2155704721 is an odd 10-digits composite number following 2155704720
and preceding 2155704722 . In scientific notation, it is written as 2.155704721 × 10^9.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 2155243572 positive integers (up to 2155704721) that are relatively prime to 2155704721.
2155704721 has 4 divisors, whose sum is 2156165872
The reverse of 2155704721 is 1274075512
Previous prime number is 4723
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 34
Digital Root 7
Name
two billion one hundred fifty-five million seven hundred four thousand seven hundred twenty-one
Scientific notation
2.155704721 × 10^9
Engineering notation
2.155704721 × 10^9
Prime Factorization
4723 × 456427
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2155704721
Product of the distinct prime numbers
The prime factorization of 2155704721 is 4723 × 456427.
Since it has a total of 2 prime factors.
4 , 7 , 60 , 10 , 973 , 744 , 6919 , 8505 , 26325 , 72416 , 147652 , 396652 , 538611 , 6516659 , 107879 , 25451525 , 328618550 , 823959903 , 4672221264 , 52189774
n×2
4311409442
n×3
6467114163
n×4
8622818884
n×5
10778523605
n÷2
1077852360.5
n÷3
718568240.33333
n÷3
538926180.25
n÷5
431140944.2
n2
4647062844141687841
n3
1.00176953119E+28
n4
2.1595193077402E+37
n5
4.6552859667863E+46
2 √n
46429.567314374
3 √n
1291.8034030165
4 √n
215.47521276094
5 √n
73.572896567192
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
-2155704720
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 2155704721 can be divided by 4 positive divisors.
The sum of these divisors (counting 2155704721) is 1, the average is 0.25.
Base
System
Value
2
Binary
10000000011111010111000110010001
3
Ternary
12120020100010221121
4
Quaternary
2000133113012101
5
Quinary
13403330022341
6
Senary
553524122241
8
Octal
20037270621
10
Decimal
2155704721
12
Duodecimal
501b36381
16
Hexadecimal
807d7191
20
Vigesimal
1ddd31g1
36
Base36
zng8ep
md5
fd8cebbcff170a6651addd8a9dfc075a
sha1
105004e110c42739e4ced8493ddbdb46d73190fd
sha256
412fe126e20ee18ca6d7cce23a3d44d3cd06d3ff726fc7bef517e2ad6f596d7e
sha512
48e5ff0867f30700d3ca1cef0708087844e903e54bf44b10d62d999ee88d22b8262c91e22c60f4b879b97eab440a0ce299e6d3120e5b76b67299dd8aea83def6
ripemd-160
1ea4f28bf2474276fecf1475dd34e848abcb03d2
Diameter
4311409442
Circumference
13544692229.605
Area
1.4599178491926E+19
Volume
4.1962023997021E+28
Surface area
5.8396713967702E+19
Circumference
13544692229.605
Perimeter
8622818884
Area
4647062844141687841
Diagonal
3048626852.9099
Surface area
2.788237706485E+19
Volume
1.00176953119E+28
Space diagonal
3733790102.8881
Perimeter
6467114163
Area
2.0122372380047E+18
Altitude
1866895051.444
Surface area
2.0122372380047E+18
Volume
1.1805967144842E+27
Height
1016208950.97