21091636 is an even 8-digits composite number following 21091635
and preceding 21091637 . In scientific notation, it is written as 2.1091636 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 6 positive divisors.
There are 10545816 positive integers (up to 21091636) that are relatively prime to 21091636.
21091636 has 6 divisors, whose sum is 36910370
The reverse of 21091636 is 63619012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million ninety-one thousand six hundred thirty-six
Scientific notation
2.1091636 × 10^7
Engineering notation
2.1091636 × 10^6
Prime Factorization
2 × 2 × 5272909
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10545818
Product of the distinct prime numbers
The prime factorization of 21091636 is 2 × 2 × 5272909.
Since it has a total of 3 prime factors.
6 , 9 , 39 , 93 , 256 , 332 , 6560 , 8554 , 8455 , 19011 , 386029 , 466286 , 6036215 , 1285568 , 14581447 , 78702422 , 52219000 , 382260532 , 4813350405 , 5348321722
n×2
42183272
n×3
63274908
n×4
84366544
n×5
105458180
n÷2
10545818
n÷3
7030545.3333333
n÷3
5272909
n÷5
4218327.2
n2
444857109156496
n3
9.3827642183411E+21
n4
1.9789784756707E+29
n5
4.1739893660682E+36
2 √n
4592.5631187824
3 √n
276.29313181696
4 √n
67.768452238356
5 √n
29.162318814054
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21091635
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21091636 can be divided by 6 positive divisors.
The sum of these divisors (counting 21091636) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000011101010100110100
3
Ternary
1110200120021201
4
Quaternary
1100131110310
5
Quinary
20344413021
6
Senary
2032022244
8
Octal
120352464
10
Decimal
21091636
12
Duodecimal
7091984
16
Hexadecimal
141d534
20
Vigesimal
6bg91g
36
Base36
ck2es
md5
015fc46859592513b6574a69491193a1
sha1
b425f9fe4f0e8997ad4466bb8f239a5bb4b99991
sha256
613742782593185dec29058390cbef2a9436027908ad6fd607300792ed080489
sha512
2cdc46fd92f71f6f2f751370ed8716060e24f3acce90046265aba8678ba0495f307183bf90e4d8befc0da7182c15f831af6d21f603ac6ad502e24e70537c6d51
ripemd-160
43c04ef7285d8a8fe49d9b312f9cb791da1fc186
Diameter
42183272
Circumference
132522657.41958
Area
1.3975598260232E+15
Volume
3.9302430851607E+22
Surface area
5.590239304093E+15
Circumference
132522657.41958
Perimeter
84366544
Area
444857109156496
Diagonal
29828077.683837
Surface area
2669142654938976
Volume
9.3827642183411E+21
Space diagonal
36531785.166749
Perimeter
63274908
Area
1.9262877879182E+14
Altitude
18265892.583374
Surface area
1.9262877879182E+14
Volume
1.1057693675106E+21
Height
9942692.5612789