28006909 is an odd 8-digits composite number following 28006908
and preceding 28006910 . In scientific notation, it is written as 2.8006909 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 24005916 positive integers (up to 28006909) that are relatively prime to 28006909.
28006909 has 4 divisors, whose sum is 32007904
The reverse of 28006909 is 90960082
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million six thousand nine hundred nine
Scientific notation
2.8006909 × 10^7
Engineering notation
2.8006909 × 10^6
Prime Factorization
7 × 4000987
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28006909
Product of the distinct prime numbers
The prime factorization of 28006909 is 7 × 4000987.
Since it has a total of 2 prime factors.
7 , 4 , 67 , 2 , 956 , 427 , 336 , 9144 , 63247 , 70566 , 424656 , 979655 , 1439496 , 4926031 , 35007039 , 40816492 , 408954121 , 764151627 , 2844819520 , 4087485960
n×2
56013818
n×3
84020727
n×4
112027636
n×5
140034545
n÷2
14003454.5
n÷3
9335636.3333333
n÷3
7001727.25
n÷5
5601381.8
n2
784386951734281
n3
2.1968253978009E+22
n4
6.15262890051E+29
n5
1.7231611772735E+37
2 √n
5292.1554209981
3 √n
303.68387107787
4 √n
72.747202152372
5 √n
30.864058684155
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
-28006908
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 28006909 can be divided by 4 positive divisors.
The sum of these divisors (counting 28006909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101010110101100111111101
3
Ternary
1221200220020221
4
Quaternary
1222311213331
5
Quinary
24132210114
6
Senary
2440141341
8
Octal
152654775
10
Decimal
28006909
12
Duodecimal
9467851
16
Hexadecimal
1ab59fd
20
Vigesimal
8f0h59
36
Base36
goa9p
md5
36ad7dc00de2e4bf7c90a93335209637
sha1
05756aadafc09ded3f466677ae8531df53ced5ee
sha256
3e6e4b55989c4010602897b7a724ad8c075d0a1c87b41f4df3b649b6ffd8caa5
sha512
e830ba4909dabee786aa105cb8ad7707443a9df0fc99674185954ce9ce9ccf0f8cd09bd059f7b7633e3851b80ed7f25b5f5dab009fff3c6616c14805a8b5d8f1
ripemd-160
7871aa562ebbd196e076523a583190b17d7e72af
Diameter
56013818
Circumference
175972599.12832
Area
2.4642242851401E+15
Volume
9.2020407079345E+22
Surface area
9.8568971405604E+15
Circumference
175972599.12832
Perimeter
112027636
Area
784386951734281
Diagonal
39607750.547949
Surface area
4706321710405686
Volume
2.1968253978009E+22
Space diagonal
48509389.350958
Perimeter
84020727
Area
3.3964951329946E+14
Altitude
24254694.675479
Surface area
3.3964951329946E+14
Volume
2.5889835597798E+21
Height
13202583.515983