28711997 is an odd 8-digits composite number following 28711996
and preceding 28711998 . In scientific notation, it is written as 2.8711997 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 26679744 positive integers (up to 28711997) that are relatively prime to 28711997.
28711997 has 8 divisors, whose sum is 30787200
The reverse of 28711997 is 79911782
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-eight million seven hundred eleven thousand nine hundred ninety-seven
Scientific notation
2.8711997 × 10^7
Engineering notation
2.8711997 × 10^6
Prime Factorization
17 × 79 × 21379
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28711997
Product of the distinct prime numbers
The prime factorization of 28711997 is 17 × 79 × 21379.
Since it has a total of 3 prime factors.
7 , 3 , 87 , 25 , 393 , 268 , 2792 , 9615 , 25714 , 30665 , 842372 , 34268 , 8093437 , 5261889 , 88996621 , 29309015 , 734307873 , 940045950 , 4004339494 , 3832774715
n×2
57423994
n×3
86135991
n×4
114847988
n×5
143559985
n÷2
14355998.5
n÷3
9570665.6666667
n÷3
7177999.25
n÷5
5742399.4
n2
824378771728009
n3
2.3669560820718E+22
n4
6.7960035927578E+29
n5
1.9512683476725E+37
2 √n
5358.3576774978
3 √n
306.21124363087
4 √n
73.200803803632
5 √n
31.017920604179
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28711996
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28711997 can be divided by 8 positive divisors.
The sum of these divisors (counting 28711997) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101100001110000111101
3
Ternary
2000000201110022
4
Quaternary
1231201300331
5
Quinary
24322240442
6
Senary
2503221525
8
Octal
155416075
10
Decimal
28711997
12
Duodecimal
97478a5
16
Hexadecimal
1b61c3d
20
Vigesimal
8j8jjh
36
Base36
h3ebh
md5
cbf44797a97a18180d7bc94cbfb60650
sha1
26a0830cbfbd72301ecd9d374faf77d4ab5ace82
sha256
82892e85c6b36ad5e5db91d53114e23a9816603f8959f53d74df9598d4cd1b99
sha512
0a70b45c00dff472ce1fbe730b8d046485bb5c05f4b546cf3d3c165f5a8c0cfd5f73eb7b20534d283c15906894086f50a112854b7043f128006ab26797282f58
ripemd-160
2cb63df698d98ba9c6eb901474b6b996191f3e7e
Diameter
57423994
Circumference
180402797.69018
Area
2.5898622930361E+15
Volume
9.914682451742E+22
Surface area
1.0359449172144E+16
Circumference
180402797.69018
Perimeter
114847988
Area
824378771728009
Diagonal
40604895.560216
Surface area
4946272630368054
Volume
2.3669560820718E+22
Space diagonal
49730637.590765
Perimeter
86135991
Area
3.5696647932853E+14
Altitude
24865318.795383
Surface area
3.5696647932853E+14
Volume
2.7894844940062E+21
Height
13534965.186739