820140981 is an odd 9-digits composite number following 820140980
and preceding 820140982 . In scientific notation, it is written as 8.20140981 × 10^8.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 493138800 positive integers (up to 820140981) that are relatively prime to 820140981.
820140981 has 16 divisors, whose sum is 1202331648
The reverse of 820140981 is 189041028
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 33
Digital Root 6
Name
eight hundred twenty million one hundred forty thousand nine hundred eighty-one
Scientific notation
8.20140981 × 10^8
Engineering notation
8.20140981 × 10^6
Prime Factorization
11 × 3 × 127 × 195691
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
820140981
Product of the distinct prime numbers
The prime factorization of 820140981 is 11 × 3 × 127 × 195691.
Since it has a total of 4 prime factors.
10 , 2 , 24 , 96 , 890 , 463 , 4367 , 8444 , 99794 , 25650 , 187654 , 22416 , 3652536 , 1600018 , 71210170 , 89300666 , 727570637 , 775333581 , 8046714674 , 733657495
n×2
1640281962
n×3
2460422943
n×4
3280563924
n×5
4100704905
n÷2
410070490.5
n÷3
273380327
n÷3
205035245.25
n÷5
164028196.2
n2
672631228715642361
n3
5.5165243577008E+26
n4
4.5243276984351E+35
n5
3.7105865569601E+44
2 √n
28638.103655794
3 √n
936.04380022771
4 √n
169.22796357515
5 √n
60.64258459037
1 , 3 , 11 , 33 , 127 , 381 , 1397 , 4191 , 195691 , 587073 , 2152601 , 6457803 , 24852757 , 74558271 , 273380327 , 820140981
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
-820140980
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 820140981 can be divided by 16 positive divisors.
The sum of these divisors (counting 820140981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110000111000100101101110110101
3
Ternary
2010011020110220220
4
Quaternary
300320211232311
5
Quinary
3134424002411
6
Senary
213214244553
8
Octal
6070455665
10
Decimal
820140981
12
Duodecimal
1aa7b6759
16
Hexadecimal
30e25bb5
20
Vigesimal
cg5hc91
36
Base36
dkagtx
md5
586f313eb50d383cfa86f002ac79430b
sha1
9a75da8fa9f589d93aa09e5a0f74f549418dc4f5
sha256
d09be5f05894185bb788a572cecf79c498aa6e21bb7944d0b051eeed9e4dee0a
sha512
8baaa8054df9b473733ba8a1db3298cb1332cd6bf56a4ffe4a3df22b5a62e5d110e84ef24ec27419304517b433262f2fe7198bbdc012ad9c86d0554516532404
ripemd-160
b0dc40e48b986300fbe25e8f697b257d2580acba
Diameter
1640281962
Circumference
5153097761.6351
Area
2.1131333267081E+18
Volume
2.3107563194003E+27
Surface area
8.4525333068326E+18
Circumference
5153097761.6351
Perimeter
3280563924
Area
672631228715642361
Diagonal
1159854498.3882
Surface area
4035787372293854166
Volume
5.5165243577008E+26
Space diagonal
1420525848.4614
Perimeter
2460422943
Area
2.9125786572324E+17
Altitude
710262924.23069
Surface area
2.9125786572324E+17
Volume
6.501286303185E+25
Height
386618166.12939