21351471 is an odd 8-digits composite number following 21351470
and preceding 21351472 . In scientific notation, it is written as 2.1351471 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 14192832 positive integers (up to 21351471) that are relatively prime to 21351471.
21351471 has 8 divisors, whose sum is 28551600
The reverse of 21351471 is 17415312
Previous prime number is 349
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million three hundred fifty-one thousand four hundred seventy-one
Scientific notation
2.1351471 × 10^7
Engineering notation
2.1351471 × 10^6
Prime Factorization
3 × 349 × 20393
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21351471
Product of the distinct prime numbers
The prime factorization of 21351471 is 3 × 349 × 20393.
Since it has a total of 3 prime factors.
8 , 2 , 25 , 49 , 615 , 19 , 4293 , 5896 , 20570 , 25529 , 735089 , 645955 , 5569787 , 9036124 , 66029051 , 31732672 , 169259081 , 764619035 , 1591164889 , 6252667065
n×2
42702942
n×3
64054413
n×4
85405884
n×5
106757355
n÷2
10675735.5
n÷3
7117157
n÷3
5337867.75
n÷5
4270294.2
n2
455885313863841
n3
9.7338220582897E+21
n4
2.0783141939673E+29
n5
4.4375065241382E+36
2 √n
4620.7651963717
3 √n
277.42308719849
4 √n
67.976210517884
5 √n
29.233819435163
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21351470
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21351471 can be divided by 8 positive divisors.
The sum of these divisors (counting 21351471) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001011100110000101111
3
Ternary
1111011202201020
4
Quaternary
1101130300233
5
Quinary
20431221341
6
Senary
2041345223
8
Octal
121346057
10
Decimal
21351471
12
Duodecimal
7198213
16
Hexadecimal
145cc2f
20
Vigesimal
6d8idb
36
Base36
cpmwf
md5
9c1521a97e53a5a6fe6f62cf90a02181
sha1
8a4b7991ac715c4e54adb676d8813ad59f4a17a4
sha256
474fb9112968f75b944306430c30959eae8b66ccad53ae083dc3b493376addaf
sha512
bb18e69a30c58c2ea44d2006ea05539736fec09982e83d17a7071de0e05efdcad9d8979dcde9e2db7f8dd0dc40039799f9cf8e4a1f5ba4b7c9abf87b95a0125f
ripemd-160
032b6ddefeebe1ef4ffd33a96898f3f9d0bf4289
Diameter
42702942
Circumference
134155248.87387
Area
1.4322059529141E+15
Volume
4.0772938492898E+22
Surface area
5.7288238116565E+15
Circumference
134155248.87387
Perimeter
85405884
Area
455885313863841
Diagonal
30195539.864816
Surface area
2735311883183046
Volume
9.7338220582897E+21
Space diagonal
36981832.588333
Perimeter
64054413
Area
1.9740413150916E+14
Altitude
18490916.294167
Surface area
1.9740413150916E+14
Volume
1.1471419307133E+21
Height
10065179.954939