20121430 is an even 8-digits composite number following 20121429
and preceding 20121431 . In scientific notation, it is written as 2.0121430 × 10^7.
The sum of its digits is 13. It has a total of 4 prime factors and 16 positive divisors.
There are 6898752 positive integers (up to 20121430) that are relatively prime to 20121430.
20121430 has 16 divisors, whose sum is 41392800
The reverse of 20121430 is 03412102
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 13
Digital Root 4
Name
twenty million one hundred twenty-one thousand four hundred thirty
Scientific notation
2.0121430 × 10^7
Engineering notation
2.0121430 × 10^6
Prime Factorization
2 × 5 × 7 × 287449
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20121430
Product of the distinct prime numbers
The prime factorization of 20121430 is 2 × 5 × 7 × 287449.
Since it has a total of 4 prime factors.
3 , 3 , 29 , 8 , 952 , 731 , 6289 , 3425 , 24049 , 96840 , 545241 , 286562 , 4867795 , 1573025 , 28475797 , 58276876 , 151221596 , 384314083 , 6499320137 , 864820392
n×2
40242860
n×3
60364290
n×4
80485720
n×5
100607150
n÷2
10060715
n÷3
6707143.3333333
n÷3
5030357.5
n÷5
4024286
n2
404871945244900
n3
8.1466025052091E+21
n4
1.6392129204639E+29
n5
3.298330803421E+36
2 √n
4485.6916969404
3 √n
271.99000648116
4 √n
66.975306620727
5 √n
28.888950744875
1 , 2 , 5 , 7 , 10 , 14 , 35 , 70 , 287449 , 574898 , 1437245 , 2012143 , 2874490 , 4024286 , 10060715 , 20121430
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
-20121429
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 20121430 can be divided by 16 positive divisors.
The sum of these divisors (counting 20121430) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000011101010110
3
Ternary
1101212021102011
4
Quaternary
1030300131112
5
Quinary
20122341210
6
Senary
1555134434
8
Octal
114603526
10
Decimal
20121430
12
Duodecimal
68a441a
16
Hexadecimal
1330756
20
Vigesimal
65f3ba
36
Base36
bz9sm
md5
cd442c7c4581a282152acd2aff49b3ea
sha1
d5c7e16d24fef83a1f01f8a7ce6c40385295c094
sha256
68e4f7f931e5d15a08f2097a89eb26711f6f0b47ee1c650776f4743e2a083a05
sha512
789c540fbeab6f88f06d0565b222d0a9d443a36b9ceb0df2d5020df99dd72b66e4ea02b42295474d5d4b1ef60798feee842ff86cc8ad60badcaa0cfc9ab6343d
ripemd-160
1b0f43c6c6bf1d3b2a3d31759c891929cd2cfa51
Diameter
40242860
Circumference
126426673.33544
Area
1.271942728826E+15
Volume
3.4124408776108E+22
Surface area
5.0877709153039E+15
Circumference
126426673.33544
Perimeter
80485720
Area
404871945244900
Diagonal
28455999.200341
Surface area
2429231671469400
Volume
8.1466025052091E+21
Space diagonal
34851339.080941
Perimeter
60364290
Area
1.7531469493085E+14
Altitude
17425669.54047
Surface area
1.7531469493085E+14
Volume
9.6008631251078E+20
Height
9485333.0667803