20921210 is an even 8-digits composite number following 20921209
and preceding 20921211 . In scientific notation, it is written as 2.0921210 × 10^7.
The sum of its digits is 17. It has a total of 4 prime factors and 16 positive divisors.
There are 8332800 positive integers (up to 20921210) that are relatively prime to 20921210.
20921210 has 16 divisors, whose sum is 37818792
The reverse of 20921210 is 01212902
Previous prime number is 241
Is Prime? no
Number parity even
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million nine hundred twenty-one thousand two hundred ten
Scientific notation
2.0921210 × 10^7
Engineering notation
2.0921210 × 10^6
Prime Factorization
2 × 5 × 241 × 8681
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20921210
Product of the distinct prime numbers
The prime factorization of 20921210 is 2 × 5 × 241 × 8681.
Since it has a total of 4 prime factors.
6 , 5 , 5 , 50 , 217 , 319 , 5541 , 278 , 62663 , 54018 , 186232 , 169152 , 2364059 , 804356 , 48229251 , 28717801 , 264600416 , 751883535 , 2043600262 , 9848552572
n×2
41842420
n×3
62763630
n×4
83684840
n×5
104606050
n÷2
10460605
n÷3
6973736.6666667
n÷3
5230302.5
n÷5
4184242
n2
437697027864100
n3
9.1571514363207E+21
n4
1.9157868820107E+29
n5
4.008057967379E+36
2 √n
4573.9709225136
3 √n
275.54694452462
4 √n
67.631138704842
5 √n
29.115037898619
1 , 2 , 5 , 10 , 241 , 482 , 1205 , 2410 , 8681 , 17362 , 43405 , 86810 , 2092121 , 4184242 , 10460605 , 20921210
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
-20921209
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 20921210 can be divided by 16 positive divisors.
The sum of these divisors (counting 20921210) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111110011101101111010
3
Ternary
1110100220111122
4
Quaternary
1033303231322
5
Quinary
20323434320
6
Senary
2024225242
8
Octal
117635572
10
Decimal
20921210
12
Duodecimal
700b222
16
Hexadecimal
13f3b7a
20
Vigesimal
6af30a
36
Base36
cgewq
md5
db7101f5720a62e60142b4ae8f989226
sha1
a9bccdb91fa2789e73cbd631b90ee0bddfc48cce
sha256
550ebf8d69d82d286c952c0d4837d401a3d285cf0653a7a63ce66703ac7bb1d5
sha512
6139797475c8bffc75fa0c14c96292d2b5a182aa7df35cd237042b842f62caa7100ef4ee54920d7bb27c07207916438e06b24c5b98a2ec6465b6d1727a076186
ripemd-160
a648078d59fc18af9aeb1e70bad18dda400432c3
Diameter
41842420
Circumference
131451839.28042
Area
1.3750657672359E+15
Volume
3.8357386240206E+22
Surface area
5.5002630689438E+15
Circumference
131451839.28042
Perimeter
83684840
Area
437697027864100
Diagonal
29587058.923256
Surface area
2626182167184600
Volume
9.1571514363207E+21
Space diagonal
36236598.675818
Perimeter
62763630
Area
1.8952837264563E+14
Altitude
18118299.337909
Surface area
1.8952837264563E+14
Volume
1.0791806461624E+21
Height
9862352.9744185