12821821 is an odd 8-digits composite number following 12821820
and preceding 12821822 . In scientific notation, it is written as 1.2821821 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 12604444 positive integers (up to 12821821) that are relatively prime to 12821821.
12821821 has 4 divisors, whose sum is 13039200
The reverse of 12821821 is 12812821
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twelve million eight hundred twenty-one thousand eight hundred twenty-one
Scientific notation
1.2821821 × 10^7
Engineering notation
1.2821821 × 10^6
Prime Factorization
59 × 217319
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12821821
Product of the distinct prime numbers
The prime factorization of 12821821 is 59 × 217319.
Since it has a total of 2 prime factors.
1 , 2 , 78 , 20 , 39 , 298 , 868 , 2323 , 67096 , 71133 , 146786 , 114480 , 4013162 , 208405 , 13374057 , 16994394 , 819320063 , 476859181 , 8670835088 , 4565322524
n×2
25643642
n×3
38465463
n×4
51287284
n×5
64109105
n÷2
6410910.5
n÷3
4273940.3333333
n÷3
3205455.25
n÷5
2564364.2
n2
164399093756041
n3
2.1078957527022E+21
n4
2.7027062027808E+28
n5
3.4653615147645E+35
2 √n
3580.7570428612
3 √n
234.05427065671
4 √n
59.839427160203
5 √n
26.399149892978
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12821820
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12821821 can be divided by 4 positive divisors.
The sum of these divisors (counting 12821821) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000111010010100111101
3
Ternary
220010102020021
4
Quaternary
300322110331
5
Quinary
11240244241
6
Senary
1134452141
8
Octal
60722475
10
Decimal
12821821
12
Duodecimal
4364051
16
Hexadecimal
c3a53d
20
Vigesimal
402eb1
36
Base36
7mtdp
md5
e449d50870e97eb1a5d91056d22477ff
sha1
5a0646b7e83a0bc02a5e29fa0b6ba0610d2107e6
sha256
2f8fc81b55041cf378d0a14acdd774b69ca54a95fc3f5b656581d3399b5f2d2e
sha512
fe78cf0ac36d24a9ff79744076a318ad9a6d087462e612fb8271d428992454364985dc299b8f60a69772d41e5919c2b4f19f8f1c20658fab0dbafc9bf2eb5257
ripemd-160
20b260a528333ecf65d8121b08f6997ca0205617
Diameter
25643642
Circumference
80561877.318487
Area
5.164749852008E+14
Volume
8.8295330816297E+21
Surface area
2.0658999408032E+15
Circumference
80561877.318487
Perimeter
51287284
Area
164399093756041
Diagonal
18132793.15252
Surface area
986394562536246
Volume
2.1078957527022E+21
Space diagonal
22208045.417554
Perimeter
38465463
Area
71186895775936
Altitude
11104022.708777
Surface area
71186895775936
Volume
2.4841789679501E+20
Height
6044264.3841734