21491329 is an odd 8-digits composite number following 21491328
and preceding 21491330 . In scientific notation, it is written as 2.1491329 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 21468484 positive integers (up to 21491329) that are relatively prime to 21491329.
21491329 has 4 divisors, whose sum is 21514176
The reverse of 21491329 is 92319412
Previous prime number is 983
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million four hundred ninety-one thousand three hundred twenty-nine
Scientific notation
2.1491329 × 10^7
Engineering notation
2.1491329 × 10^6
Prime Factorization
983 × 21863
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21491329
Product of the distinct prime numbers
The prime factorization of 21491329 is 983 × 21863.
Since it has a total of 2 prime factors.
5 , 5 , 43 , 67 , 207 , 935 , 9190 , 6947 , 7495 , 96271 , 805905 , 534077 , 7776801 , 282948 , 61803275 , 74351377 , 859121584 , 429310011 , 7546298810 , 5179110611
n×2
42982658
n×3
64473987
n×4
85965316
n×5
107456645
n÷2
10745664.5
n÷3
7163776.3333333
n÷3
5372832.25
n÷5
4298265.8
n2
461877222186241
n3
9.9263553396106E+21
n4
2.1333056837448E+29
n5
4.5847574306929E+36
2 √n
4635.8741354787
3 √n
278.02750189422
4 √n
68.087253840045
5 √n
29.272017392488
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
-21491328
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 21491329 can be divided by 4 positive divisors.
The sum of these divisors (counting 21491329) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111110111010000001
3
Ternary
1111102212120011
4
Quaternary
1101332322001
5
Quinary
21000210304
6
Senary
2044344521
8
Octal
121767201
10
Decimal
21491329
12
Duodecimal
7245141
16
Hexadecimal
147ee81
20
Vigesimal
6e6869
36
Base36
csmtd
md5
cea2a50b3b4d4a0b101431fdf6e91356
sha1
19f5bfa936f505bf49e1c70df21d34e146c10b74
sha256
2a823775f03593545a73ea213c61229f5b968518f0a94b32a5b27b6c4a14339d
sha512
8ac92973442c4c52d99a15285783698be6cc8df146a2c62ea86258cd884f9b9ab807718df1058fc9c37f32a7807f58f60671f311424fe3e7f5610322204aef22
ripemd-160
4ee888e998a472c10b2df33e46c0739dc50e72df
Diameter
42982658
Circumference
135034002.60456
Area
1.4510300880808E+15
Volume
4.157942001579E+22
Surface area
5.804120352323E+15
Circumference
135034002.60456
Perimeter
85965316
Area
461877222186241
Diagonal
30393328.945222
Surface area
2771263333117446
Volume
9.9263553396106E+21
Space diagonal
37224073.750178
Perimeter
64473987
Area
1.9999870392134E+14
Altitude
18612036.875089
Surface area
1.9999870392134E+14
Volume
1.1698321955177E+21
Height
10131109.648407