21263721 is an odd 8-digits composite number following 21263720
and preceding 21263722 . In scientific notation, it is written as 2.1263721 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 14175812 positive integers (up to 21263721) that are relatively prime to 21263721.
21263721 has 4 divisors, whose sum is 28351632
The reverse of 21263721 is 12736212
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million two hundred sixty-three thousand seven hundred twenty-one
Scientific notation
2.1263721 × 10^7
Engineering notation
2.1263721 × 10^6
Prime Factorization
3 × 7087907
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21263721
Product of the distinct prime numbers
The prime factorization of 21263721 is 3 × 7087907.
Since it has a total of 2 prime factors.
10 , 2 , 31 , 47 , 761 , 365 , 9033 , 6858 , 48048 , 59561 , 125238 , 204494 , 2615312 , 1480728 , 35546995 , 78206026 , 885521203 , 881168212 , 5934816177 , 9018665753
n×2
42527442
n×3
63791163
n×4
85054884
n×5
106318605
n÷2
10631860.5
n÷3
7087907
n÷3
5315930.25
n÷5
4252744.2
n2
452145830765841
n3
9.6143027967181E+21
n4
2.0443585227893E+29
n5
4.3470669252564E+36
2 √n
4611.260239891
3 √n
277.04251542372
4 √n
67.906260682584
5 √n
29.209750881143
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
-21263720
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 21263721 can be divided by 4 positive divisors.
The sum of these divisors (counting 21263721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001000111010101101001
3
Ternary
1111000022100020
4
Quaternary
1101013111221
5
Quinary
20420414341
6
Senary
2035431053
8
Octal
121072551
10
Decimal
21263721
12
Duodecimal
7155489
16
Hexadecimal
1447569
20
Vigesimal
6chj61
36
Base36
cnr6x
md5
05cbba81d129ac4899df8951f38fcc1a
sha1
95402cf23b02d5a14c194fd64110cd9b7628666e
sha256
69443a4f42a3011397f4669f4ad92793af0b81bd82f7536c52ec464927daebbc
sha512
fa12b79381f9711f8db59f3f5b1267740b7ff8c4a12763dbc4455fe5557c57b1148ad01099b0e42c0b432d9d6c7b02f580cecc3c67b309a1a4f6e3e65efa89ef
ripemd-160
5eed51edee81149913a8eb2b2eca71dfb5eb7972
Diameter
42527442
Circumference
133603899.36317
Area
1.4204580202852E+15
Volume
4.0272297380743E+22
Surface area
5.6818320811409E+15
Circumference
133603899.36317
Perimeter
85054884
Area
452145830765841
Diagonal
30071442.624718
Surface area
2712874984595046
Volume
9.6143027967181E+21
Space diagonal
36829845.129969
Perimeter
63791163
Area
1.9578488782922E+14
Altitude
18414922.564985
Surface area
1.9578488782922E+14
Volume
1.1330564506567E+21
Height
10023814.208239