20421207 is an odd 8-digits composite number following 20421206
and preceding 20421208 . In scientific notation, it is written as 2.0421207 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 13577112 positive integers (up to 20421207) that are relatively prime to 20421207.
20421207 has 16 divisors, whose sum is 30336000
The reverse of 20421207 is 70212402
Previous prime number is 1579
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million four hundred twenty-one thousand two hundred seven
Scientific notation
2.0421207 × 10^7
Engineering notation
2.0421207 × 10^6
Prime Factorization
9 × 3 × 1579 × 479
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20421207
Product of the distinct prime numbers
The prime factorization of 20421207 is 9 × 3 × 1579 × 479.
Since it has a total of 4 prime factors.
1 , 6 , 75 , 48 , 803 , 442 , 3645 , 2666 , 22802 , 27412 , 769232 , 704511 , 2499038 , 4970388 , 26893329 , 48182102 , 947656248 , 306084057 , 3353174528 , 1480381769
n×2
40842414
n×3
61263621
n×4
81684828
n×5
102106035
n÷2
10210603.5
n÷3
6807069
n÷3
5105301.75
n÷5
4084241.4
n2
417025695336849
n3
8.5161680487927E+21
n4
1.7391043057118E+29
n5
3.5514609021532E+36
2 √n
4518.9829607999
3 √n
273.33409164308
4 √n
67.223381057486
5 √n
28.974522099226
1 , 3 , 9 , 27 , 479 , 1437 , 1579 , 4311 , 4737 , 12933 , 14211 , 42633 , 756341 , 2269023 , 6807069 , 20421207
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20421206
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20421207 can be divided by 16 positive divisors.
The sum of these divisors (counting 20421207) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101111001101001010111
3
Ternary
1102102111122000
4
Quaternary
1031321221113
5
Quinary
20211434312
6
Senary
2005410343
8
Octal
115715127
10
Decimal
20421207
12
Duodecimal
6a099b3
16
Hexadecimal
1379a57
20
Vigesimal
67cd07
36
Base36
c5p3r
md5
754cc582b48265e4c7951225cf6cb0e2
sha1
cb7d2478a025a1c36ddd9c24668db0eeaf59200e
sha256
3ac9c20acd2234754f38d6d26368284dabd97ade872808883561edeb28c2d89f
sha512
5edee569e4de993dd920a7d25f0e032b348c75e0610d91695452e4e445f17ebfbc5384c3ccfe5341e8531ca270b2859d3277574d81d705d0118182d604858bf2
ripemd-160
6b7e3c1c3d255f0dd5dd4727b25519e8edda646f
Diameter
40842414
Circumference
128310227.77727
Area
1.3101248608284E+15
Volume
3.5672441305098E+22
Surface area
5.2404994433137E+15
Circumference
128310227.77727
Perimeter
81684828
Area
417025695336849
Diagonal
28879947.899428
Surface area
2502154172021094
Volume
8.5161680487927E+21
Space diagonal
35370568.075881
Perimeter
61263621
Area
1.8057742309629E+14
Altitude
17685284.037941
Surface area
1.8057742309629E+14
Volume
1.0036400295043E+21
Height
9626649.2998095