27806987 is an odd 8-digits composite number following 27806986
and preceding 27806988 . In scientific notation, it is written as 2.7806987 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 25667976 positive integers (up to 27806987) that are relatively prime to 27806987.
27806987 has 4 divisors, whose sum is 29946000
The reverse of 27806987 is 78960872
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-seven million eight hundred six thousand nine hundred eighty-seven
Scientific notation
2.7806987 × 10^7
Engineering notation
2.7806987 × 10^6
Prime Factorization
13 × 2138999
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
27806987
Product of the distinct prime numbers
The prime factorization of 27806987 is 13 × 2138999.
Since it has a total of 2 prime factors.
2 , 7 , 41 , 30 , 619 , 394 , 509 , 9919 , 28568 , 18683 , 754550 , 122235 , 5876100 , 3033591 , 59098001 , 14761304 , 472625316 , 201321868 , 6716440199 , 233197193
n×2
55613974
n×3
83420961
n×4
111227948
n×5
139034935
n÷2
13903493.5
n÷3
9268995.6666667
n÷3
6951746.75
n÷5
5561397.4
n2
773228526018169
n3
2.1501155571016E+22
n4
5.9788235344823E+29
n5
1.6625306829864E+37
2 √n
5273.2330690005
3 √n
302.95954831093
4 √n
72.617030158224
5 √n
30.81986888311
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
-27806986
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 27806987 can be divided by 4 positive divisors.
The sum of these divisors (counting 27806987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101010000100110100001011
3
Ternary
1221022202000102
4
Quaternary
1222010310023
5
Quinary
24104310422
6
Senary
2432000015
8
Octal
152046413
10
Decimal
27806987
12
Duodecimal
939000b
16
Hexadecimal
1a84d0b
20
Vigesimal
8dfh97
36
Base36
gk00b
md5
7fb93c3ee3e0ff928f97bbe17db016fa
sha1
d4b129f8fc389806f5570369ffbb59434588d211
sha256
3ef22061c994207e35e264d93e8bc17614be23d8adc3fe2cebbe36bd16c1eae5
sha512
53dceb7788ec4ac8abae83e544dcdd3bf3577114cdeaa031b1edc48f8715f9ab609fc8ed49b90e455ecc738274638e5f9679b35a823d2860d83d607fece4e6e2
ripemd-160
c9fc2869ff43bdcaea05970488dc27733dd22a37
Diameter
55613974
Circumference
174716452.15533
Area
2.4291690568847E+15
Volume
9.0063829847462E+22
Surface area
9.716676227539E+15
Circumference
174716452.15533
Perimeter
111227948
Area
773228526018169
Diagonal
39325018.144132
Surface area
4639371156109014
Volume
2.1501155571016E+22
Space diagonal
48163114.289407
Perimeter
83420961
Area
3.3481777323127E+14
Altitude
24081557.144704
Surface area
3.3481777323127E+14
Volume
2.5339354846021E+21
Height
13108339.381377