820145191 is an odd 9-digits composite number following 820145190
and preceding 820145192 . In scientific notation, it is written as 8.20145191 × 10^8.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 807904152 positive integers (up to 820145191) that are relatively prime to 820145191.
820145191 has 4 divisors, whose sum is 832386232
The reverse of 820145191 is 191541028
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 31
Digital Root 4
Name
eight hundred twenty million one hundred forty-five thousand one hundred ninety-one
Scientific notation
8.20145191 × 10^8
Engineering notation
8.20145191 × 10^6
Prime Factorization
67 × 12240973
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
820145191
Product of the distinct prime numbers
The prime factorization of 820145191 is 67 × 12240973.
Since it has a total of 2 prime factors.
9 , 7 , 25 , 67 , 110 , 602 , 7170 , 4928 , 51297 , 80341 , 776622 , 404569 , 5734632 , 5943811 , 23769662 , 40125388 , 35326958 , 835834617 , 1810142012 , 5764504764
n×2
1640290382
n×3
2460435573
n×4
3280580764
n×5
4100725955
n÷2
410072595.5
n÷3
273381730.33333
n÷3
205036297.75
n÷5
164029038.2
n2
672638134320426481
n3
5.5166093114611E+26
n4
4.5244205974206E+35
n5
3.7106817950359E+44
2 √n
28638.17715917
3 √n
936.04540187821
4 √n
169.22818074768
5 √n
60.642646849119
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
-820145190
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 820145191 can be divided by 4 positive divisors.
The sum of these divisors (counting 820145191) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000111000100110110000100111
3
Ternary
2010011020200200211
4
Quaternary
300320212300213
5
Quinary
3134424121231
6
Senary
213214320251
8
Octal
6070466047
10
Decimal
820145191
12
Duodecimal
1aa7b9087
16
Hexadecimal
30e26c27
20
Vigesimal
cg5i2jb
36
Base36
dkak2v
md5
12550a2d2a294489df01f11e156c8ef4
sha1
7ea8f27471dfa46b9ddf49f6c4fb0bf40fbbdb43
sha256
b895f2d2490711540ab0b911a979f5c9e879fb8058279fd7fe47ff9d01e12e4c
sha512
f9448ea9fdf14bf4a09af10f4494b9da4f08714a899c37ccf64d480929fa0d16398f2bc0a305ed701fae004ffd11e2ae5cf661d8c388f0604b2051c901ee5a7b
ripemd-160
813733568072430c1a6c54e897ad8460bd673cc6
Diameter
1640290382
Circumference
5153124213.8452
Area
2.1131550213054E+18
Volume
2.3107919047482E+27
Surface area
8.4526200852216E+18
Circumference
5153124213.8452
Perimeter
3280580764
Area
672638134320426481
Diagonal
1159860452.2273
Surface area
4035828805922558886
Volume
5.5166093114611E+26
Space diagonal
1420533140.3953
Perimeter
2460435573
Area
2.9126085593783E+17
Altitude
710266570.19764
Surface area
2.9126085593783E+17
Volume
6.5013864221517E+25
Height
386620150.74242