821640198 is an even 9-digits composite number following 821640197
and preceding 821640199 . In scientific notation, it is written as 8.21640198 × 10^8.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 273811296 positive integers (up to 821640198) that are relatively prime to 821640198.
821640198 has 16 divisors, whose sum is 1643693040
The reverse of 821640198 is 891046128
Previous prime number is 4597
Is Prime? no
Number parity even
Number length 9
Sum of Digits 39
Digital Root 3
Name
eight hundred twenty-one million six hundred forty thousand one hundred ninety-eight
Scientific notation
8.21640198 × 10^8
Engineering notation
8.21640198 × 10^6
Prime Factorization
2 × 3 × 4597 × 29789
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
821640198
Product of the distinct prime numbers
The prime factorization of 821640198 is 2 × 3 × 4597 × 29789.
Since it has a total of 4 prime factors.
7 , 1 , 4 , 29 , 45 , 149 , 9751 , 1475 , 80259 , 60175 , 9601 , 662846 , 4650757 , 1530557 , 99692147 , 59592165 , 546787538 , 221511714 , 6645483957 , 7209882699
n×2
1643280396
n×3
2464920594
n×4
3286560792
n×5
4108200990
n÷2
410820099
n÷3
273880066
n÷3
205410049.5
n÷5
164328039.6
n2
675092614969479204
n3
5.5468322983186E+26
n4
4.5575003878633E+35
n5
3.7446255210691E+44
2 √n
28664.266918936
3 √n
936.61381545714
4 √n
169.30524775959
5 √n
60.664739315138
1 , 2 , 3 , 6 , 4597 , 9194 , 13791 , 27582 , 29789 , 59578 , 89367 , 178734 , 136940033 , 273880066 , 410820099 , 821640198
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
-821640197
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 821640198 can be divided by 16 positive divisors.
The sum of these divisors (counting 821640198) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110000111110010011110000000110
3
Ternary
2010021001122110110
4
Quaternary
300332103300012
5
Quinary
3140314441243
6
Senary
213310333450
8
Octal
6076236006
10
Decimal
821640198
12
Duodecimal
1ab1ba286
16
Hexadecimal
30f93c06
20
Vigesimal
cgf509i
36
Base36
dl6lmu
md5
a63cc6fcc92204cf7a72608a907c26ce
sha1
ccf4072b99105b7c472cff2005c0b381a2086080
sha256
66e542d100d83f92e03e34b99c1a3c67b93a38d2c8b9240e6ee32de656bd9491
sha512
bd658baa2887dd0f225848c5231b5cef674a90da05ce1f4a1f940b7db346aa5651dccc10100c6f4354525eb0b55dccebc1a59b0844c21f8f149fd84011f86dda
ripemd-160
a09261e2c054ef728bae7b4e4bbbeb51dae8248a
Diameter
1643280396
Circumference
5162517619.8617
Area
2.1208659996808E+18
Volume
2.323451679879E+27
Surface area
8.4834639987234E+18
Circumference
5162517619.8617
Perimeter
3286560792
Area
675092614969479204
Diagonal
1161974711.4025
Surface area
4050555689816875224
Volume
5.5468322983186E+26
Space diagonal
1423122568.477
Perimeter
2464920594
Area
2.9232367723542E+17
Altitude
711561284.23848
Surface area
2.9232367723542E+17
Volume
6.5370045537427E+25
Height
387324903.80084