21293491 is an odd 8-digits composite number following 21293490
and preceding 21293492 . In scientific notation, it is written as 2.1293491 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 20840392 positive integers (up to 21293491) that are relatively prime to 21293491.
21293491 has 4 divisors, whose sum is 21746592
The reverse of 21293491 is 19439212
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million two hundred ninety-three thousand four hundred ninety-one
Scientific notation
2.1293491 × 10^7
Engineering notation
2.1293491 × 10^6
Prime Factorization
47 × 453053
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21293491
Product of the distinct prime numbers
The prime factorization of 21293491 is 47 × 453053.
Since it has a total of 2 prime factors.
8 , 6 , 26 , 91 , 77 , 48 , 8236 , 368 , 87979 , 91929 , 994288 , 504189 , 860741 , 5693641 , 67747974 , 24621025 , 512389279 , 668682268 , 3175044614 , 7749548750
n×2
42586982
n×3
63880473
n×4
85173964
n×5
106467455
n÷2
10646745.5
n÷3
7097830.3333333
n÷3
5323372.75
n÷5
4258698.2
n2
453412758967081
n3
9.6547405023507E+21
n4
2.0558312999414E+29
n5
4.3775825282821E+36
2 √n
4614.4870787553
3 √n
277.17174507444
4 √n
67.930016036766
5 √n
29.217925252109
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
-21293490
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 21293491 can be divided by 4 positive divisors.
The sum of these divisors (counting 21293491) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001001110100110110011
3
Ternary
1111001211011211
4
Quaternary
1101032212303
5
Quinary
20422342431
6
Senary
2040220551
8
Octal
121164663
10
Decimal
21293491
12
Duodecimal
716a757
16
Hexadecimal
144e9b3
20
Vigesimal
6d1deb
36
Base36
coe5v
md5
6d35a1febb8f5d25f2f041712c5dbfe7
sha1
43f0d6b27300a0af109d9fb305ae071bf4dee130
sha256
4984b0156100e1b06c9c26bb715b27592be2329a3a62634112b4a44f2662b21b
sha512
280d080736fd93723db8b20ad7e4d0ce875e8847edf62c5ed3092d3683be53cf8983a9c5fa55963186bb551d53e86be6db799808bfbd432b781cc453f8963fb8
ripemd-160
09fc21e5035d561b5a899e885018106577e1abc9
Diameter
42586982
Circumference
133790949.78976
Area
1.4244381926149E+15
Volume
4.0441682446001E+22
Surface area
5.6977527704594E+15
Circumference
133790949.78976
Perimeter
85173964
Area
453412758967081
Diagonal
30113543.762469
Surface area
2720476553802486
Volume
9.6547405023507E+21
Space diagonal
36881408.282511
Perimeter
63880473
Area
1.9633348383274E+14
Altitude
18440704.141255
Surface area
1.9633348383274E+14
Volume
1.1378220799681E+21
Height
10037847.920823