21090178 is an even 8-digits composite number following 21090177
and preceding 21090179 . In scientific notation, it is written as 2.1090178 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 10545088 positive integers (up to 21090178) that are relatively prime to 21090178.
21090178 has 4 divisors, whose sum is 31635270
The reverse of 21090178 is 87109012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million ninety thousand one hundred seventy-eight
Scientific notation
2.1090178 × 10^7
Engineering notation
2.1090178 × 10^6
Prime Factorization
2 × 10545089
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21090178
Product of the distinct prime numbers
The prime factorization of 21090178 is 2 × 10545089.
Since it has a total of 2 prime factors.
7 , 6 , 29 , 23 , 429 , 825 , 3418 , 219 , 33160 , 93078 , 315595 , 689734 , 3362357 , 7986618 , 1582030 , 50319222 , 376331941 , 362155906 , 9113513608 , 2011726528
n×2
42180356
n×3
63270534
n×4
84360712
n×5
105450890
n÷2
10545089
n÷3
7030059.3333333
n÷3
5272544.5
n÷5
4218035.6
n2
444795608071684
n3
9.3808185478501E+21
n4
1.9784313295986E+29
n5
4.1725468902011E+36
2 √n
4592.4043811494
3 √n
276.28676523847
4 √n
67.767281051768
5 √n
29.161915622604
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
-21090177
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 21090178 can be divided by 4 positive divisors.
The sum of these divisors (counting 21090178) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011100111110000010
3
Ternary
1110200111021201
4
Quaternary
1100130332002
5
Quinary
20344341203
6
Senary
2032011414
8
Octal
120347602
10
Decimal
21090178
12
Duodecimal
7090b6a
16
Hexadecimal
141cf82
20
Vigesimal
6bg58i
36
Base36
ck1aa
md5
1dd92d8ea163e444f8de6c4d0a746990
sha1
ffcf5b2f66cf4e37ae95e7dcd59e8da5756de260
sha256
358a8b3606601a7a07064d4f472e18663cada8fcf8f1774b31d71daa174b9694
sha512
9554b4118052a66046c7db58dd8abeb78bd19f22eeca433de73044516f8b18652b7925f0c5ed3e93d22d71d9f0986ae20df2000ea1654ccb7699c8f18dab1785
ripemd-160
358c5ce07d13bc26d0d4d05064f19b180cec0c42
Diameter
42180356
Circumference
132513496.5354
Area
1.397366614667E+15
Volume
3.9294280846113E+22
Surface area
5.589466458668E+15
Circumference
132513496.5354
Perimeter
84360712
Area
444795608071684
Diagonal
29826015.760463
Surface area
2668773648430104
Volume
9.3808185478501E+21
Space diagonal
36529259.836671
Perimeter
63270534
Area
1.9260214804091E+14
Altitude
18264629.918336
Surface area
1.9260214804091E+14
Volume
1.1055400680442E+21
Height
9942005.2534876