820121812 is an even 9-digits composite number following 820121811
and preceding 820121813 . In scientific notation, it is written as 8.20121812 × 10^8.
The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors.
There are 409459160 positive integers (up to 820121812) that are relatively prime to 820121812.
820121812 has 12 divisors, whose sum is 1437319296
The reverse of 820121812 is 218121028
Previous prime number is 683
Is Prime? no Number parity even Number length 9 Sum of Digits 25 Digital Root 7
Name
eight hundred twenty million one hundred twenty-one thousand eight hundred twelve
Scientific notation
8.20121812 × 10^8
Engineering notation
8.20121812 × 10^6
Prime Factorization
2 × 2 × 683 × 300191
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
410060906 Product of the distinct prime numbers
The prime factorization of 820121812 is 2 × 2 × 683 × 300191.
Since it has a total of 4 prime factors.
4 , 1 , 54 , 94 , 47 , 858 , 5284 , 4330 , 29967 , 30438 , 391435 , 34697 , 1727550 , 6393321 , 67270257 , 31022449 , 437295523 , 437210680 , 3064851680 , 3181567536
n×2
1640243624
n×3
2460365436
n×4
3280487248
n×5
4100609060
n÷2
410060906
n÷3
273373937.33333
n÷3
205030453
n÷5
164024362.4
n2
672599786518163344
n3
5.5161375567009E+26
n4
4.5239047282428E+35
n5
3.7101529430418E+44
2 √n28637.768977349
3 √n936.03650751267
4 √n169.22697473319
5 √n60.642301110188
1 , 2 , 4 , 683 , 1366 , 2732 , 300191 , 600382 , 1200764 , 205030453 , 410060906 , 820121812
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
-820121811 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 820121812 can be divided by 12 positive divisors.
The sum of these divisors (counting 820121812) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
110000111000100001000011010100
3
Ternary
2010011012111121221
4
Quaternary
300320201003110
5
Quinary
3134422344222
6
Senary
213214020124
8
Octal
6070410324
10
Decimal
820121812
12
Duodecimal
1aa7a7644
16
Hexadecimal
30e210d4
20
Vigesimal
cg5f4ac
36
Base36
dka21g
md5
387bec7601a72d78cc009b40e8b6125b
sha1
23e179e3939f6ee4363ac35cb69a847d0d7dbaf6
sha256
633049b021dcf387c991e7f10e6294d4cf556ab7aac10ed94a73ea8e96e0fe24
sha512
d260f33d186c089368b2b5545f723aac4167c2cfda4d55bd2237517bad3e3510498e713dac388038b53ec91dafdeabc0305e0ae4dfad52bb6d704cf9f05103b5
ripemd-160
d36813841a79326263b722bca8777658c0423a30
Diameter
1640243624
Circumference
5152977319.2559
Area
2.1130345481315E+18
Volume
2.3105942965763E+27
Surface area
8.4521381925261E+18
Circumference
5152977319.2559
Perimeter
3280487248
Area
672599786518163344
Diagonal
1159827389.3284
Surface area
4035598719108980064
Volume
5.5161375567009E+26
Space diagonal
1420492646.7795
Perimeter
2460365436
Area
2.9124425085236E+17
Altitude
710246323.38973
Surface area
2.9124425085236E+17
Volume
6.500830453835E+25
Height
386609129.77613