20161621 is an odd 8-digits composite number following 20161620
and preceding 20161622 . In scientific notation, it is written as 2.0161621 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 19976544 positive integers (up to 20161621) that are relatively prime to 20161621.
20161621 has 4 divisors, whose sum is 20346700
The reverse of 20161621 is 12616102
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred sixty-one thousand six hundred twenty-one
Scientific notation
2.0161621 × 10^7
Engineering notation
2.0161621 × 10^6
Prime Factorization
109 × 184969
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20161621
Product of the distinct prime numbers
The prime factorization of 20161621 is 109 × 184969.
Since it has a total of 2 prime factors.
8 , 9 , 43 , 32 , 327 , 258 , 850 , 5864 , 83396 , 59561 , 829077 , 803419 , 8150048 , 4231467 , 18058698 , 20721125 , 167191502 , 689938974 , 9393174064 , 2006784786
n×2
40323242
n×3
60484863
n×4
80646484
n×5
100808105
n÷2
10080810.5
n÷3
6720540.3333333
n÷3
5040405.25
n÷5
4032324.2
n2
406490961347641
n3
8.1955167026168E+21
n4
1.6523490165733E+29
n5
3.3314034631873E+36
2 √n
4490.1693731974
3 √n
272.17097904139
4 √n
67.008726097408
5 √n
28.900482224158
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
-20161620
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 20161621 can be divided by 4 positive divisors.
The sum of these divisors (counting 20161621) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111010010001010101
3
Ternary
1101221022112201
4
Quaternary
1030322101111
5
Quinary
20130132441
6
Senary
2000044501
8
Octal
114722125
10
Decimal
20161621
12
Duodecimal
6903731
16
Hexadecimal
133a455
20
Vigesimal
660411
36
Base36
c04t1
md5
013b2e836e1a6182a0b3d9ea989558a0
sha1
519c6cbc096a013a213ec170e63b3d42fac13d37
sha256
9eaddbe9535cbbbf438a0e105411cfc2e9f83231c7cdf365b87162454bc2af66
sha512
7cb7c3dc0a2285663c64cffd3555bc1cb069ab1ce076fedd72927a887392d46e7acc6ef39b4cf5a1b4a8c6d7845bc28d2cc726456f0ae0d93f2e081ab6937ffb
ripemd-160
18bc5c83f065d9955b24d88422e5328dbf6b1c06
Diameter
40323242
Circumference
126679200.83612
Area
1.2770290179204E+15
Volume
3.4329300087084E+22
Surface area
5.1081160716816E+15
Circumference
126679200.83612
Perimeter
80646484
Area
406490961347641
Diagonal
28512837.857626
Surface area
2438945768085846
Volume
8.1955167026168E+21
Space diagonal
34920951.934948
Perimeter
60484863
Area
1.7601574946791E+14
Altitude
17460475.967474
Surface area
1.7601574946791E+14
Volume
9.6585090595799E+20
Height
9504279.2858754