28697913 is an odd 8-digits composite number following 28697912
and preceding 28697914 . In scientific notation, it is written as 2.8697913 × 10^7.
The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors.
There are 19131936 positive integers (up to 28697913) that are relatively prime to 28697913.
28697913 has 4 divisors, whose sum is 31886580
The reverse of 28697913 is 31979682
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-eight million six hundred ninety-seven thousand nine hundred thirteen
Scientific notation
2.8697913 × 10^7
Engineering notation
2.8697913 × 10^6
Prime Factorization
9 × 3188657
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28697913
Product of the distinct prime numbers
The prime factorization of 28697913 is 9 × 3188657.
Since it has a total of 2 prime factors.
7 , 3 , 80 , 73 , 159 , 571 , 975 , 8850 , 25934 , 49664 , 863770 , 485081 , 2623084 , 3274619 , 99429870 , 54758508 , 513046052 , 200791623 , 5141009978 , 2892848787
n×2
57395826
n×3
86093739
n×4
114791652
n×5
143489565
n÷2
14348956.5
n÷3
9565971
n÷3
7174478.25
n÷5
5739582.6
n2
823570210555569
n3
2.3634746251915E+22
n4
6.7826789171454E+29
n5
1.9464872947117E+37
2 √n
5357.0433076465
3 √n
306.16116718246
4 √n
73.191825415455
5 √n
31.014876983529
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
-28697912
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 28697913 can be divided by 4 positive divisors.
The sum of these divisors (counting 28697913) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101011110010100111001
3
Ternary
2000000000010200
4
Quaternary
1231132110321
5
Quinary
24321313123
6
Senary
2503032413
8
Octal
155362471
10
Decimal
28697913
12
Duodecimal
973b709
16
Hexadecimal
1b5e539
20
Vigesimal
8j74fd
36
Base36
h33g9
md5
2587584397d9f482c4243bd13323247a
sha1
96dcccc568dea8d376e5f7110a6a5a0b27456a74
sha256
a26c07b1f9a1e22d98c806e85b639c63f4adabea79ba6f89e7fff0d2e0ac8b36
sha512
c5bbd2ead5a4f661a87829842e321710076c32ce670e5cea31c2a66ae7a2fc0ac8d7d722cd11879a9368afda0b30639b564b8843295d655356d201dcb42adbe7
ripemd-160
105b6adf5b052e8bbf2f7da8354c716be2dc130f
Diameter
57395826
Circumference
180314305.30832
Area
2.5873221231968E+15
Volume
9.9000993592635E+22
Surface area
1.0349288492787E+16
Circumference
180314305.30832
Perimeter
114791652
Area
823570210555569
Diagonal
40584977.776403
Surface area
4941421263333414
Volume
2.3634746251915E+22
Space diagonal
49706243.387191
Perimeter
86093739
Area
3.5661636207061E+14
Altitude
24853121.693596
Surface area
3.5661636207061E+14
Volume
2.7853815577255E+21
Height
13528325.925468