20921212 is an even 8-digits composite number following 20921211
and preceding 20921213 . In scientific notation, it is written as 2.0921212 × 10^7.
The sum of its digits is 19. It has a total of 4 prime factors and 12 positive divisors.
There are 9655920 positive integers (up to 20921212) that are relatively prime to 20921212.
20921212 has 12 divisors, whose sum is 39428536
The reverse of 20921212 is 21212902
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million nine hundred twenty-one thousand two hundred twelve
Scientific notation
2.0921212 × 10^7
Engineering notation
2.0921212 × 10^6
Prime Factorization
2 × 2 × 13 × 402331
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10460606
Product of the distinct prime numbers
The prime factorization of 20921212 is 2 × 2 × 13 × 402331.
Since it has a total of 4 prime factors.
6 , 2 , 44 , 23 , 119 , 652 , 9348 , 2501 , 33414 , 17110 , 271206 , 861706 , 2672169 , 9792119 , 30507439 , 9536367 , 614940875 , 197177632 , 6087068522 , 2699837817
n×2
41842424
n×3
62763636
n×4
83684848
n×5
104606060
n÷2
10460606
n÷3
6973737.3333333
n÷3
5230303
n÷5
4184242.4
n2
437697111548944
n3
9.1571540625031E+21
n4
1.9157876145829E+29
n5
4.0080598831663E+36
2 √n
4573.971141142
3 √n
275.54695330509
4 √n
67.631140321172
5 √n
29.11503845528
1 , 2 , 4 , 13 , 26 , 52 , 402331 , 804662 , 1609324 , 5230303 , 10460606 , 20921212
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921211
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921212 can be divided by 12 positive divisors.
The sum of these divisors (counting 20921212) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111110011101101111100
3
Ternary
1110100220111201
4
Quaternary
1033303231330
5
Quinary
20323434322
6
Senary
2024225244
8
Octal
117635574
10
Decimal
20921212
12
Duodecimal
700b224
16
Hexadecimal
13f3b7c
20
Vigesimal
6af30c
36
Base36
cgews
md5
a5a87a1be3edeccbabaf9f7fe73c39c2
sha1
379fe08d396abfb27fde8d79a326eb887ffaa98c
sha256
933071e757ed9e58bf1ae24599968de27727a1dddfbec4635fe4b58da9afb27a
sha512
5c930377d48b44f3ad1cdc82824160e724a93b356e6321c3eaacd16c05e9a8eb15628340320c085e75928ceeceb219a03e333e535a7d51a89675819931f0c144
ripemd-160
166dfcba7c629600690d6fe5d5f714d1df6ea9cc
Diameter
41842424
Circumference
131451851.84679
Area
1.3750660301396E+15
Volume
3.8357397240733E+22
Surface area
5.5002641205585E+15
Circumference
131451851.84679
Perimeter
83684848
Area
437697111548944
Diagonal
29587061.751683
Surface area
2626182669293664
Volume
9.1571540625031E+21
Space diagonal
36236602.13992
Perimeter
62763636
Area
1.8952840888223E+14
Altitude
18118301.06996
Surface area
1.8952840888223E+14
Volume
1.079180955661E+21
Height
9862353.9172276