2155688 is an even 7-digits composite number following 2155687
and preceding 2155689 . In scientific notation, it is written as 2.155688 × 10^6.
The sum of its digits is 35. It has a total of 4 prime factors and 8 positive divisors.
There are 1077840 positive integers (up to 2155688) that are relatively prime to 2155688.
2155688 has 8 divisors, whose sum is 4041930
The reverse of 2155688 is 8865512
Previous prime number is 2
Is Prime? no
Number parity even
Number length 7
Sum of Digits 35
Digital Root 8
Name
two million one hundred fifty-five thousand six hundred eighty-eight
Scientific notation
2.155688 × 10^6
Engineering notation
2.155688 × 10^6
Prime Factorization
2 × 2 × 2 × 269461
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
538922
Product of the distinct prime numbers
The prime factorization of 2155688 is 2 × 2 × 2 × 269461.
Since it has a total of 4 prime factors.
8 , 5 , 87 , 94 , 554 , 905 , 7116 , 2106 , 31289 , 89413 , 520612 , 507657 , 2853189 , 8685690 , 34912728 , 27349284 , 698591314 , 518124502 , 1902051985 , 2632919381
n×2
4311376
n×3
6467064
n×4
8622752
n×5
10778440
n÷2
1077844
n÷3
718562.66666667
n÷3
538922
n÷5
431137.6
n2
4646990753344
n3
1.0017462203095E+19
n4
2.1594523061665E+25
n5
4.6551054229754E+31
2 √n
1468.22614062
3 √n
129.1800062995
4 √n
38.317439118762
5 √n
18.480647391763
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
-2155687
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 2155688 can be divided by 8 positive divisors.
The sum of these divisors (counting 2155688) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000001110010010101000
3
Ternary
11001112001022
4
Quaternary
20032102220
5
Quinary
1022440223
6
Senary
114112012
8
Octal
10162250
10
Decimal
2155688
12
Duodecimal
87b608
16
Hexadecimal
20e4a8
20
Vigesimal
d9948
36
Base36
1a7c8
md5
1be71d5d422b0b1e25e69c2aacb53071
sha1
35970e0dd4a127de5b22adf07a9dba15de46d0b7
sha256
aeb21b0073f2a3a1cc42a40b9c712da3f7eca4882b08692730edf6f96c4ff7a6
sha512
af94cc64a5b3a23318a307fb41ccaae69f6a1db524e17a0f16fa32e1cbd87af3c8e270252c3c5c2ce6ab59677729450eba47214cbe948d642a4df42f47226906
ripemd-160
66923f320f90d76d750e0da7a6f676a61ded075c
Diameter
4311376
Circumference
13544587.168463
Area
14598952012005
Volume
4.1961047553141E+19
Surface area
58395808048021
Circumference
13544587.168463
Perimeter
8622752
Area
4646990753344
Diagonal
3048603.2058449
Surface area
27881944520064
Volume
1.0017462203095E+19
Space diagonal
3733761.1412665
Perimeter
6467064
Area
2012206021773.6
Altitude
1866880.5706333
Surface area
2012206021773.6
Volume
1.180569242348E+18
Height
1016201.068615