21491433 is an odd 8-digits composite number following 21491432
and preceding 21491434 . In scientific notation, it is written as 2.1491433 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 14327604 positive integers (up to 21491433) that are relatively prime to 21491433.
21491433 has 4 divisors, whose sum is 22287440
The reverse of 21491433 is 33419412
Previous prime number is 27
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million four hundred ninety-one thousand four hundred thirty-three
Scientific notation
2.1491433 × 10^7
Engineering notation
2.1491433 × 10^6
Prime Factorization
27 × 795979
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21491433
Product of the distinct prime numbers
The prime factorization of 21491433 is 27 × 795979.
Since it has a total of 2 prime factors.
4 , 2 , 79 , 46 , 682 , 892 , 8220 , 6830 , 50884 , 34949 , 492940 , 887724 , 948876 , 1908368 , 76604672 , 51262116 , 624495784 , 817529523 , 1791293589 , 686486595
n×2
42982866
n×3
64474299
n×4
85965732
n×5
107457165
n÷2
10745716.5
n÷3
7163811
n÷3
5372858.25
n÷5
4298286.6
n2
461881692393489
n3
9.9264994460013E+21
n4
2.1333469776827E+29
n5
4.5848683636621E+36
2 √n
4635.8853523356
3 √n
278.02795036678
4 √n
68.08733621119
5 √n
29.272045722834
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
-21491432
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 21491433 can be divided by 4 positive divisors.
The sum of these divisors (counting 21491433) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111110111011101001
3
Ternary
1111102212201000
4
Quaternary
1101332323221
5
Quinary
21000211213
6
Senary
2044345213
8
Octal
121767351
10
Decimal
21491433
12
Duodecimal
7245209
16
Hexadecimal
147eee9
20
Vigesimal
6e68bd
36
Base36
csmw9
md5
ef2390a314216495ab01ca0bda5b4c33
sha1
1a7db3174b20345abce849e1123dd351226cab59
sha256
b36e5ca537a00e9ad1312168be34250b80a179e2525720e680c988d3cf1c150a
sha512
bbcf6bfde081f17422c0487c3bf426c1b5a6ace79b8e8e6937c664e0b1c6c7241652ea97fe98bc467df25ee3ffa4af13bce8b5071c10f175b057585573451162
ripemd-160
160f3ddfa872e22376531ec296d24240ca2a95d7
Diameter
42982866
Circumference
135034656.05583
Area
1.451044131651E+15
Volume
4.1580023647228E+22
Surface area
5.804176526604E+15
Circumference
135034656.05583
Perimeter
85965732
Area
461881692393489
Diagonal
30393476.023433
Surface area
2771290154360934
Volume
9.9264994460013E+21
Space diagonal
37224253.883462
Perimeter
64474299
Area
2.0000063957786E+14
Altitude
18612126.941731
Surface area
2.0000063957786E+14
Volume
1.1698491786187E+21
Height
10131158.674478