821000421 is an odd 9-digits composite number following 821000420
and preceding 821000422 . In scientific notation, it is written as 8.21000421 × 10^8.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 547132320 positive integers (up to 821000421) that are relatively prime to 821000421.
821000421 has 16 divisors, whose sum is 1216744320
The reverse of 821000421 is 124000128
Previous prime number is 6521
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 18
Digital Root 9
Name
eight hundred twenty-one million four hundred twenty-one
Scientific notation
8.21000421 × 10^8
Engineering notation
8.21000421 × 10^6
Prime Factorization
9 × 3 × 6521 × 4663
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
821000421
Product of the distinct prime numbers
The prime factorization of 821000421 is 9 × 3 × 6521 × 4663.
Since it has a total of 4 prime factors.
5 , 5 , 47 , 64 , 565 , 676 , 9719 , 4123 , 86290 , 54963 , 571369 , 999530 , 738523 , 3635063 , 41556870 , 42051264 , 876218861 , 500964701 , 2484408164 , 8008683647
n×2
1642000842
n×3
2463001263
n×4
3284001684
n×5
4105002105
n÷2
410500210.5
n÷3
273666807
n÷3
205250105.25
n÷5
164200084.2
n2
674041691282177241
n3
5.5338851231422E+26
n4
4.5433220158654E+35
n5
3.730069287764E+44
2 √n
28653.104910289
3 √n
936.37065160998
4 √n
169.27228039549
5 √n
60.655288950087
1 , 3 , 9 , 27 , 4663 , 6521 , 13989 , 19563 , 41967 , 58689 , 125901 , 176067 , 30407423 , 91222269 , 273666807 , 821000421
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
-821000420
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 821000421 can be divided by 16 positive divisors.
The sum of these divisors (counting 821000421) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110000111011110111100011100101
3
Ternary
2010012212010212000
4
Quaternary
300323313203211
5
Quinary
3140134003141
6
Senary
213244515513
8
Octal
6073674345
10
Decimal
821000421
12
Duodecimal
1aab4bb99
16
Hexadecimal
30ef78e5
20
Vigesimal
cgb5111
36
Base36
dksvz9
md5
250c6a0f594f49fc036a003457ae0491
sha1
a834d79e2563d51e9949d34f1135e0df34e0f340
sha256
f9ae81818f45be190375aece54085d5898f173d0a734b1b41f89cee81b16b18d
sha512
950aeb009d170c3d0d0e8b76ed7f605c3f5992e2ab5ffbfa230068cd2a35b3b4b04f2627c996e7222b175c3e8a991d50764ef06cbc04c891bd5bd4724e59e63e
ripemd-160
bb63b21bf10bffcd4a749e685d43ad011d0aade3
Diameter
1642000842
Circumference
5158497782.4155
Area
2.1175644255453E+18
Volume
2.3180283798231E+27
Surface area
8.4702577021813E+18
Circumference
5158497782.4155
Perimeter
3284001684
Area
674041691282177241
Diagonal
1161069930.0922
Surface area
4044250147693063446
Volume
5.5338851231422E+26
Space diagonal
1422014442.2074
Perimeter
2463001263
Area
2.918686139301E+17
Altitude
711007221.10372
Surface area
2.918686139301E+17
Volume
6.5217461614687E+25
Height
387023310.03074