27991091 is an odd 8-digits composite number following 27991090
and preceding 27991092 . In scientific notation, it is written as 2.7991091 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 27734184 positive integers (up to 27991091) that are relatively prime to 27991091.
27991091 has 4 divisors, whose sum is 28248000
The reverse of 27991091 is 19019972
Previous prime number is 109
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 ninety-one
Scientific notation
2.7991091 × 10^7
Engineering notation
2.7991091 × 10^6
Prime Factorization
109 × 256799
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
27991091
Product of the distinct prime numbers
The prime factorization of 27991091 is 109 × 256799.
Since it has a total of 2 prime factors.
8 , 6 , 3 , 79 , 915 , 334 , 1349 , 1801 , 42886 , 60305 , 853601 , 712851 , 3382524 , 9465421 , 10056551 , 5283573 , 602572519 , 911488332 , 6181500822 , 746007457
n×2
55982182
n×3
83973273
n×4
111964364
n×5
139955455
n÷2
13995545.5
n÷3
9330363.6666667
n÷3
6997772.75
n÷5
5598218.2
n2
783501175370281
n3
2.1931052698396E+22
n4
6.1387409180661E+29
n5
1.7183005566301E+37
2 √n
5290.6607337836
3 √n
303.62668785318
4 √n
72.736928267446
5 √n
30.860571558807
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
-27991090
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 27991091 can be divided by 4 positive divisors.
The sum of these divisors (counting 27991091) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101010110001110000110011
3
Ternary
1221200002120002
4
Quaternary
1222301300303
5
Quinary
24131203331
6
Senary
2435540215
8
Octal
152616063
10
Decimal
27991091
12
Duodecimal
945a66b
16
Hexadecimal
1ab1c33
20
Vigesimal
8eiheb
36
Base36
gny2b
md5
15108351e9d8d742fa921dbd35323fb4
sha1
988ace577ccca385ad95edc383e961cfb84d9321
sha256
42594a08296ab4dfaf1dbee223e93f25eacd5617ef2aa256feefbb7136809830
sha512
bcee9cff76b0099b6db23483ecf016957071b49118bf4ea05ba7ff05b98ac1843d0d93312f241a834820add58d26c38454578322eb1fd5c884c99e3f87d0b913
ripemd-160
6106ca5b44dd150887489f02cc5cc4467cff5701
Diameter
55982182
Circumference
175873211.70313
Area
2.4614415366222E+15
Volume
9.1864578723697E+22
Surface area
9.845766146489E+15
Circumference
175873211.70313
Perimeter
111964364
Area
783501175370281
Diagonal
39585380.517819
Surface area
4701007052221686
Volume
2.1931052698396E+22
Space diagonal
48481991.771284
Perimeter
83973273
Area
3.3926596088281E+14
Altitude
24240995.885642
Surface area
3.3926596088281E+14
Volume
2.5845993469326E+21
Height
13195126.839273