287221427 is an odd 9-digits prime number following 287221426
and preceding 287221428 . In scientific notation, it is written as 2.87221427 × 10^8.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 287221426 positive integers (up to 287221427) that are relatively prime to 287221427.
287221427 has 2 divisors, whose sum is 287221428
The reverse of 287221427 is 724122782
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 35
Digital Root 8
Name
two hundred eighty-seven million two hundred twenty-one thousand four hundred twenty-seven
Scientific notation
2.87221427 × 10^8
Engineering notation
2.87221427 × 10^6
Prime Factorization
287221427
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
287221427
Product of the distinct prime numbers
The prime factorization of 287221427 is 287221427.
Since it has a total of 1 prime factors.
1 , 4 , 53 , 24 , 655 , 248 , 3737 , 4446 , 14257 , 64693 , 741785 , 701014 , 695198 , 1256633 , 87733011 , 51946810 , 405517277 , 308730095 , 2662909643 , 2583247043
n×2
574442854
n×3
861664281
n×4
1148885708
n×5
1436107135
n÷2
143610713.5
n÷3
95740475.666667
n÷3
71805356.75
n÷5
57444285.4
n2
82496148127916329
n3
2.3694661387304E+25
n4
6.8056144559431E+33
n5
1.9547182956478E+42
2 √n
16947.608297338
3 √n
659.78982211761
4 √n
130.18298006014
5 √n
49.163564970708
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
287221428
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
143610714
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
16947.608326841
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999930367
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 287221427 can be divided by 2 positive divisors.
The sum of these divisors (counting 287221427) is 287221428, the average is 143610714.
Base
System
Value
2
Binary
10001000111101010011010110011
3
Ternary
202000110100201122
4
Quaternary
101013222122303
5
Quinary
1042012041202
6
Senary
44300052455
8
Octal
2107523263
10
Decimal
287221427
12
Duodecimal
8023412b
16
Hexadecimal
111ea6b3
20
Vigesimal
49f2db7
36
Base36
4r05gz
md5
96f30795634aa6ccead6939b48bc55d2
sha1
fde41eb6b133dd14051eecdcaea9ceecb3694772
sha256
e92f8dcd59759dbb265b92932975b95b9c3a14abf120d3da47af5ecc3deb507f
sha512
66aae6e8942b839692726d83911631fa613a66428c49a29509a53c98226e70f8ff4ec59cedc41e97635798d5a7228ef3a4e96b9bc48f7170cdad478026778481
ripemd-160
b1d8bfc451555cec48ceea9a2e503520a6151872
Diameter
574442854
Circumference
1804665450.0336
Area
2.5916929290812E+17
Volume
9.9251965524867E+25
Surface area
1.0366771716325E+18
Circumference
1804665450.0336
Perimeter
1148885708
Area
82496148127916329
Diagonal
406192437.46755
Surface area
494976888767497974
Volume
2.3694661387304E+25
Space diagonal
497482104.58644
Perimeter
861664281
Area
3.572187999657E+16
Altitude
248741052.29322
Surface area
3.572187999657E+16
Volume
2.7924426241469E+24
Height
135397479.15585