27993905 is an odd 8-digits composite number following 27993904
and preceding 27993906 . In scientific notation, it is written as 2.7993905 × 10^7.
The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors.
There are 21735552 positive integers (up to 27993905) that are relatively prime to 27993905.
27993905 has 16 divisors, whose sum is 34594560
The reverse of 27993905 is 50939972
Previous prime number is 857
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-seven million nine hundred ninety-three thousand nine hundred five
Scientific notation
2.7993905 × 10^7
Engineering notation
2.7993905 × 10^6
Prime Factorization
5 × 47 × 857 × 139
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
27993905
Product of the distinct prime numbers
The prime factorization of 27993905 is 5 × 47 × 857 × 139.
Since it has a total of 4 prime factors.
1 , 4 , 64 , 56 , 292 , 284 , 1633 , 944 , 22828 , 27304 , 900948 , 662189 , 6443646 , 7757602 , 49139081 , 5327894 , 887292080 , 6291579 , 7233095091 , 9235767338
n×2
55987810
n×3
83981715
n×4
111975620
n×5
139969525
n÷2
13996952.5
n÷3
9331301.6666667
n÷3
6998476.25
n÷5
5598781
n2
783658717149025
n3
2.1937667680292E+22
n4
6.1412098496366E+29
n5
1.7191644511579E+37
2 √n
5290.9266674185
3 √n
303.63686224366
4 √n
72.738756295516
5 √n
30.861192028773
1 , 5 , 47 , 139 , 235 , 695 , 857 , 4285 , 6533 , 32665 , 40279 , 119123 , 201395 , 595615 , 5598781 , 27993905
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
-27993904
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 27993905 can be divided by 16 positive divisors.
The sum of these divisors (counting 27993905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101010110010011100110001
3
Ternary
1221200020102022
4
Quaternary
1222302130301
5
Quinary
24131301110
6
Senary
2440001225
8
Octal
152623461
10
Decimal
27993905
12
Duodecimal
9460215
16
Hexadecimal
1ab2731
20
Vigesimal
8ej4f5
36
Base36
go08h
md5
78b832fed52be60171a0178cda10d976
sha1
da61fb52db7bd5f4836b7f76f278245fa6948c35
sha256
6f14b8a0b0078bd82a1b6c1bb2be7887997b2b451b60dbb28be4a7996155b3fb
sha512
0fa724d75f47ba6745fcacf132617656ef6a8f1da367d4ca1d563b030500bc694021f28132a3b6a6b2fefa3538aa4f82a0ec07ab20457db0f4b3473587289d23
ripemd-160
ea56ed1d2d6e9a6ce3764d7066c4b807ea442adb
Diameter
55987810
Circumference
175890892.58658
Area
2.461936468717E+15
Volume
9.1892287495065E+22
Surface area
9.8477458748679E+15
Circumference
175890892.58658
Perimeter
111975620
Area
783658717149025
Diagonal
39589360.114784
Surface area
4701952302894150
Volume
2.1937667680292E+22
Space diagonal
48486865.762256
Perimeter
83981715
Area
3.3933417847409E+14
Altitude
24243432.881128
Surface area
3.3933417847409E+14
Volume
2.5853789300252E+21
Height
13196453.371595