20212820 is an even 8-digits composite number following 20212819
and preceding 20212821 . In scientific notation, it is written as 2.0212820 × 10^7.
The sum of its digits is 17. It has a total of 5 prime factors and 24 positive divisors.
There are 7912736 positive integers (up to 20212820) that are relatively prime to 20212820.
20212820 has 24 divisors, whose sum is 43352064
The reverse of 20212820 is 02821202
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million two hundred twelve thousand eight hundred twenty
Scientific notation
2.0212820 × 10^7
Engineering notation
2.0212820 × 10^6
Prime Factorization
2 × 2 × 5 × 47 × 21503
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10106410
Product of the distinct prime numbers
The prime factorization of 20212820 is 2 × 2 × 5 × 47 × 21503.
Since it has a total of 5 prime factors.
7 , 10 , 18 , 38 , 612 , 824 , 99 , 4108 , 56499 , 81566 , 943817 , 49254 , 4709325 , 1301462 , 93473405 , 34525640 , 743356584 , 107738768 , 8383714580 , 6984491354
n×2
40425640
n×3
60638460
n×4
80851280
n×5
101064100
n÷2
10106410
n÷3
6737606.6666667
n÷3
5053205
n÷5
4042564
n2
408558092352400
n3
8.2581111802624E+21
n4
1.6691971482663E+29
n5
3.373918150242E+36
2 √n
4495.8669909151
3 √n
272.40117056918
4 √n
67.051226617528
5 √n
28.915145480281
1 , 2 , 4 , 5 , 10 , 20 , 47 , 94 , 188 , 235 , 470 , 940 , 21503 , 43006 , 86012 , 107515 , 215030 , 430060 , 1010641 , 2021282 , 4042564 , 5053205 , 10106410 , 20212820
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20212819
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20212820 can be divided by 24 positive divisors.
The sum of these divisors (counting 20212820) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001101000110110001010100
3
Ternary
1102000220202222
4
Quaternary
1031012301110
5
Quinary
20133302240
6
Senary
2001121512
8
Octal
115066124
10
Decimal
20212820
12
Duodecimal
6929298
16
Hexadecimal
1346c54
20
Vigesimal
666c10
36
Base36
c18b8
md5
b221cf16fa6e9b25304b3d6e12ecc1c5
sha1
f05cd357e4230d8538977176e0ee151495628e2c
sha256
87c68accdc6d1510d5625c5a1f4056a5552ab3a51d7c32dd41c7c859e248db16
sha512
68dc6cb924ffb576ad2f718b9110357109b007efe65ac7863f4fb8d9444f51da90e47635089f0bc653fd460a0a6f2ef60fa6631f88d903f9a4d483d99705d1eb
ripemd-160
4821232e697111148a8f64f460559bb53b58fb9b
Diameter
40425640
Circumference
127000893.64067
Area
1.283523101499E+15
Volume
3.459149522192E+22
Surface area
5.1340924059958E+15
Circumference
127000893.64067
Perimeter
80851280
Area
408558092352400
Diagonal
28585244.177806
Surface area
2451348554114400
Volume
8.2581111802624E+21
Space diagonal
35009631.204244
Perimeter
60638460
Area
1.7691084344944E+14
Altitude
17504815.602122
Surface area
1.7691084344944E+14
Volume
9.7322773589267E+20
Height
9528414.7259354