821424225 is an odd 9-digits composite number following 821424224
and preceding 821424226 . In scientific notation, it is written as 8.21424225 × 10^8.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 432544320 positive integers (up to 821424225) that are relatively prime to 821424225.
821424225 has 16 divisors, whose sum is 1153468160
The reverse of 821424225 is 522424128
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 30
Digital Root 3
Name
eight hundred twenty-one million four hundred twenty-four thousand two hundred twenty-five
Scientific notation
8.21424225 × 10^8
Engineering notation
8.21424225 × 10^6
Prime Factorization
3 × 25 × 79 × 138637
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
821424225
Product of the distinct prime numbers
The prime factorization of 821424225 is 3 × 25 × 79 × 138637.
Since it has a total of 4 prime factors.
8 , 9 , 43 , 21 , 625 , 610 , 8577 , 958 , 61515 , 94828 , 655618 , 695937 , 2716387 , 4657572 , 64333836 , 96152149 , 878405798 , 288929102 , 7344008961 , 3347402006
n×2
1642848450
n×3
2464272675
n×4
3285696900
n×5
4107121125
n÷2
410712112.5
n÷3
273808075
n÷3
205356056.25
n÷5
164284845
n2
674737757416850625
n3
5.5424593946437E+26
n4
4.5527104128392E+35
n5
3.7397066225159E+44
2 √n
28660.499385042
3 √n
936.53174343322
4 √n
169.29412094058
5 √n
60.661549762445
1 , 3 , 25 , 75 , 79 , 237 , 1975 , 5925 , 138637 , 415911 , 3465925 , 10397775 , 10952323 , 32856969 , 273808075 , 821424225
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
-821424224
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 821424225 can be divided by 16 positive divisors.
The sum of these divisors (counting 821424225) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110000111101011111000001100001
3
Ternary
2010020122200012110
4
Quaternary
300331133001201
5
Quinary
3140241033400
6
Senary
213301545533
8
Octal
6075370141
10
Decimal
821424225
12
Duodecimal
1ab1152a9
16
Hexadecimal
30f5f061
20
Vigesimal
cgdi0b5
36
Base36
dl1yzl
md5
d50bd73511d3ee0e456746ab83d8284e
sha1
a0629f683dacaee201f62a59d7ead09f7109d646
sha256
2f87321edd30ef64ace8e3c171874d9a5812431c25781a7dd312b47d2591881b
sha512
59c0bcaa2593da2fa82cdef73f4bfe61907aa4e91ebb8f8eb51f0ff55768a7e5931e208cba17d89e88941b617cebbb2f415983b2b6cad23a7122edda3c3cbee6
ripemd-160
f92733cec0c486e3b46697ca6b4ed96775f6d180
Diameter
1642848450
Circumference
5161160621.4814
Area
2.1197511818004E+18
Volume
2.321619962271E+27
Surface area
8.4790047272017E+18
Circumference
5161160621.4814
Perimeter
3285696900
Area
674737757416850625
Diagonal
1161669279.4568
Surface area
4048426544501103750
Volume
5.5424593946437E+26
Space diagonal
1422748492.2679
Perimeter
2464272675
Area
2.9217001940777E+17
Altitude
711374246.13394
Surface area
2.9217001940777E+17
Volume
6.5318510373395E+25
Height
387223093.15227