28007913 is an odd 8-digits composite number following 28007912
and preceding 28007914 . In scientific notation, it is written as 2.8007913 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 18671940 positive integers (up to 28007913) that are relatively prime to 28007913.
28007913 has 4 divisors, whose sum is 37343888
The reverse of 28007913 is 31970082
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-eight million seven thousand nine hundred thirteen
Scientific notation
2.8007913 × 10^7
Engineering notation
2.8007913 × 10^6
Prime Factorization
3 × 9335971
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28007913
Product of the distinct prime numbers
The prime factorization of 28007913 is 3 × 9335971.
Since it has a total of 2 prime factors.
4 , 8 , 9 , 56 , 818 , 363 , 3928 , 8156 , 25181 , 5549 , 789307 , 329519 , 253247 , 5155414 , 16076064 , 9683028 , 229908921 , 123613517 , 4335915025 , 1401310880
n×2
56015826
n×3
84023739
n×4
112031652
n×5
140039565
n÷2
14003956.5
n÷3
9335971
n÷3
7001978.25
n÷5
5601582.6
n2
784443190615569
n3
2.1970616636203E+22
n4
6.1535111930313E+29
n5
1.7234700613895E+37
2 √n
5292.2502775285
3 √n
303.68749988441
4 √n
72.747854109441
5 √n
30.864279965772
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
-28007912
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 28007913 can be divided by 4 positive divisors.
The sum of these divisors (counting 28007913) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101010110101110111101001
3
Ternary
1221200221122010
4
Quaternary
1222311313221
5
Quinary
24132223123
6
Senary
2440150133
8
Octal
152656751
10
Decimal
28007913
12
Duodecimal
9468349
16
Hexadecimal
1ab5de9
20
Vigesimal
8f0jfd
36
Base36
gob1l
md5
5e8504593d76c7855165331906656c62
sha1
0e206ce8fc5dd6ac9abdf0a33b0bbffcff6a1a28
sha256
512ca4816a010effd5309b0efd8bb84179f363de6dacd086797ef4fc10f41b83
sha512
2eae3ffc1b67b2fac44a59cdf5f205eebd53ad6673ddf7de3cfa30468753c5c8fe30c594658929da50c512b3e57a2baac4404e78089fb3ddcd719b7d25901151
ripemd-160
63e8b31d621c76f992cab905ae31174d8d9e00d0
Diameter
56015826
Circumference
175978907.44636
Area
2.4644009647964E+15
Volume
9.2030303758845E+22
Surface area
9.8576038591856E+15
Circumference
175978907.44636
Perimeter
112031652
Area
784443190615569
Diagonal
39609170.418366
Surface area
4706659143693414
Volume
2.1970616636203E+22
Space diagonal
48511128.329969
Perimeter
84023739
Area
3.396738654494E+14
Altitude
24255564.164984
Surface area
3.396738654494E+14
Volume
2.5892620017182E+21
Height
13203056.806122