21091382 is an even 8-digits composite number following 21091381
and preceding 21091383 . In scientific notation, it is written as 2.1091382 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 9734472 positive integers (up to 21091382) that are relatively prime to 21091382.
21091382 has 8 divisors, whose sum is 34070736
The reverse of 21091382 is 28319012
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million ninety-one thousand three hundred eighty-two
Scientific notation
2.1091382 × 10^7
Engineering notation
2.1091382 × 10^6
Prime Factorization
2 × 13 × 811207
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21091382
Product of the distinct prime numbers
The prime factorization of 21091382 is 2 × 13 × 811207.
Since it has a total of 3 prime factors.
7 , 10 , 41 , 27 , 737 , 209 , 7325 , 7655 , 66895 , 3042 , 208420 , 595776 , 5713310 , 9023038 , 58272054 , 71231189 , 179311597 , 417625823 , 653147849 , 8635443386
n×2
42182764
n×3
63274146
n×4
84365528
n×5
105456910
n÷2
10545691
n÷3
7030460.6666667
n÷3
5272845.5
n÷5
4218276.4
n2
444846394669924
n3
9.3824252413061E+21
n4
1.9788831485083E+29
n5
4.1737380418551E+36
2 √n
4592.5354652958
3 √n
276.29202270848
4 √n
67.768248208847
5 √n
29.162248575172
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
-21091381
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 21091382 can be divided by 8 positive divisors.
The sum of these divisors (counting 21091382) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011101010000110110
3
Ternary
1110200112221022
4
Quaternary
1100131100312
5
Quinary
20344411012
6
Senary
2032021142
8
Octal
120352066
10
Decimal
21091382
12
Duodecimal
70917b2
16
Hexadecimal
141d436
20
Vigesimal
6bg892
36
Base36
ck27q
md5
e10366bef4152b7bfa2184388ca644e0
sha1
8901ea521c3b482243c2ef0b67caa7a67e818898
sha256
277ff9b7e87cef74a824e6bc4f6629c8db58b46af8a1e5ec254d5063fc1176b5
sha512
e691c19a5061a03d7d2569b55bb7dfdea90574faa85f5d8b147dc86c961ec22fb6968a62425a1fd0281d7e4e1f4177441162f7917230cb0af89d814766401ff9
ripemd-160
0cc6df694c0e5a579671bf75246e2f969a7d210f
Diameter
42182764
Circumference
132521061.49051
Area
1.3975261654709E+15
Volume
3.9301010947924E+22
Surface area
5.5901046618838E+15
Circumference
132521061.49051
Perimeter
84365528
Area
444846394669924
Diagonal
29827718.473592
Surface area
2669078368019544
Volume
9.3824252413061E+21
Space diagonal
36531345.225844
Perimeter
63274146
Area
1.9262413928304E+14
Altitude
18265672.612922
Surface area
1.9262413928304E+14
Volume
1.1057294186839E+21
Height
9942572.8245306