21494782 is an even 8-digits composite number following 21494781
and preceding 21494783 . In scientific notation, it is written as 2.1494782 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 10747390 positive integers (up to 21494782) that are relatively prime to 21494782.
21494782 has 4 divisors, whose sum is 32242176
The reverse of 21494782 is 28749412
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million four hundred ninety-four thousand seven hundred eighty-two
Scientific notation
2.1494782 × 10^7
Engineering notation
2.1494782 × 10^6
Prime Factorization
2 × 10747391
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21494782
Product of the distinct prime numbers
The prime factorization of 21494782 is 2 × 10747391.
Since it has a total of 2 prime factors.
10 , 2 , 1 , 11 , 730 , 457 , 2463 , 1954 , 45283 , 6197 , 434515 , 908934 , 252382 , 5928693 , 99771565 , 85990202 , 122446286 , 357106959 , 6178916925 , 3379776879
n×2
42989564
n×3
64484346
n×4
85979128
n×5
107473910
n÷2
10747391
n÷3
7164927.3333333
n÷3
5373695.5
n÷5
4298956.4
n2
462025653227524
n3
9.9311406945332E+21
n4
2.1346770424032E+29
n5
4.5884417666862E+36
2 √n
4636.2465421934
3 √n
278.04239127206
4 √n
68.089988560679
5 √n
29.272957955826
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
-21494781
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 21494782 can be divided by 4 positive divisors.
The sum of these divisors (counting 21494782) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111111101111111110
3
Ternary
1111110001022001
4
Quaternary
1101333233332
5
Quinary
21000313112
6
Senary
2044412514
8
Octal
121775776
10
Decimal
21494782
12
Duodecimal
724713a
16
Hexadecimal
147fbfe
20
Vigesimal
6e6gj2
36
Base36
cspha
md5
a1ccd7ef9a7d46f394a2e3fb42881631
sha1
c4852059a27d1a1032089f525a3ace3467227595
sha256
dbc7c1288045f4a8035f3ca9a576f4e52a32c27ef6d24ddd79956b4879f1967d
sha512
b9f8051d16eb192ac9eafa8b248b76b63da0552f9e0e68a17a3cf53decffcb76507bcc50788d84fe3ee68103ba979790c5c6f9c60dc07887570d3f8bbc350bce
ripemd-160
324aaf20595d401e775348c15b7f099e763f5313
Diameter
42989564
Circumference
135055698.44343
Area
1.4514963979496E+15
Volume
4.1599464863616E+22
Surface area
5.8059855917985E+15
Circumference
135055698.44343
Perimeter
85979128
Area
462025653227524
Diagonal
30398212.224653
Surface area
2772153919365144
Volume
9.9311406945332E+21
Space diagonal
37230054.521617
Perimeter
64484346
Area
2.0006297644757E+14
Altitude
18615027.260808
Surface area
2.0006297644757E+14
Volume
1.1703961550037E+21
Height
10132737.408218