21091370 is an even 8-digits composite number following 21091369
and preceding 21091371 . In scientific notation, it is written as 2.1091370 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 8424384 positive integers (up to 21091370) that are relatively prime to 21091370.
21091370 has 16 divisors, whose sum is 38019240
The reverse of 21091370 is 07319012
Previous prime number is 1069
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million ninety-one thousand three hundred seventy
Scientific notation
2.1091370 × 10^7
Engineering notation
2.1091370 × 10^6
Prime Factorization
2 × 5 × 1069 × 1973
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21091370
Product of the distinct prime numbers
The prime factorization of 21091370 is 2 × 5 × 1069 × 1973.
Since it has a total of 4 prime factors.
9 , 9 , 44 , 9 , 411 , 271 , 88 , 7799 , 81002 , 72869 , 82017 , 66208 , 7537405 , 5592349 , 14889256 , 41846299 , 792488453 , 661095158 , 4472562144 , 9967091168
n×2
42182740
n×3
63274110
n×4
84365480
n×5
105456850
n÷2
10545685
n÷3
7030456.6666667
n÷3
5272842.5
n÷5
4218274
n2
444845888476900
n3
9.382409226845E+21
n4
1.978878644948E+29
n5
4.1737261685697E+36
2 √n
4592.5341588278
3 √n
276.29197030944
4 √n
67.768238569612
5 √n
29.162245256783
1 , 2 , 5 , 10 , 1069 , 1973 , 2138 , 3946 , 5345 , 9865 , 10690 , 19730 , 2109137 , 4218274 , 10545685 , 21091370
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
-21091369
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 21091370 can be divided by 16 positive divisors.
The sum of these divisors (counting 21091370) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011101010000101010
3
Ternary
1110200112220212
4
Quaternary
1100131100222
5
Quinary
20344410440
6
Senary
2032021122
8
Octal
120352052
10
Decimal
21091370
12
Duodecimal
70917a2
16
Hexadecimal
141d42a
20
Vigesimal
6bg88a
36
Base36
ck27e
md5
334396a850be3eb0021342d4b861cbcb
sha1
f357321c483a280c69bc289a5b6013c2a7732695
sha256
af156f666a9b29d0ac4aad7da95c17931b7236d1f81805b23db42aff48743e30
sha512
ce0dcac562f0a4eed38252bc3e83a13ffaed3219524e49779083550efb90323187f40aeba4c4b97c91c2a1c863cae24e14890ed292f47f6f6604eaf9ccc66e04
ripemd-160
4771a7727e313429fc42b4fa63e04d178670bd5d
Diameter
42182740
Circumference
132520986.09229
Area
1.3975245752187E+15
Volume
3.9300943866706E+22
Surface area
5.5900983008746E+15
Circumference
132520986.09229
Perimeter
84365480
Area
444845888476900
Diagonal
29827701.503029
Surface area
2669075330861400
Volume
9.382409226845E+21
Space diagonal
36531324.441234
Perimeter
63274110
Area
1.9262392009503E+14
Altitude
18265662.220617
Surface area
1.9262392009503E+14
Volume
1.1057275313616E+21
Height
9942567.1676763