20121644 is an even 8-digits composite number following 20121643
and preceding 20121645 . In scientific notation, it is written as 2.0121644 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 6 positive divisors.
There are 10060820 positive integers (up to 20121644) that are relatively prime to 20121644.
20121644 has 6 divisors, whose sum is 35212884
The reverse of 20121644 is 44612102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred twenty-one thousand six hundred forty-four
Scientific notation
2.0121644 × 10^7
Engineering notation
2.0121644 × 10^6
Prime Factorization
2 × 2 × 5030411
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10060822
Product of the distinct prime numbers
The prime factorization of 20121644 is 2 × 2 × 5030411.
Since it has a total of 3 prime factors.
3 , 10 , 7 , 100 , 374 , 951 , 7367 , 7602 , 61160 , 19192 , 984323 , 280298 , 2375711 , 5720604 , 43246906 , 45035019 , 673081089 , 626521726 , 3460573639 , 393834387
n×2
40243288
n×3
60364932
n×4
80486576
n×5
100608220
n÷2
10060822
n÷3
6707214.6666667
n÷3
5030411
n÷5
4024328.8
n2
404880557262736
n3
8.1468624357624E+21
n4
1.6392826564938E+29
n5
3.2985062029343E+36
2 √n
4485.7155505003
3 √n
271.99097072103
4 √n
66.975484697763
5 √n
28.889012193879
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121643
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121644 can be divided by 6 positive divisors.
The sum of these divisors (counting 20121644) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001100110000100000101100
3
Ternary
1101212021201002
4
Quaternary
1030300200230
5
Quinary
20122343034
6
Senary
1555135432
8
Octal
114604054
10
Decimal
20121644
12
Duodecimal
68a4578
16
Hexadecimal
133082c
20
Vigesimal
65f424
36
Base36
bz9yk
md5
bd8a0d5c147ff8c3c27d3b95f7937ff2
sha1
b10304ab838ae746966fc9cd509b26cb5522529a
sha256
d7034441cb16489ff4f4df0fe2445eefd9ce02c1557f9543454da46e2eeaf137
sha512
3dd59cddb247b9cd0f2c83a7d142cafc178ac366d5af14797be71dce8436aed0471a5a3f018bade265eed1bf33aeb79f540a0c8edf26759cb80a12db8a1307cc
ripemd-160
705979552698a54146f2cd22ed70cbc88c1ed69b
Diameter
40243288
Circumference
126428017.9371
Area
1.271969784278E+15
Volume
3.4125497570664E+22
Surface area
5.0878791371118E+15
Circumference
126428017.9371
Perimeter
80486576
Area
404880557262736
Diagonal
28456301.842043
Surface area
2429283343576416
Volume
8.1468624357624E+21
Space diagonal
34851709.739813
Perimeter
60364932
Area
1.7531842404396E+14
Altitude
17425854.869907
Surface area
1.7531842404396E+14
Volume
9.6011694562026E+20
Height
9485433.9473477