27991505 is an odd 8-digits composite number following 27991504
and preceding 27991506 . In scientific notation, it is written as 2.7991505 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 22393200 positive integers (up to 27991505) that are relatively prime to 27991505.
27991505 has 4 divisors, whose sum is 33589812
The reverse of 27991505 is 50519972
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-seven million nine hundred ninety-one thousand five hundred five
Scientific notation
2.7991505 × 10^7
Engineering notation
2.7991505 × 10^6
Prime Factorization
5 × 5598301
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
27991505
Product of the distinct prime numbers
The prime factorization of 27991505 is 5 × 5598301.
Since it has a total of 2 prime factors.
1 , 8 , 34 , 22 , 241 , 224 , 9553 , 6190 , 754 , 30103 , 807489 , 326978 , 8060826 , 3219164 , 48786403 , 12759539 , 445141734 , 10268699 , 1877324479 , 9354535365
n×2
55983010
n×3
83974515
n×4
111966020
n×5
139957525
n÷2
13995752.5
n÷3
9330501.6666667
n÷3
6997876.25
n÷5
5598301
n2
783524352165025
n3
2.1932025821249E+22
n4
6.1391041043562E+29
n5
1.7184276323261E+37
2 √n
5290.6998591869
3 √n
303.62818476791
4 √n
72.737197218389
5 √n
30.860662846431
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
-27991504
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 27991505 can be divided by 4 positive divisors.
The sum of these divisors (counting 27991505) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101010110001110111010001
3
Ternary
1221200010010102
4
Quaternary
1222301313101
5
Quinary
24131212010
6
Senary
2435542145
8
Octal
152616721
10
Decimal
27991505
12
Duodecimal
945a955
16
Hexadecimal
1ab1dd1
20
Vigesimal
8eiif5
36
Base36
gnydt
md5
b8456eeea55f5a7edd4d444bba34021c
sha1
38ed7729e50a981a39a9f067144bee78fbb0afea
sha256
cc82bded385f9a4d4bc7c93f7e0f4d2956700dfe33eda82bf8970fb1d81e2ca5
sha512
b93ffc95fc19a20049073a6502da924917d9a73ac99ffe035a4fc3f35559c9d381595192fd105f53f2312ea60b10d75fab734f1824daa5e0702625ec44c3a56f
ripemd-160
1beb386691d806469efb3bdfa8f3868cfad1438d
Diameter
55983010
Circumference
175875812.94184
Area
2.4615143486703E+15
Volume
9.186865493117E+22
Surface area
9.8460573946814E+15
Circumference
175875812.94184
Perimeter
111966020
Area
783524352165025
Diagonal
39585966.002234
Surface area
4701146112990150
Volume
2.1932025821249E+22
Space diagonal
48482708.840318
Perimeter
83974515
Area
3.3927599672933E+14
Altitude
24241354.420159
Surface area
3.3927599672933E+14
Volume
2.5847140305606E+21
Height
13195322.000745