21869439 is an odd 8-digits composite number following 21869438
and preceding 21869440 . In scientific notation, it is written as 2.1869439 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 14579624 positive integers (up to 21869439) that are relatively prime to 21869439.
21869439 has 4 divisors, whose sum is 29159256
The reverse of 21869439 is 93496812
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-one million eight hundred sixty-nine thousand four hundred thirty-nine
Scientific notation
2.1869439 × 10^7
Engineering notation
2.1869439 × 10^6
Prime Factorization
3 × 7289813
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21869439
Product of the distinct prime numbers
The prime factorization of 21869439 is 3 × 7289813.
Since it has a total of 2 prime factors.
10 , 6 , 14 , 48 , 601 , 142 , 3040 , 815 , 39462 , 42449 , 345153 , 310356 , 8995220 , 9394767 , 20587733 , 37529540 , 825395960 , 637570480 , 8761694802 , 180513669
n×2
43738878
n×3
65608317
n×4
87477756
n×5
109347195
n÷2
10934719.5
n÷3
7289813
n÷3
5467359.75
n÷5
4373887.8
n2
478272362174721
n3
1.0459548249966E+22
n4
2.2874445242019E+29
n5
5.0025128487917E+36
2 √n
4676.4771997734
3 √n
279.64853435294
4 √n
68.384773157285
5 √n
29.374300169082
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
-21869438
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 21869439 can be divided by 4 positive divisors.
The sum of these divisors (counting 21869439) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011011011001101111111
3
Ternary
1112011002020020
4
Quaternary
1103123031333
5
Quinary
21044310224
6
Senary
2100423223
8
Octal
123331577
10
Decimal
21869439
12
Duodecimal
73a7b13
16
Hexadecimal
14db37f
20
Vigesimal
6gddbj
36
Base36
d0qkf
md5
8689a1f1bad59375b0c95e0129c0cf2b
sha1
942363922205b78ad780a08b9aabc889c183b110
sha256
46354d19fd0512b619d9f93ea92c62d268c57b3341d068f4ea0baa959c50cfb0
sha512
76dba0fdce12e404ce4eb673b29a4a757aff1c2e3f2bfd0c92702799d2d9d8f86bb25922e5a9b8c4615462eacbe2fb2bc2740c82c7407f97652de00e53576e49
ripemd-160
eeeb1428a1791e04f80a05319a72807b69c428f2
Diameter
43738878
Circumference
137409737.80106
Area
1.5025369394231E+15
Volume
4.3812853255948E+22
Surface area
6.0101477576926E+15
Circumference
137409737.80106
Perimeter
87477756
Area
478272362174721
Diagonal
30928057.235291
Surface area
2869634173048326
Volume
1.0459548249966E+22
Space diagonal
37878979.481028
Perimeter
65608317
Area
2.0709800778565E+14
Altitude
18939489.740514
Surface area
2.0709800778565E+14
Volume
1.2326695826165E+21
Height
10309352.411764