821640195 is an odd 9-digits composite number following 821640194
and preceding 821640196 . In scientific notation, it is written as 8.21640195 × 10^8.
The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors.
There are 430779456 positive integers (up to 821640195) that are relatively prime to 821640195.
821640195 has 24 divisors, whose sum is 1448319600
The reverse of 821640195 is 591046128
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 36
Digital Root 9
Name
eight hundred twenty-one million six hundred forty thousand one hundred ninety-five
Scientific notation
8.21640195 × 10^8
Engineering notation
8.21640195 × 10^6
Prime Factorization
3 × 3 × 5 × 59 × 309469
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
273880065
Product of the distinct prime numbers
The prime factorization of 821640195 is 3 × 3 × 5 × 59 × 309469.
Since it has a total of 5 prime factors.
4 , 1 , 12 , 82 , 320 , 457 , 283 , 8696 , 28640 , 13388 , 241068 , 892951 , 8722088 , 7530566 , 17682832 , 11928747 , 696557559 , 788627798 , 1963868229 , 2520676491
n×2
1643280390
n×3
2464920585
n×4
3286560780
n×5
4108200975
n÷2
410820097.5
n÷3
273880065
n÷3
205410048.75
n÷5
164328039
n2
675092610039638025
n3
5.5468322375603E+26
n4
4.5575003213013E+35
n5
3.7446254527066E+44
2 √n
28664.266866606
3 √n
936.61381431721
4 √n
169.30524760505
5 √n
60.664739270838
1 , 3 , 5 , 9 , 15 , 45 , 59 , 177 , 295 , 531 , 885 , 2655 , 309469 , 928407 , 1547345 , 2785221 , 4642035 , 13926105 , 18258671 , 54776013 , 91293355 , 164328039 , 273880065 , 821640195
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-821640194
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 821640195 can be divided by 24 positive divisors.
The sum of these divisors (counting 821640195) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
110000111110010011110000000011
3
Ternary
2010021001122110100
4
Quaternary
300332103300003
5
Quinary
3140314441240
6
Senary
213310333443
8
Octal
6076236003
10
Decimal
821640195
12
Duodecimal
1ab1ba283
16
Hexadecimal
30f93c03
20
Vigesimal
cgf509f
36
Base36
dl6lmr
md5
de019813ec671fbff0023ca7ccbb4e1d
sha1
2677ac45db3b2d0774297f22763e7d1a6abc060d
sha256
33651a63ac81e102bc042b81733136732bf41576f4a7c75b648724181fbfd212
sha512
a2e10f44a3a6fa3a912484ea9ef3e4b68b59e6b528f1c99aac453cfa43f41bed7f94bb6ebc4b57d9057151b085e636f36a308f3c97250b80cb0ff9148baf8721
ripemd-160
06fc634dd5a455ac58d8a1de8d60eafc1c3d402e
Diameter
1643280390
Circumference
5162517601.0122
Area
2.1208659841933E+18
Volume
2.3234516544286E+27
Surface area
8.4834639367731E+18
Circumference
5162517601.0122
Perimeter
3286560780
Area
675092610039638025
Diagonal
1161974707.1599
Surface area
4050555660237828150
Volume
5.5468322375603E+26
Space diagonal
1423122563.2808
Perimeter
2464920585
Area
2.9232367510073E+17
Altitude
711561281.6404
Surface area
2.9232367510073E+17
Volume
6.5370044821384E+25
Height
387324902.38662