28756913 is an odd 8-digits composite number following 28756912
and preceding 28756914 . In scientific notation, it is written as 2.8756913 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 28684800 positive integers (up to 28756913) that are relatively prime to 28756913.
28756913 has 4 divisors, whose sum is 28829028
The reverse of 28756913 is 31965782
Previous prime number is 401
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-eight million seven hundred fifty-six thousand nine hundred thirteen
Scientific notation
2.8756913 × 10^7
Engineering notation
2.8756913 × 10^6
Prime Factorization
401 × 71713
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28756913
Product of the distinct prime numbers
The prime factorization of 28756913 is 401 × 71713.
Since it has a total of 2 prime factors.
5 , 5 , 38 , 27 , 473 , 232 , 628 , 799 , 91464 , 46127 , 521822 , 743685 , 8494371 , 9129577 , 7831490 , 69916151 , 751850678 , 759073782 , 1766284237 , 3882053032
n×2
57513826
n×3
86270739
n×4
115027652
n×5
143784565
n÷2
14378456.5
n÷3
9585637.6666667
n÷3
7189228.25
n÷5
5751382.6
n2
826960045289569
n3
2.3780818076868E+22
n4
6.8386291650533E+29
n5
1.966578639387E+37
2 √n
5362.5472492091
3 √n
306.37083567031
4 √n
73.229415190954
5 √n
31.027619197768
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
-28756912
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 28756913 can be divided by 4 positive divisors.
The sum of these divisors (counting 28756913) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101101100101110110001
3
Ternary
2000010000001212
4
Quaternary
1231230232301
5
Quinary
24330210123
6
Senary
2504205505
8
Octal
155545661
10
Decimal
28756913
12
Duodecimal
9769895
16
Hexadecimal
1b6cbb1
20
Vigesimal
8jec5d
36
Base36
h4cz5
md5
9b894803e9c167e4a502e1d778203ac8
sha1
6071ad9fc3b1cb2199928a98c04d50b1c7e494ed
sha256
13341c82cb715c22d80b71e523422e59e35d8ace91848c8e8049414d058529bd
sha512
2edec05410036be7d55ffe0015c5a248b61c9f274f5b40b392e9f2a392eebc9ed72efd0dc7577252b2d7a4c84c17cd5692c885a418f9539abe1fe6fbf5275ccf
ripemd-160
0c10a78a01973f264637e040f175ada466381d3c
Diameter
57513826
Circumference
180685013.24144
Area
2.597971603094E+15
Volume
9.9612857822193E+22
Surface area
1.0391886412376E+16
Circumference
180685013.24144
Perimeter
115027652
Area
826960045289569
Diagonal
40668416.376583
Surface area
4961760271737414
Volume
2.3780818076868E+22
Space diagonal
49808434.384838
Perimeter
86270739
Area
3.5808420356775E+14
Altitude
24904217.192419
Surface area
3.5808420356775E+14
Volume
2.8025962873862E+21
Height
13556138.792194