28771231 is an odd 8-digits composite number following 28771230
and preceding 28771232 . In scientific notation, it is written as 2.8771231 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 28760464 positive integers (up to 28771231) that are relatively prime to 28771231.
28771231 has 4 divisors, whose sum is 28782000
The reverse of 28771231 is 13217782
Previous prime number is 4919
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-eight million seven hundred seventy-one thousand two hundred thirty-one
Scientific notation
2.8771231 × 10^7
Engineering notation
2.8771231 × 10^6
Prime Factorization
4919 × 5849
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28771231
Product of the distinct prime numbers
The prime factorization of 28771231 is 4919 × 5849.
Since it has a total of 2 prime factors.
1 , 3 , 42 , 50 , 763 , 869 , 8356 , 7379 , 93155 , 70609 , 224269 , 241543 , 4100107 , 9048246 , 47480308 , 13904589 , 880815019 , 806323332 , 2974032293 , 2238110487
n×2
57542462
n×3
86313693
n×4
115084924
n×5
143856155
n÷2
14385615.5
n÷3
9590410.3333333
n÷3
7192807.75
n÷5
5754246.2
n2
827783733255361
n3
2.3816357007532E+22
n4
6.8522590904218E+29
n5
1.9714792916238E+37
2 √n
5363.8820829694
3 √n
306.42167434224
4 √n
73.238528678349
5 √n
31.030708298472
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
-28771230
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 28771231 can be divided by 4 positive divisors.
The sum of these divisors (counting 28771231) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101110000001110011111
3
Ternary
2000010201201011
4
Quaternary
1231300032133
5
Quinary
24331134411
6
Senary
2504400051
8
Octal
155601637
10
Decimal
28771231
12
Duodecimal
9776027
16
Hexadecimal
1b7039f
20
Vigesimal
8jg81b
36
Base36
h4o0v
md5
d07eba372ce8e7ec313019b540cbe7b0
sha1
bdc024c70f2b1abe9b40b08e1fd93038bb163a51
sha256
ccbd529eccab7059f6b9aacdb4fe94e80949f4cc3d6096fbe4f2e4936f86cf99
sha512
4c075b4ac8898222a5795092849c7df4841ca7aeea325e3e93924918fa5da664db2d055f95dd4d4adc1caf0589f69fcb2e5a1796fc6b4624d81f845527313fb7
ripemd-160
7d07bcc666e139d56389713774e09c3f4cb86586
Diameter
57542462
Circumference
180774975.88867
Area
2.6005592951562E+15
Volume
9.9761722946847E+22
Surface area
1.0402237180625E+16
Circumference
180774975.88867
Perimeter
115084924
Area
827783733255361
Diagonal
40688665.086369
Surface area
4966702399532166
Volume
2.3816357007532E+22
Space diagonal
49833233.888301
Perimeter
86313693
Area
3.5844087091933E+14
Altitude
24916616.94415
Surface area
3.5844087091933E+14
Volume
2.806784590531E+21
Height
13562888.362123