21031470 is an even 8-digits composite number following 21031469
and preceding 21031471 . In scientific notation, it is written as 2.1031470 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 5608368 positive integers (up to 21031470) that are relatively prime to 21031470.
21031470 has 16 divisors, whose sum is 42063120
The reverse of 21031470 is 07413012
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million thirty-one thousand four hundred seventy
Scientific notation
2.1031470 × 10^7
Engineering notation
2.1031470 × 10^6
Prime Factorization
2 × 9 × 5 × 233683
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21031470
Product of the distinct prime numbers
The prime factorization of 21031470 is 2 × 9 × 5 × 233683.
Since it has a total of 4 prime factors.
6 , 10 , 75 , 65 , 80 , 624 , 2224 , 7846 , 88839 , 92436 , 263841 , 843465 , 7970501 , 8619312 , 10147222 , 30496486 , 973422590 , 438100963 , 4534941665 , 1047485340
n×2
42062940
n×3
63094410
n×4
84125880
n×5
105157350
n÷2
10515735
n÷3
7010490
n÷3
5257867.5
n÷5
4206294
n2
442322730360900
n3
9.3026972339034E+21
n4
1.9564939779392E+29
n5
4.1147944402209E+36
2 √n
4586.008068026
3 √n
276.03016368506
4 √n
67.720071382317
5 √n
29.145662111338
1 , 2 , 5 , 9 , 10 , 18 , 45 , 90 , 233683 , 467366 , 1168415 , 2103147 , 2336830 , 4206294 , 10515735 , 21031470
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
-21031469
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 21031470 can be divided by 16 positive divisors.
The sum of these divisors (counting 21031470) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001110101000101110
3
Ternary
1110120111202100
4
Quaternary
1100032220232
5
Quinary
20341001340
6
Senary
2030435530
8
Octal
120165056
10
Decimal
21031470
12
Duodecimal
7062ba6
16
Hexadecimal
140ea2e
20
Vigesimal
6b8ida
36
Base36
cirzi
md5
15816ce988209cc1b74b7782a4e45e35
sha1
be53fee0ce306c17425c06898bb577790978633c
sha256
1ad38b8e6d98597e1652b27e3e5d67dd5c5f91c992fbc8c7fa8a9eadd557e568
sha512
4d469e7bacbb714401f3202718944de2808fd2f308256218ac769196dc45cddb944135afd4026b3318ad5ad00555dd06bf0d67d9e20b4de82c4ca21670942d37
ripemd-160
60ade3711a22972fb82ba448491dd74fee676408
Diameter
42062940
Circumference
132144623.29239
Area
1.3895978402176E+15
Volume
3.8967047051468E+22
Surface area
5.5583913608703E+15
Circumference
132144623.29239
Perimeter
84125880
Area
442322730360900
Diagonal
29742990.110643
Surface area
2653936382165400
Volume
9.3026972339034E+21
Space diagonal
36427574.597861
Perimeter
63094410
Area
1.9153136058192E+14
Altitude
18213787.29893
Surface area
1.9153136058192E+14
Volume
1.0963333829031E+21
Height
9914330.036881