20130621 is an odd 8-digits composite number following 20130620
and preceding 20130622 . In scientific notation, it is written as 2.0130621 × 10^7.
The sum of its digits is 15. It has a total of 4 prime factors and 12 positive divisors.
There are 11503128 positive integers (up to 20130621) that are relatively prime to 20130621.
20130621 has 12 divisors, whose sum is 31223232
The reverse of 20130621 is 12603102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty million one hundred thirty thousand six hundred twenty-one
Scientific notation
2.0130621 × 10^7
Engineering notation
2.0130621 × 10^6
Prime Factorization
7 × 3 × 7 × 136943
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2875803
Product of the distinct prime numbers
The prime factorization of 20130621 is 7 × 3 × 7 × 136943.
Since it has a total of 4 prime factors.
9 , 7 , 20 , 12 , 706 , 160 , 6429 , 2600 , 39844 , 8238 , 389896 , 445052 , 8057135 , 624495 , 47122894 , 2776906 , 75165866 , 96072096 , 7592979678 , 615395134
n×2
40261242
n×3
60391863
n×4
80522484
n×5
100653105
n÷2
10065310.5
n÷3
6710207
n÷3
5032655.25
n÷5
4026124.2
n2
405241901845641
n3
8.1577711393738E+21
n4
1.6422099901147E+29
n5
3.3058706913413E+36
2 √n
4486.7160596588
3 √n
272.0314130747
4 √n
66.982953500564
5 √n
28.891589422609
1 , 3 , 7 , 21 , 49 , 147 , 136943 , 410829 , 958601 , 2875803 , 6710207 , 20130621
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20130620
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20130621 can be divided by 12 positive divisors.
The sum of these divisors (counting 20130621) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100110010101100111101
3
Ternary
1101212202000120
4
Quaternary
1030302230331
5
Quinary
20123134441
6
Senary
1555245153
8
Octal
114625475
10
Decimal
20130621
12
Duodecimal
68a97b9
16
Hexadecimal
1332b3d
20
Vigesimal
65g6b1
36
Base36
bzgvx
md5
0e6635c6b24e9b919de64a51bbec5f19
sha1
85841d8c41857e9d3c9ac349898e96cb4c6b9ece
sha256
f14cdc37feab008917e929314d6867c0a628aa2a5b5e6b8cd07ccd15f5056481
sha512
b67e75df435fcca8b1704c0dc1c6d40343fe398926b274d5827e80f47ccda50b53bcaa91fa660c18618e56ef6e902edd8abf44a9a2aa892f4e5ff18d9dcbffd5
ripemd-160
07ef404f5c6a1042b9c6f16b0eadc158eb268541
Diameter
40261242
Circumference
126484422.0916
Area
1.273104981765E+15
Volume
3.4171191841498E+22
Surface area
5.0924199270601E+15
Circumference
126484422.0916
Perimeter
80522484
Area
405241901845641
Diagonal
28468997.237193
Surface area
2431451411073846
Volume
8.1577711393738E+21
Space diagonal
34867258.359913
Perimeter
60391863
Area
1.7547489083812E+14
Altitude
17433629.179956
Surface area
1.7547489083812E+14
Volume
9.6140254866985E+20
Height
9489665.7457309