27991005 is an odd 8-digits composite number following 27991004
and preceding 27991006 . In scientific notation, it is written as 2.7991005 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 12795552 positive integers (up to 27991005) that are relatively prime to 27991005.
27991005 has 8 divisors, whose sum is 32295232
The reverse of 27991005 is 50019972
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-seven million nine hundred ninety-one thousand five
Scientific notation
2.7991005 × 10^7
Engineering notation
2.7991005 × 10^6
Prime Factorization
105 × 7 × 38083
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
27991005
Product of the distinct prime numbers
The prime factorization of 27991005 is 105 × 7 × 38083.
Since it has a total of 3 prime factors.
2 , 8 , 46 , 74 , 402 , 595 , 7330 , 3251 , 27628 , 73691 , 552445 , 958025 , 4377608 , 7750639 , 73039524 , 5099126 , 891033997 , 564570484 , 228550159 , 5983414718
n×2
55982010
n×3
83973015
n×4
111964020
n×5
139955025
n÷2
13995502.5
n÷3
9330335
n÷3
6997751.25
n÷5
5598201
n2
783496360910025
n3
2.1930850555714E+22
n4
6.1386654755925E+29
n5
1.7182741602064E+37
2 √n
5290.6526062481
3 √n
303.62637689803
4 √n
72.736872398036
5 √n
30.860552595542
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-27991004
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 27991005 can be divided by 8 positive divisors.
The sum of these divisors (counting 27991005) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101010110001101111011101
3
Ternary
1221200002102220
4
Quaternary
1222301233131
5
Quinary
24131203010
6
Senary
2435535553
8
Octal
152615735
10
Decimal
27991005
12
Duodecimal
945a5b9
16
Hexadecimal
1ab1bdd
20
Vigesimal
8eiha5
36
Base36
gnxzx
md5
1d009c897a09920c15ae749d62ccbb07
sha1
6d3001e1c8caa6f887885f1d253f0d5ec1dc6b19
sha256
f2d12ea7014189c6180389cf43d1d659d98d8264ad32d1e409d4a671a386e863
sha512
345d9a0405a904092a44e7ad8d570f6b7d4735e152ed5b4188a2be8a44d85d74501cdae587260799828d887ce00a198f04312d456bd1206cd72969841fd0f05c
ripemd-160
e7471bcb3be82ef0b419ef8713471256b590e6cf
Diameter
55982010
Circumference
175872671.34919
Area
2.4614264115493E+15
Volume
9.186373199041E+22
Surface area
9.8457056461971E+15
Circumference
175872671.34919
Perimeter
111964020
Area
783496360910025
Diagonal
39585258.895453
Surface area
4700978165460150
Volume
2.1930850555714E+22
Space diagonal
48481842.814914
Perimeter
83973015
Area
3.3926387616037E+14
Altitude
24240921.407457
Surface area
3.3926387616037E+14
Volume
2.5845755241891E+21
Height
13195086.298484