2155478 is an even 7-digits composite number following 2155477
and preceding 2155479 . In scientific notation, it is written as 2.155478 × 10^6.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 994824 positive integers (up to 2155478) that are relatively prime to 2155478.
2155478 has 8 divisors, whose sum is 3481968
The reverse of 2155478 is 8745512
Previous prime number is 13
Is Prime? no
Number parity even
Number length 7
Sum of Digits 32
Digital Root 5
Name
two million one hundred fifty-five thousand four hundred seventy-eight
Scientific notation
2.155478 × 10^6
Engineering notation
2.155478 × 10^6
Prime Factorization
2 × 13 × 82903
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2155478
Product of the distinct prime numbers
The prime factorization of 2155478 is 2 × 13 × 82903.
Since it has a total of 3 prime factors.
1 , 6 , 54 , 11 , 662 , 228 , 4992 , 4463 , 63752 , 11288 , 349172 , 813972 , 818814 , 9782079 , 24106284 , 2280280 , 583780492 , 632150809 , 470061155 , 4552758858
n×2
4310956
n×3
6466434
n×4
8621912
n×5
10777390
n÷2
1077739
n÷3
718492.66666667
n÷3
538869.5
n÷5
431095.6
n2
4646085408484
n3
1.0014534884108E+19
n4
2.1586109622928E+25
n5
4.6528384397809E+31
2 √n
1468.1546240093
3 √n
129.17581140019
4 √n
38.316505895101
5 √n
18.480287313014
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
-2155477
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 2155478 can be divided by 8 positive divisors.
The sum of these divisors (counting 2155478) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000001110001111010110
3
Ternary
11001111202112
4
Quaternary
20032033112
5
Quinary
1022433403
6
Senary
114111022
8
Octal
10161726
10
Decimal
2155478
12
Duodecimal
87b472
16
Hexadecimal
20e3d6
20
Vigesimal
d98di
36
Base36
1a76e
md5
c170da66f3e32ec8f486db9ad1812bd6
sha1
0f2d104affd370de6ec56e44d41eccc1de4b45d5
sha256
5757e5d7714ec1076e222940401c484f5a47dc930f045566df8442498522c3f3
sha512
e88889566e452a37f2f0c70bf9c4a0c3f39f0366ccd8ee31b25a479828fc70a27f005997d146eaf5fc0b1bb0297fe98303f9e310ec057764ba40cb78caee0390
ripemd-160
2fc670cef5a1e960f8a2aa5286f23163232265f1
Diameter
4310956
Circumference
13543267.699549
Area
14596107787244
Volume
4.1948785628044E+19
Surface area
58384431148976
Circumference
13543267.699549
Perimeter
8621912
Area
4646085408484
Diagonal
3048306.2209968
Surface area
27876512450904
Volume
1.0014534884108E+19
Space diagonal
3733397.4105969
Perimeter
6466434
Area
2011813995949.7
Altitude
1866698.7052985
Surface area
2011813995949.7
Volume
1.180224254497E+18
Height
1016102.0736656