2155281 is an odd 7-digits composite number following 2155280
and preceding 2155282 . In scientific notation, it is written as 2.155281 × 10^6.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 1436852 positive integers (up to 2155281) that are relatively prime to 2155281.
2155281 has 4 divisors, whose sum is 2873712
The reverse of 2155281 is 1825512
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 24
Digital Root 6
Name
two million one hundred fifty-five thousand two hundred eighty-one
Scientific notation
2.155281 × 10^6
Engineering notation
2.155281 × 10^6
Prime Factorization
3 × 718427
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2155281
Product of the distinct prime numbers
The prime factorization of 2155281 is 3 × 718427.
Since it has a total of 2 prime factors.
1 , 10 , 45 , 30 , 990 , 574 , 570 , 3148 , 63109 , 85343 , 491695 , 642767 , 1874995 , 6878541 , 77187986 , 75107162 , 803657793 , 622045095 , 4695251104 , 3442451942
n×2
4310562
n×3
6465843
n×4
8621124
n×5
10776405
n÷2
1077640.5
n÷3
718427
n÷3
538820.25
n÷5
431056.2
n2
4645236188961
n3
1.001178929858E+19
n4
2.1578219251233E+25
n5
4.6507125966017E+31
2 √n
1468.0875314504
3 √n
129.17187593744
4 √n
38.315630380438
5 √n
18.479949499341
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
-2155280
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 2155281 can be divided by 4 positive divisors.
The sum of these divisors (counting 2155281) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000001110001100010001
3
Ternary
11001111111020
4
Quaternary
20032030101
5
Quinary
1022432111
6
Senary
114110053
8
Octal
10161421
10
Decimal
2155281
12
Duodecimal
87b329
16
Hexadecimal
20e311
20
Vigesimal
d9841
36
Base36
1a70x
md5
6f389a57379991160c3e14ff41ae494a
sha1
dda8cd78a2a3e50b9e5e4e68fdf5d9fc39d1d557
sha256
606c19149a47fbff79c9737a000004337389fe611d717aaf3df8ad8d5f6ce555
sha512
bd7a8021d473362751716dc4c5201a5614e470f6a5716f3fdd995ff40c44ffbd1e2049fe34d28ad4e58212b3824bfe1e4cd9d92e8c1cb0a02758b31daf57f284
ripemd-160
94c6c3c728b246375dc125ad788922d9a2b729b7
Diameter
4310562
Circumference
13542029.912043
Area
14593439885429
Volume
4.1937284946277E+19
Surface area
58373759541717
Circumference
13542029.912043
Perimeter
8621124
Area
4645236188961
Diagonal
3048027.620925
Surface area
27871417133766
Volume
1.001178929858E+19
Space diagonal
3733056.1965879
Perimeter
6465843
Area
2011446273109.5
Altitude
1866528.0982939
Surface area
2011446273109.5
Volume
1.1799006841395E+18
Height
1016009.206975