21493904 is an even 8-digits composite number following 21493903
and preceding 21493905 . In scientific notation, it is written as 2.1493904 × 10^7.
The sum of its digits is 32. It has a total of 5 prime factors and 10 positive divisors.
There are 10746944 positive integers (up to 21493904) that are relatively prime to 21493904.
21493904 has 10 divisors, whose sum is 41644470
The reverse of 21493904 is 40939412
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million four hundred ninety-three thousand nine hundred four
Scientific notation
2.1493904 × 10^7
Engineering notation
2.1493904 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 1343369
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2686738
Product of the distinct prime numbers
The prime factorization of 21493904 is 2 × 2 × 2 × 2 × 1343369.
Since it has a total of 5 prime factors.
9 , 2 , 70 , 16 , 707 , 202 , 3002 , 9414 , 72016 , 38113 , 865803 , 895751 , 6997511 , 461472 , 12863885 , 75388775 , 685370794 , 755737449 , 1707933040 , 9249253496
n×2
42987808
n×3
64481712
n×4
85975616
n×5
107469520
n÷2
10746952
n÷3
7164634.6666667
n÷3
5373476
n÷5
4298780.8
n2
461987909161216
n3
9.9299237686719E+21
n4
2.1343282821115E+29
n5
4.587504720019E+36
2 √n
4636.1518525605
3 √n
278.03860547661
4 √n
68.089293229997
5 √n
29.272718808697
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21493903
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21493904 can be divided by 10 positive divisors.
The sum of these divisors (counting 21493904) is 1, the average is 0.1.
Base
System
Value
2
Binary
1010001111111100010010000
3
Ternary
1111110000002112
4
Quaternary
1101333202100
5
Quinary
21000301104
6
Senary
2044404452
8
Octal
121774220
10
Decimal
21493904
12
Duodecimal
7246728
16
Hexadecimal
147f890
20
Vigesimal
6e6ef4
36
Base36
csosw
md5
44423e9fe7585b8629577a31d741a23f
sha1
5a86040f45ab57ec059c6bf775ba2cbbe22c7624
sha256
fa6d27d61b228013ea3062ca34d9498f58a45122fcb06a1b680cf810955442c4
sha512
64c5e058bd0ed5db95d0ce201cb9c269b41e2edf52eb80058fdee183197cc04754d13470ee91e300ee304317d0a3a40c22dae0037fd2e4beed322825ee527d40
ripemd-160
7aebbfa63ef87d3d0a8072473cb9dd8164c9be54
Diameter
42987808
Circumference
135050181.80673
Area
1.4513778214682E+15
Volume
4.1594367416488E+22
Surface area
5.8055112858727E+15
Circumference
135050181.80673
Perimeter
85975616
Area
461987909161216
Diagonal
30396970.545145
Surface area
2771927454967296
Volume
9.9299237686719E+21
Space diagonal
37228533.781008
Perimeter
64481712
Area
2.0004663278744E+14
Altitude
18614266.890504
Surface area
2.0004663278744E+14
Volume
1.1702527389156E+21
Height
10132323.515048