21091646 is an even 8-digits composite number following 21091645
and preceding 21091647 . In scientific notation, it is written as 2.1091646 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 10545822 positive integers (up to 21091646) that are relatively prime to 21091646.
21091646 has 4 divisors, whose sum is 31637472
The reverse of 21091646 is 64619012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million ninety-one thousand six hundred forty-six
Scientific notation
2.1091646 × 10^7
Engineering notation
2.1091646 × 10^6
Prime Factorization
2 × 10545823
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21091646
Product of the distinct prime numbers
The prime factorization of 21091646 is 2 × 10545823.
Since it has a total of 2 prime factors.
8 , 5 , 11 , 35 , 171 , 692 , 2220 , 852 , 93903 , 87962 , 117298 , 151723 , 4011291 , 175583 , 14057883 , 11001706 , 717441541 , 587179712 , 9514689286 , 2801216139
n×2
42183292
n×3
63274938
n×4
84366584
n×5
105458230
n÷2
10545823
n÷3
7030548.6666667
n÷3
5272911.5
n÷5
4218329.2
n2
444857530989316
n3
9.3827775640607E+21
n4
1.9789822287791E+29
n5
4.17399926097E+36
2 √n
4592.5642074989
3 √n
276.29317548247
4 √n
67.768460270976
5 √n
29.162321579351
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
-21091645
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 21091646 can be divided by 4 positive divisors.
The sum of these divisors (counting 21091646) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011101010100111110
3
Ternary
1110200120022002
4
Quaternary
1100131110332
5
Quinary
20344413041
6
Senary
2032022302
8
Octal
120352476
10
Decimal
21091646
12
Duodecimal
7091992
16
Hexadecimal
141d53e
20
Vigesimal
6bg926
36
Base36
ck2f2
md5
5ea90abaecf91c8944fd73d67e1cc859
sha1
8ce6d2a6b4d8af5a05be7d629f7a9b92547708d2
sha256
30e120cf16a706c53beecbe3be6e04d43cc75c682147fb3ccbff7e7e181c7c71
sha512
307c8a129818b503fb6dc47e794d8186075fa4ae269fa1d13a5ba95f3b2137e452d2a17e866dd6349f5b4deddb55f53897bc63048bce61d83f91348d19241471
ripemd-160
83dbbed8102ff8df85f380948d9a57059de96f08
Diameter
42183292
Circumference
132522720.25143
Area
1.3975611512501E+15
Volume
3.9302486754027E+22
Surface area
5.5902446050005E+15
Circumference
132522720.25143
Perimeter
84366584
Area
444857530989316
Diagonal
29828091.825972
Surface area
2669145185935896
Volume
9.3827775640607E+21
Space diagonal
36531802.487257
Perimeter
63274938
Area
1.9262896145079E+14
Altitude
18265901.243628
Surface area
1.9262896145079E+14
Volume
1.1057709403187E+21
Height
9942697.2753241