20121 is an odd 5-digits composite number following 20120
and preceding 20122 . In scientific notation, it is written as 2.0121 × 10^4.
The sum of its digits is 6. It has a total of 3 prime factors and 8 positive divisors.
There are 12672 positive integers (up to 20121) that are relatively prime to 20121.
20121 has 8 divisors, whose sum is 28320
The reverse of 20121 is 12102
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 6
Digital Root 6
Name
twenty thousand one hundred twenty-one
Scientific notation
2.0121 × 10^4
Engineering notation
2.0121 × 10^3
Prime Factorization
3 × 19 × 353
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121
Product of the distinct prime numbers
The prime factorization of 20121 is 3 × 19 × 353.
Since it has a total of 3 prime factors.
6 , 6 , 51 , 80 , 614 , 331 , 711 , 3658 , 10426 , 38203 , 865712 , 539409 , 5875379 , 1127251 , 53783117 , 46023697 , 748314170 , 527756973 , 137700560 , 6604551105
n×2
40242
n×3
60363
n×4
80484
n×5
100605
n÷2
10060.5
n÷3
6707
n÷3
5030.25
n÷5
4024.2
n2
404854641
n3
8146080231561
n4
163907280339238881
n5
3.2979783877058E+21
2 √n
141.84851074298
3 √n
27.198806896917
4 √n
11.910017243605
5 √n
7.2565453244241
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
-20120
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 20121 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111010011001
3
Ternary
1000121020
4
Quaternary
10322121
5
Quinary
1120441
6
Senary
233053
8
Octal
47231
10
Decimal
20121
12
Duodecimal
b789
16
Hexadecimal
4e99
20
Vigesimal
2a61
36
Base36
fix
md5
e34efa3403c4f206c11404a6fbc37cd0
sha1
8018521587db8865ea28688175721a4bcb4ab456
sha256
12ae265fcfe315a363b94cb06b5634257af6517781d59af94fab6a618bf70f23
sha512
5ac5e9976857e6837c1eb85b96e5864529e51438751a8d6b5d2030949d66558f9d752ccbffce223a2e9616931d146e05eed0475f268af7d6e440100d992308b6
ripemd-160
d0bc17dcd7394a5dbe5f20a0d06aa91d9c87bb4f
Diameter
40242
Circumference
126423.97156576
Area
1271888365.9373
Volume
34122221081367
Surface area
5087553463.7493
Circumference
126423.97156576
Perimeter
80484
Area
404854641
Diagonal
28455.391088509
Surface area
2429127846
Volume
8146080231561
Space diagonal
34850.594299093
Perimeter
60363
Area
175307201.97301
Altitude
17425.297149547
Surface area
175307201.97301
Volume
960024761971.08
Height
9485.1303628363