28001806 is an even 8-digits composite number following 28001805
and preceding 28001807 . In scientific notation, it is written as 2.8001806 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 11803680 positive integers (up to 28001806) that are relatively prime to 28001806.
28001806 has 16 divisors, whose sum is 48791520
The reverse of 28001806 is 60810082
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-eight million one thousand eight hundred six
Scientific notation
2.8001806 × 10^7
Engineering notation
2.8001806 × 10^6
Prime Factorization
2 × 7 × 61 × 32789
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28001806
Product of the distinct prime numbers
The prime factorization of 28001806 is 2 × 7 × 61 × 32789.
Since it has a total of 4 prime factors.
9 , 5 , 70 , 99 , 717 , 6 , 5645 , 4868 , 97209 , 47144 , 101748 , 736080 , 7136277 , 9149019 , 91996397 , 32965213 , 575752663 , 345729380 , 9563337097 , 1381895207
n×2
56003612
n×3
84005418
n×4
112007224
n×5
140009030
n÷2
14000903
n÷3
9333935.3333333
n÷3
7000451.5
n÷5
5600361.2
n2
784101139261636
n3
2.1956247985983E+22
n4
6.148145965914E+29
n5
1.7215919059721E+37
2 √n
5291.6732703371
3 √n
303.66542571349
4 √n
72.743888199196
5 √n
30.862933884759
1 , 2 , 7 , 14 , 61 , 122 , 427 , 854 , 32789 , 65578 , 229523 , 459046 , 2000129 , 4000258 , 14000903 , 28001806
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28001805
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28001806 can be divided by 16 positive divisors.
The sum of these divisors (counting 28001806) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101010110100011000001110
3
Ternary
1221200122020221
4
Quaternary
1222310120032
5
Quinary
24132024211
6
Senary
2440101554
8
Octal
152643016
10
Decimal
28001806
12
Duodecimal
94648ba
16
Hexadecimal
1ab460e
20
Vigesimal
8f04a6
36
Base36
go6by
md5
576fde66a829d4999cd8cf0e51350e2b
sha1
addaf850f3f27ff59437cb0d26873a8f598c571f
sha256
83612562cf3cf7d97814c4a4567e029d90dc623b38978f8bcba5ccfec14a1d78
sha512
abb027486ca543ac33335ba02b08d9eba9292b39c5c4df4f15f8d1ddc40034599356f3b9bd4d3d021f44a043884f538141df3d413241aba7bfc41ad8dfb8d640
ripemd-160
7dc9b50ad93224f6fa5a7391cd10c0e50a27131a
Diameter
56003612
Circumference
175940536.03369
Area
2.4633263787757E+15
Volume
9.1970116497548E+22
Surface area
9.853305515103E+15
Circumference
175940536.03369
Perimeter
112007224
Area
784101139261636
Diagonal
39600533.81614
Surface area
4704606835569816
Volume
2.1956247985983E+22
Space diagonal
48500550.695687
Perimeter
84005418
Area
3.3952575286845E+14
Altitude
24250275.347844
Surface area
3.3952575286845E+14
Volume
2.5875686400504E+21
Height
13200177.938713