20121609 is an odd 8-digits composite number following 20121608
and preceding 20121610 . In scientific notation, it is written as 2.0121609 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13161200 positive integers (up to 20121609) that are relatively prime to 20121609.
20121609 has 8 divisors, whose sum is 27335232
The reverse of 20121609 is 90612102
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred twenty-one thousand six hundred nine
Scientific notation
2.0121609 × 10^7
Engineering notation
2.0121609 × 10^6
Prime Factorization
3 × 53 × 126551
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121609
Product of the distinct prime numbers
The prime factorization of 20121609 is 3 × 53 × 126551.
Since it has a total of 3 prime factors.
4 , 10 , 67 , 65 , 588 , 911 , 8574 , 8825 , 25408 , 76944 , 312543 , 671903 , 3968036 , 6385957 , 76845493 , 72262203 , 119307472 , 8357473 , 2342165085 , 2419233255
n×2
40243218
n×3
60364827
n×4
80486436
n×5
100608045
n÷2
10060804.5
n÷3
6707203
n÷3
5030402.25
n÷5
4024321.8
n2
404879148748881
n3
8.1468199233778E+21
n4
1.6392712509162E+29
n5
3.2984775155876E+36
2 √n
4485.7116492258
3 √n
271.99081301872
4 √n
66.975455573111
5 √n
28.889002143844
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
-20121608
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 20121609 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121609) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000100000001001
3
Ternary
1101212021122210
4
Quaternary
1030300200021
5
Quinary
20122342414
6
Senary
1555135333
8
Octal
114604011
10
Decimal
20121609
12
Duodecimal
68a4549
16
Hexadecimal
1330809
20
Vigesimal
65f409
36
Base36
bz9xl
md5
36bbb8b0f7fa6f99dd266d10cdd4af4f
sha1
5e8b145d747dfec370681c6ac53354b3cdff454e
sha256
29c5cf0796fea6aba96bc40c6053719f1c92ea1c65b509c1647f21ca90dee88c
sha512
f29de569d341857f3129fe640a0e6313462fea5ac77f7bd4dd27c4195c6c71db85409187340ae21851b1fb22218cabf4a70ad102ec44497cd0349ea8ecaf1df1
ripemd-160
235890552e40eb61186f4f1d947589c4316c4733
Diameter
40243218
Circumference
126427798.02561
Area
1.2719653593012E+15
Volume
3.4125319495204E+22
Surface area
5.0878614372047E+15
Circumference
126427798.02561
Perimeter
80486436
Area
404879148748881
Diagonal
28456252.344569
Surface area
2429274892493286
Volume
8.1468199233778E+21
Space diagonal
34851649.118035
Perimeter
60364827
Area
1.7531781413957E+14
Altitude
17425824.559018
Surface area
1.7531781413957E+14
Volume
9.6011193548769E+20
Height
9485417.4481895