21479919 is an odd 8-digits composite number following 21479918
and preceding 21479920 . In scientific notation, it is written as 2.1479919 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 13912416 positive integers (up to 21479919) that are relatively prime to 21479919.
21479919 has 16 divisors, whose sum is 29462400
The reverse of 21479919 is 91997412
Previous prime number is 269
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-one million four hundred seventy-nine thousand nine hundred nineteen
Scientific notation
2.1479919 × 10^7
Engineering notation
2.1479919 × 10^6
Prime Factorization
3 × 43 × 269 × 619
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21479919
Product of the distinct prime numbers
The prime factorization of 21479919 is 3 × 43 × 269 × 619.
Since it has a total of 4 prime factors.
10 , 6 , 76 , 79 , 421 , 245 , 209 , 3359 , 58332 , 26477 , 564450 , 391703 , 3446617 , 3499800 , 79496143 , 56395307 , 181278590 , 162145560 , 3777145842 , 1134796390
n×2
42959838
n×3
64439757
n×4
85919676
n×5
107399595
n÷2
10739959.5
n÷3
7159973
n÷3
5369979.75
n÷5
4295983.8
n2
461386920246561
n3
9.9105536745556E+21
n4
2.1287789017461E+29
n5
4.5725998378414E+36
2 √n
4634.6433519743
3 √n
277.97829049111
4 √n
68.078214958784
5 √n
29.268908560368
1 , 3 , 43 , 129 , 269 , 619 , 807 , 1857 , 11567 , 26617 , 34701 , 79851 , 166511 , 499533 , 7159973 , 21479919
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21479918
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21479919 can be divided by 16 positive divisors.
The sum of these divisors (counting 21479919) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001111100000111101111
3
Ternary
1111102021220120
4
Quaternary
1101330013233
5
Quinary
20444324134
6
Senary
2044220023
8
Octal
121740757
10
Decimal
21479919
12
Duodecimal
723a613
16
Hexadecimal
147c1ef
20
Vigesimal
6e4jfj
36
Base36
cse0f
md5
2baccd74a0bc6f2ae2cdd604a8dbbef3
sha1
f5a7d3e178c827a011ed430bff21f3b3972ea07d
sha256
440cb3673dcb117e20670b4819157e9534b8058aa5e94de18ba47fe5cf5f7e74
sha512
46feeb9a452a30816a4330eb797224974da688d654f82e44710526683e8900b9464f1111d18c12238e246de34e10bc377c17272be31d2d0266860f60d649594c
ripemd-160
2bd3ee0817560b78d30cdf2353e0c11e409fee70
Diameter
42959838
Circumference
134962311.46021
Area
1.449489759109E+15
Volume
4.1513230155988E+22
Surface area
5.7979590364361E+15
Circumference
134962311.46021
Perimeter
85919676
Area
461386920246561
Diagonal
30377192.768476
Surface area
2768321521479366
Volume
9.9105536745556E+21
Space diagonal
37204311.050464
Perimeter
64439757
Area
1.9978639695369E+14
Altitude
18602155.525232
Surface area
1.9978639695369E+14
Volume
1.1679699514319E+21
Height
10125730.922825