821000381 is an odd 9-digits composite number following 821000380
and preceding 821000382 . In scientific notation, it is written as 8.21000381 × 10^8.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 820887612 positive integers (up to 821000381) that are relatively prime to 821000381.
821000381 has 4 divisors, whose sum is 821113152
The reverse of 821000381 is 183000128
Previous prime number is 7823
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 23
Digital Root 5
Name
eight hundred twenty-one million three hundred eighty-one
Scientific notation
8.21000381 × 10^8
Engineering notation
8.21000381 × 10^6
Prime Factorization
7823 × 104947
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
821000381
Product of the distinct prime numbers
The prime factorization of 821000381 is 7823 × 104947.
Since it has a total of 2 prime factors.
3 , 6 , 74 , 80 , 571 , 177 , 2371 , 2650 , 40423 , 76165 , 384 , 367226 , 4840671 , 3091405 , 62262082 , 61474310 , 176428365 , 692564696 , 7713829184 , 6296754062
n×2
1642000762
n×3
2463001143
n×4
3284001524
n×5
4105001905
n÷2
410500190.5
n÷3
273666793.66667
n÷3
205250095.25
n÷5
164200076.2
n2
674041625602145161
n3
5.5338843142922E+26
n4
4.5433211304438E+35
n5
3.7300683790997E+44
2 √n
28653.104212284
3 √n
936.37063640299
4 √n
169.27227833371
5 √n
60.655288359049
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
-821000380
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 821000381 can be divided by 4 positive divisors.
The sum of these divisors (counting 821000381) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000111011110111100010111101
3
Ternary
2010012212010210112
4
Quaternary
300323313202331
5
Quinary
3140134003011
6
Senary
213244515405
8
Octal
6073674275
10
Decimal
821000381
12
Duodecimal
1aab4bb65
16
Hexadecimal
30ef78bd
20
Vigesimal
cgb50j1
36
Base36
dksvy5
md5
376544408d72573d4ab39ddcf145ebeb
sha1
f6abfea4bfb3fb5d9795ea554482aea7c57654c9
sha256
999a3d816eddb5d3a9d451b7a7f526dce741d697e477418c3fdba61d2433775f
sha512
47aedd984037ae8b76cb8a34e333cd4f4b8a65bb350788f870b656ec47efc23c59e1955774b7784592574d119b2ca5f06c565e3c791b120b196a968ba5e4c1af
ripemd-160
1b5536f2500f1aff4c1a588421c05813a8ac3f82
Diameter
1642000762
Circumference
5158497531.088
Area
2.1175642192054E+18
Volume
2.3180280410128E+27
Surface area
8.4702568768217E+18
Circumference
5158497531.088
Perimeter
3284001524
Area
674041625602145161
Diagonal
1161069873.5237
Surface area
4044249753612870966
Volume
5.5338843142922E+26
Space diagonal
1422014372.9254
Perimeter
2463001143
Area
2.9186858548981E+17
Altitude
711007186.4627
Surface area
2.9186858548981E+17
Volume
6.5217452082298E+25
Height
387023291.17456