27991906 is an even 8-digits composite number following 27991905
and preceding 27991907 . In scientific notation, it is written as 2.7991906 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 13617648 positive integers (up to 27991906) that are relatively prime to 27991906.
27991906 has 8 divisors, whose sum is 43122780
The reverse of 27991906 is 60919972
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-seven million nine hundred ninety-one thousand nine hundred six
Scientific notation
2.7991906 × 10^7
Engineering notation
2.7991906 × 10^6
Prime Factorization
2 × 37 × 378269
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
27991906
Product of the distinct prime numbers
The prime factorization of 27991906 is 2 × 37 × 378269.
Since it has a total of 3 prime factors.
3 , 5 , 1 , 57 , 553 , 705 , 3224 , 5481 , 81438 , 26883 , 743836 , 619708 , 7900432 , 433581 , 18551502 , 99223104 , 993431038 , 545436007 , 891693812 , 6320105699
n×2
55983812
n×3
83975718
n×4
111967624
n×5
139959530
n÷2
13995953
n÷3
9330635.3333333
n÷3
6997976.5
n÷5
5598381.2
n2
783546801512836
n3
2.1932968414548E+22
n4
6.13945590161E+29
n5
1.7185507248901E+37
2 √n
5290.7377557388
3 √n
303.629634664
4 √n
72.737457721169
5 √n
30.860751266507
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
-27991905
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 27991906 can be divided by 8 positive divisors.
The sum of these divisors (counting 27991906) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101010110001111101100010
3
Ternary
1221200010200021
4
Quaternary
1222301331202
5
Quinary
24131220111
6
Senary
2435544054
8
Octal
152617542
10
Decimal
27991906
12
Duodecimal
945b02a
16
Hexadecimal
1ab1f62
20
Vigesimal
8eijf6
36
Base36
gnyoy
md5
2ed8cdf85982ec47bc8dcaa52c562441
sha1
b4e5338ed681c1959ea122e3488fb6d5a5e4cd1f
sha256
77c3d77ed0d82296da45c55156408e5c438035179ab6af5fd1047035decedc45
sha512
0420ed63e6131d02fb972b15d8ef2c397768cecd80e05b44664b8c5c4af7f233de5d13c3e9a9e8eb33f1ab46ca0431e03ddf35140c57ae9ffb594ba2d9237783
ripemd-160
aa6cedc056d9923a613e57c2655b53203f8e2f15
Diameter
55983812
Circumference
175878332.49915
Area
2.4615848753765E+15
Volume
9.1872603256748E+22
Surface area
9.846339501506E+15
Circumference
175878332.49915
Perimeter
111967624
Area
783546801512836
Diagonal
39586533.101873
Surface area
4701280809077016
Volume
2.1932968414548E+22
Space diagonal
48483403.392692
Perimeter
83975718
Area
3.3928571758208E+14
Altitude
24241701.696346
Surface area
3.3928571758208E+14
Volume
2.5848251162462E+21
Height
13195511.033958