21091394 is an even 8-digits composite number following 21091393
and preceding 21091395 . In scientific notation, it is written as 2.1091394 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 10537776 positive integers (up to 21091394) that are relatively prime to 21091394.
21091394 has 8 divisors, whose sum is 31660860
The reverse of 21091394 is 49319012
Previous prime number is 6229
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million ninety-one thousand three hundred ninety-four
Scientific notation
2.1091394 × 10^7
Engineering notation
2.1091394 × 10^6
Prime Factorization
2 × 6229 × 1693
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21091394
Product of the distinct prime numbers
The prime factorization of 21091394 is 2 × 6229 × 1693.
Since it has a total of 3 prime factors.
5 , 6 , 96 , 10 , 400 , 68 , 338 , 241 , 38868 , 19142 , 264588 , 252930 , 1236497 , 4595599 , 81762891 , 82115050 , 669898824 , 235555167 , 9621145227 , 210798369
n×2
42182788
n×3
63274182
n×4
84365576
n×5
105456970
n÷2
10545697
n÷3
7030464.6666667
n÷3
5272848.5
n÷5
4218278.8
n2
444846900863236
n3
9.3824412557855E+21
n4
1.9788876520763E+29
n5
4.1737499151675E+36
2 √n
4592.5367717635
3 √n
276.29207510751
4 √n
67.768257848077
5 √n
29.16225189356
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
-21091393
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 21091394 can be divided by 8 positive divisors.
The sum of these divisors (counting 21091394) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011101010001000010
3
Ternary
1110200112221202
4
Quaternary
1100131101002
5
Quinary
20344411034
6
Senary
2032021202
8
Octal
120352102
10
Decimal
21091394
12
Duodecimal
7091802
16
Hexadecimal
141d442
20
Vigesimal
6bg89e
36
Base36
ck282
md5
4df6db9021504d67a99669b0473ac7be
sha1
e81c32d2dd9fac5e8de1cadd82893c50d89d0948
sha256
8294618712c5453455346fff62bbbe5f913c3fa8363e1df0ea5642de202e72ae
sha512
c983451b2b4dfc9001803d3b43ee8384b204d05bf2296aa504dd73cd64e854b4ed2e77fcb6773b8770655233b5610270fb978a00bd4da7ca66063df60c4436ef
ripemd-160
2c3682e019694a7f87efac1e079f4c818175a595
Diameter
42182788
Circumference
132521136.88874
Area
1.3975277557241E+15
Volume
3.9301078029218E+22
Surface area
5.5901110228965E+15
Circumference
132521136.88874
Perimeter
84365576
Area
444846900863236
Diagonal
29827735.444155
Surface area
2669081405179416
Volume
9.3824412557855E+21
Space diagonal
36531366.010453
Perimeter
63274182
Area
1.9262435847117E+14
Altitude
18265683.005227
Surface area
1.9262435847117E+14
Volume
1.1057313060084E+21
Height
9942578.4813848