2.0116492239622E+18
Volume
1.1800792630257E+27
Height
1016060462.3172