821000245 is an odd 9-digits composite number following 821000244
and preceding 821000246 . In scientific notation, it is written as 8.21000245 × 10^8.
The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors.
There are 597225024 positive integers (up to 821000245) that are relatively prime to 821000245.
821000245 has 16 divisors, whose sum is 1076826240
The reverse of 821000245 is 542000128
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 22
Digital Root 4
Name
eight hundred twenty-one million two hundred forty-five
Scientific notation
8.21000245 × 10^8
Engineering notation
8.21000245 × 10^6
Prime Factorization
13 × 5 × 67 × 188519
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
821000245
Product of the distinct prime numbers
The prime factorization of 821000245 is 13 × 5 × 67 × 188519.
Since it has a total of 4 prime factors.
10 , 8 , 30 , 22 , 899 , 252 , 7954 , 5811 , 23432 , 47582 , 4245 , 396738 , 8041046 , 8722984 , 77608625 , 83904945 , 329228303 , 680645137 , 402234166 , 4119472751
n×2
1642000490
n×3
2463000735
n×4
3284000980
n×5
4105001225
n÷2
410500122.5
n÷3
273666748.33333
n÷3
205250061.25
n÷5
164200049
n2
674041402290060025
n3
5.5338815642028E+26
n4
4.5433181200115E+35
n5
3.7300652896424E+44
2 √n
28653.101839068
3 √n
936.37058469924
4 √n
169.27227132365
5 √n
60.65528634952
1 , 5 , 13 , 65 , 67 , 335 , 871 , 4355 , 188519 , 942595 , 2450747 , 12253735 , 12630773 , 63153865 , 164200049 , 821000245
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
-821000244
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 821000245 can be divided by 16 positive divisors.
The sum of these divisors (counting 821000245) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110000111011110111100000110101
3
Ternary
2010012212010121111
4
Quaternary
300323313200311
5
Quinary
3140134001440
6
Senary
213244515021
8
Octal
6073674065
10
Decimal
821000245
12
Duodecimal
1aab4ba71
16
Hexadecimal
30ef7835
20
Vigesimal
cgb50c5
36
Base36
dksvud
md5
866158b2d014c2c9344362ad3f46b1f5
sha1
6a3488cad9a09615e3d4f54a84ae0e7a21d5af29
sha256
ca377217b1b0071cdc29a06f311b007709820b7ef5b2dae694eedcb1af32e762
sha512
a0543a610ba33747c2ba18cd5612a019b6694de52bd7aa9924c3db7e3efe0d2f69accf7bb657d5a7a2e66db279d56331e1d45d4c80564850499561940aebffcb
ripemd-160
e404e1c6ca0fd017892e062cf14404cb81887b37
Diameter
1642000490
Circumference
5158496676.5748
Area
2.1175635176498E+18
Volume
2.3180268890581E+27
Surface area
8.4702540705993E+18
Circumference
5158496676.5748
Perimeter
3284000980
Area
674041402290060025
Diagonal
1161069681.1906
Surface area
4044248413740360150
Volume
5.5338815642028E+26
Space diagonal
1422014137.3665
Perimeter
2463000735
Area
2.9186848879284E+17
Altitude
711007068.68325
Surface area
2.9186848879284E+17
Volume
6.5217419672184E+25
Height
387023227.06354