20121009 is an odd 8-digits composite number following 20121008
and preceding 20121010 . In scientific notation, it is written as 2.0121009 × 10^7.
The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors.
There are 13390416 positive integers (up to 20121009) that are relatively prime to 20121009.
20121009 has 8 divisors, whose sum is 26875200
The reverse of 20121009 is 90012102
Previous prime number is 599
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty million one hundred twenty-one thousand nine
Scientific notation
2.0121009 × 10^7
Engineering notation
2.0121009 × 10^6
Prime Factorization
3 × 599 × 11197
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121009
Product of the distinct prime numbers
The prime factorization of 20121009 is 3 × 599 × 11197.
Since it has a total of 3 prime factors.
1 , 7 , 19 , 29 , 637 , 589 , 2797 , 717 , 15549 , 1290 , 66017 , 856886 , 4785678 , 3020788 , 2263614 , 67963001 , 668716171 , 647461583 , 784641153 , 5615305566
n×2
40242018
n×3
60363027
n×4
80484036
n×5
100605045
n÷2
10060504.5
n÷3
6707003
n÷3
5030252.25
n÷5
4024201.8
n2
404855003178081
n3
8.1460911626412E+21
n4
1.6390757359832E+29
n5
3.29798576354E+36
2 √n
4485.644769707
3 √n
271.98810952203
4 √n
66.974956287459
5 √n
28.888829855355
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121008
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121009 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121009) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000010110110001
3
Ternary
1101212020211120
4
Quaternary
1030300112301
5
Quinary
20122333014
6
Senary
1555132453
8
Octal
114602661
10
Decimal
20121009
12
Duodecimal
68a4129
16
Hexadecimal
13305b1
20
Vigesimal
65f2a9
36
Base36
bz9gx
md5
1f7c4128eeed7f6dead30c7739133885
sha1
9ef5e03550b639d6aaee21d9d13906095d94c668
sha256
e80af69e9ecf504c9f22373762d6b27b4dc1056751ec94e4b5b80ff19eece43b
sha512
d09e149824c3f5c8a8b28590b66f0035c50cc2fa7b98ce68a396b3709dbfa05b2083bfcbe78cca4237f04237b92db1ab67c72425b35aa7cc7f57d833f908e85e
ripemd-160
a52a0b26c8af3f8ba44ba7dfd0e3e1e45b5fbef6
Diameter
40242018
Circumference
126424028.11443
Area
1.2718895037533E+15
Volume
3.4122266869368E+22
Surface area
5.0875580150133E+15
Circumference
126424028.11443
Perimeter
80484036
Area
404855003178081
Diagonal
28455403.816431
Surface area
2429130019068486
Volume
8.1460911626412E+21
Space diagonal
34850609.887551
Perimeter
60363027
Area
1.7530735880072E+14
Altitude
17425304.943775
Surface area
1.7530735880072E+14
Volume
9.6002605021123E+20
Height
9485134.605477