20661641 is an odd 8-digits composite number following 20661640
and preceding 20661642 . In scientific notation, it is written as 2.0661641 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 14860800 positive integers (up to 20661641) that are relatively prime to 20661641.
20661641 has 16 divisors, whose sum is 27742848
The reverse of 20661641 is 14616602
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million six hundred sixty-one thousand six hundred forty-one
Scientific notation
2.0661641 × 10^7
Engineering notation
2.0661641 × 10^6
Prime Factorization
7 × 11 × 13 × 20641
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20661641
Product of the distinct prime numbers
The prime factorization of 20661641 is 7 × 11 × 13 × 20641.
Since it has a total of 4 prime factors.
5 , 1 , 92 , 71 , 458 , 886 , 9584 , 5143 , 7090 , 34090 , 344822 , 74135 , 852222 , 9300753 , 68830476 , 99092086 , 176430731 , 32044645 , 1815857314 , 3103220728
n×2
41323282
n×3
61984923
n×4
82646564
n×5
103308205
n÷2
10330820.5
n÷3
6887213.6666667
n÷3
5165410.25
n÷5
4132328.2
n2
426903408812881
n3
8.820524974568E+21
n4
1.8224652045606E+29
n5
3.7655121791622E+36
2 √n
4545.5077824155
3 √n
274.40263057513
4 √n
67.420381061038
5 √n
29.042430735591
1 , 7 , 11 , 13 , 77 , 91 , 143 , 1001 , 20641 , 144487 , 227051 , 268333 , 1589357 , 1878331 , 2951663 , 20661641
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
-20661640
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 20661641 can be divided by 16 positive divisors.
The sum of these divisors (counting 20661641) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110110100010110001001
3
Ternary
1102212201102222
4
Quaternary
1032310112021
5
Quinary
20242133031
6
Senary
2014503425
8
Octal
116642611
10
Decimal
20661641
12
Duodecimal
6b04b75
16
Hexadecimal
13b4589
20
Vigesimal
692e21
36
Base36
caumh
md5
97766d0364e2ee3b0bf854ef7fa947ef
sha1
8d369c33f3fa3069c206c98109afbf7475b57609
sha256
e3ca29d42da45f55aba16d2bb64a9b69c91d110327cdca6fd590937a2006add9
sha512
2183a5f6f08457eaa08d68e89970ee2fd8264517eab6e10de8cdfb3f4ae095f7efd12aec64ee15fb0323c179c14ab5f921ea60c2e8899e51600d803340a939f7
ripemd-160
e93f87ce6c9bd160fa4eb63a55e9b59c9a916626
Diameter
41323282
Circumference
129820919.15342
Area
1.341156612919E+15
Volume
3.6947328614544E+22
Surface area
5.3646264516759E+15
Circumference
129820919.15342
Perimeter
82646564
Area
426903408812881
Diagonal
29219972.923084
Surface area
2561420452877286
Volume
8.820524974568E+21
Space diagonal
35787011.979748
Perimeter
61984923
Area
1.8485459849706E+14
Altitude
17893505.989874
Surface area
1.8485459849706E+14
Volume
1.0395088371904E+21
Height
9739990.9743613