20101209 is an odd 8-digits composite number following 20101208
and preceding 20101210 . In scientific notation, it is written as 2.0101209 × 10^7.
The sum of its digits is 15. It has a total of 2 prime factors and 4 positive divisors.
There are 13400804 positive integers (up to 20101209) that are relatively prime to 20101209.
20101209 has 4 divisors, whose sum is 26801616
The reverse of 20101209 is 90210102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty million one hundred one thousand two hundred nine
Scientific notation
2.0101209 × 10^7
Engineering notation
2.0101209 × 10^6
Prime Factorization
3 × 6700403
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20101209
Product of the distinct prime numbers
The prime factorization of 20101209 is 3 × 6700403.
Since it has a total of 2 prime factors.
6 , 5 , 36 , 71 , 945 , 701 , 4763 , 4886 , 94803 , 39328 , 333689 , 80218 , 4365242 , 4112477 , 32299335 , 26613366 , 784374237 , 208698504 , 8422767671 , 3586566911
n×2
40202418
n×3
60303627
n×4
80404836
n×5
100506045
n÷2
10050604.5
n÷3
6700403
n÷3
5025302.25
n÷5
4020241.8
n2
404058603261681
n3
8.1220664324111E+21
n4
1.6326335486978E+29
n5
3.2817908182786E+36
2 √n
4483.4371859099
3 √n
271.89886396419
4 √n
66.958473593041
5 √n
28.883142028135
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
-20101208
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 20101209 can be divided by 4 positive divisors.
The sum of these divisors (counting 20101209) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101011100001011001
3
Ternary
1101211020200020
4
Quaternary
1030223201121
5
Quinary
20121214314
6
Senary
1554501053
8
Octal
114534131
10
Decimal
20101209
12
Duodecimal
6894789
16
Hexadecimal
132b859
20
Vigesimal
65cd09
36
Base36
byu6x
md5
a4b838a02bac52cfe47520d17843bfdc
sha1
8ba2a7c650bee8ae643d2a1e8fbeea7bb58ed1ca
sha256
4e5ed0905d328f1f668635c70a8eeb3802257477d3f3681d4bede55acb74f4e1
sha512
13855a43027fb2fa66ae0b2b5371cc77e5d587f4222cef4841ba6f77f1e5cab339cad99697ded4724e959667432ead3ad734fbfb91ef471de33921e4c0280973
ripemd-160
931c29fd98abf93a0d8c004ab8e73de85114b951
Diameter
40202418
Circumference
126299621.04535
Area
1.2693875396266E+15
Volume
3.4021632314708E+22
Surface area
5.0775501585066E+15
Circumference
126299621.04535
Perimeter
80404836
Area
404058603261681
Diagonal
28427402.387896
Surface area
2424351619570086
Volume
8.1220664324111E+21
Space diagonal
34816315.281561
Perimeter
60303627
Area
1.7496250752114E+14
Altitude
17408157.64078
Surface area
1.7496250752114E+14
Volume
9.5719470860092E+20
Height
9475800.7959654