20990144 is an even 8-digits composite number following 20990143
and preceding 20990145 . In scientific notation, it is written as 2.0990144 × 10^7.
The sum of its digits is 29. It has a total of 8 prime factors and 28 positive divisors.
There are 8995584 positive integers (up to 20990144) that are relatively prime to 20990144.
20990144 has 28 divisors, whose sum is 47603664
The reverse of 20990144 is 44109902
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million nine hundred ninety thousand one hundred forty-four
Scientific notation
2.0990144 × 10^7
Engineering notation
2.0990144 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 7 × 46853
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
655942
Product of the distinct prime numbers
The prime factorization of 20990144 is 2 × 2 × 2 × 2 × 2 × 2 × 7 × 46853.
Since it has a total of 8 prime factors.
9 , 1 , 94 , 33 , 557 , 279 , 7372 , 8317 , 82460 , 21067 , 911684 , 538648 , 7637647 , 2565969 , 26661260 , 80880191 , 432287158 , 882507703 , 8721933747 , 1578515792
n×2
41980288
n×3
62970432
n×4
83960576
n×5
104950720
n÷2
10495072
n÷3
6996714.6666667
n÷3
5247536
n÷5
4198028.8
n2
440586145140736
n3
9.2479666309089E+21
n4
1.9411615128997E+29
n5
4.0745259683023E+36
2 √n
4581.5001909855
3 √n
275.84924904792
4 √n
67.686780031151
5 √n
29.134199085243
1 , 2 , 4 , 7 , 8 , 14 , 16 , 28 , 32 , 56 , 64 , 112 , 224 , 448 , 46853 , 93706 , 187412 , 327971 , 374824 , 655942 , 749648 , 1311884 , 1499296 , 2623768 , 2998592 , 5247536 , 10495072 , 20990144
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20990143
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20990144 can be divided by 28 positive divisors.
The sum of these divisors (counting 20990144) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
1010000000100100011000000
3
Ternary
1110111102001202
4
Quaternary
1100010203000
5
Quinary
20333141034
6
Senary
2025520332
8
Octal
120044300
10
Decimal
20990144
12
Duodecimal
70430a8
16
Hexadecimal
14048c0
20
Vigesimal
6b3f74
36
Base36
chw3k
md5
dd2d9809a0916f5944a50c40865d849f
sha1
74ff2c638cefe9da7ba338ec32f4d3da1e17ced8
sha256
592643994ab36e169cb330721b7f7d95f967c4be1386a0dcc8f4f5b0f7fed529
sha512
c6af3eec51cf5658a0a90425cb7581aa847031c977ee8a5f17df6e52197336f3eb0bfc170a6f08f64a79646489f305951cfde6448f514768601b0612b7d86fb5
ripemd-160
423489bd5555403d948aeb7d587675dc846a8361
Diameter
41980288
Circumference
131884964.37638
Area
1.3841421968476E+15
Volume
3.8737792037743E+22
Surface area
5.5365687873903E+15
Circumference
131884964.37638
Perimeter
83960576
Area
440586145140736
Diagonal
29684546.320964
Surface area
2643516870844416
Volume
9.2479666309089E+21
Space diagonal
36355995.866187
Perimeter
62970432
Area
1.9077939712367E+14
Altitude
18177997.933094
Surface area
1.9077939712367E+14
Volume
1.0898833194838E+21
Height
9894848.7736547