2155455 is an odd 7-digits composite number following 2155454
and preceding 2155456 . In scientific notation, it is written as 2.155455 × 10^6.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 1088640 positive integers (up to 2155455) that are relatively prime to 2155455.
2155455 has 16 divisors, whose sum is 3026400
The reverse of 2155455 is 5545512
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 27
Digital Root 9
Name
two million one hundred fifty-five thousand four hundred fifty-five
Scientific notation
2.155455 × 10^6
Engineering notation
2.155455 × 10^6
Prime Factorization
5 × 9 × 19 × 2521
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2155455
Product of the distinct prime numbers
The prime factorization of 2155455 is 5 × 9 × 19 × 2521.
Since it has a total of 4 prime factors.
3 , 1 , 89 , 63 , 171 , 460 , 4685 , 5946 , 67525 , 76785 , 890229 , 454228 , 3447669 , 9714760 , 50398794 , 639551 , 71661224 , 606743128 , 2640412762 , 9931854567
n×2
4310910
n×3
6466365
n×4
8621820
n×5
10777275
n÷2
1077727.5
n÷3
718485
n÷3
538863.75
n÷5
431091
n2
4645986257025
n3
1.0014214307636E+19
n4
2.1585188300465E+25
n5
4.6525902048179E+31
2 √n
1468.146791026
3 √n
129.17535194229
4 √n
38.316403680748
5 √n
18.480247874113
1 , 5 , 9 , 19 , 45 , 95 , 171 , 855 , 2521 , 12605 , 22689 , 47899 , 113445 , 239495 , 431091 , 2155455
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
-2155454
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 2155455 can be divided by 16 positive divisors.
The sum of these divisors (counting 2155455) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000001110001110111111
3
Ternary
11001111201200
4
Quaternary
20032032333
5
Quinary
1022433310
6
Senary
114110543
8
Octal
10161677
10
Decimal
2155455
12
Duodecimal
87b453
16
Hexadecimal
20e3bf
20
Vigesimal
d98cf
36
Base36
1a75r
md5
58b42d050cbe4ae0d4b2ab34c374d4ca
sha1
2c138dc6242874acf7c3776630c730980f590103
sha256
08bf41e34bf0ed755e301e260f6143fa2cae1cc21a208dd675acb75d4ae8b45c
sha512
b993bf16824d08a0503eff0ef90d67971652d3c56ffff9524acc4994e7adfd7286feef3c85093cf6546cd34c0e4cae190be2439cc9a75a029ff5c36b4bc241ab
ripemd-160
31cdc86b4ade2c83c145d046b194293381d61d63
Diameter
4310910
Circumference
13543123.186287
Area
14595796293749
Volume
4.1947442800457E+19
Surface area
58383185174996
Circumference
13543123.186287
Perimeter
8621820
Area
4645986257025
Diagonal
3048273.6940849
Surface area
27875917542150
Volume
1.0014214307636E+19
Space diagonal
3733357.5734284
Perimeter
6466365
Area
2011771062108.5
Altitude
1866678.7867142
Surface area
2011771062108.5
Volume
1.1801864741974E+18
Height
1016091.2313616