20121008 is an even 8-digits composite number following 20121007
and preceding 20121009 . In scientific notation, it is written as 2.0121008 × 10^7.
The sum of its digits is 14. It has a total of 5 prime factors and 10 positive divisors.
There are 10060496 positive integers (up to 20121008) that are relatively prime to 20121008.
20121008 has 10 divisors, whose sum is 38984484
The reverse of 20121008 is 80012102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty million one hundred twenty-one thousand eight
Scientific notation
2.0121008 × 10^7
Engineering notation
2.0121008 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 1257563
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2515126
Product of the distinct prime numbers
The prime factorization of 20121008 is 2 × 2 × 2 × 2 × 1257563.
Since it has a total of 5 prime factors.
2 , 10 , 72 , 89 , 891 , 697 , 1388 , 4172 , 58407 , 6919 , 975186 , 512919 , 7370150 , 5931307 , 24494513 , 65639569 , 455575222 , 296582628 , 8891167336 , 5445729345
n×2
40242016
n×3
60363024
n×4
80484032
n×5
100605040
n÷2
10060504
n÷3
6707002.6666667
n÷3
5030252
n÷5
4024201.6
n2
404854962936064
n3
8.1460899480762E+21
n4
1.6390754101396E+29
n5
3.2979849440023E+36
2 √n
4485.6446582403
3 √n
271.98810501615
4 √n
66.974955455307
5 √n
28.888829568204
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121007
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121008 can be divided by 10 positive divisors.
The sum of these divisors (counting 20121008) is 1, the average is 0.1.
Base
System
Value
2
Binary
1001100110000010110110000
3
Ternary
1101212020211112
4
Quaternary
1030300112300
5
Quinary
20122333013
6
Senary
1555132452
8
Octal
114602660
10
Decimal
20121008
12
Duodecimal
68a4128
16
Hexadecimal
13305b0
20
Vigesimal
65f2a8
36
Base36
bz9gw
md5
0694f2941d48e78476cab29e6a451e39
sha1
48b21a1eac9c669baa940207c42811a79eed03bb
sha256
18a189e684444c49a68b839cad3d8f626195b01f53b403e1798bb9810d0a4dce
sha512
a0f2613d333a25106676cea2bd9b498d10c3ea306f333326256c0e4bdfb83c93bf35d3022010e180fc0ea2bd2383f3cdda0c29e73ad464480e341b0e5277ece3
ripemd-160
c0e9b6fc076db5f1199e7bf5c955b1eb193bde8d
Diameter
40242016
Circumference
126424021.83124
Area
1.2718893773293E+15
Volume
3.4122261781811E+22
Surface area
5.0875575093172E+15
Circumference
126424021.83124
Perimeter
80484032
Area
404854962936064
Diagonal
28455402.402218
Surface area
2429129777616384
Volume
8.1460899480762E+21
Space diagonal
34850608.1555
Perimeter
60363024
Area
1.7530734137542E+14
Altitude
17425304.07775
Surface area
1.7530734137542E+14
Volume
9.6002590707338E+20
Height
9485134.1340725