21243742 is an even 8-digits composite number following 21243741
and preceding 21243743 . In scientific notation, it is written as 2.1243742 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 9488160 positive integers (up to 21243742) that are relatively prime to 21243742.
21243742 has 8 divisors, whose sum is 31945896
The reverse of 21243742 is 24734212
Previous prime number is 403
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million two hundred forty-three thousand seven hundred forty-two
Scientific notation
2.1243742 × 10^7
Engineering notation
2.1243742 × 10^6
Prime Factorization
2 × 403 × 26357
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21243742
Product of the distinct prime numbers
The prime factorization of 21243742 is 2 × 403 × 26357.
Since it has a total of 3 prime factors.
10 , 8 , 25 , 75 , 837 , 413 , 2064 , 1741 , 51583 , 39368 , 901591 , 199413 , 5115644 , 3557346 , 17026520 , 53403171 , 468012414 , 415988199 , 5190091924 , 9036734300
n×2
42487484
n×3
63731226
n×4
84974968
n×5
106218710
n÷2
10621871
n÷3
7081247.3333333
n÷3
5310935.5
n÷5
4248748.4
n2
451296574162564
n3
9.5872279869934E+21
n4
2.0366859785087E+29
n5
4.3266831462456E+36
2 √n
4609.0934032627
3 √n
276.95572022202
4 √n
67.890304191856
5 √n
29.204259828419
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21243741
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21243742 can be divided by 8 positive divisors.
The sum of these divisors (counting 21243742) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001000010011101011110
3
Ternary
1110222021221021
4
Quaternary
1101002131132
5
Quinary
20414244432
6
Senary
2035154354
8
Octal
121023536
10
Decimal
21243742
12
Duodecimal
71459ba
16
Hexadecimal
144275e
20
Vigesimal
6cf972
36
Base36
cnbry
md5
a1d6d62fdc45028648d584b8f6dc81c2
sha1
a5c53d1432118f79b39f10919a1a371d0d13411e
sha256
4a928eeaf4987f360d8f7a06d6b25d03877aa74763ee09638522ca74da12afec
sha512
c293f4b69d4b81429ac063849c228cc20c9b7732843668e523e2a8659fdaf6ce34f78752be1bb048d24cfb7279d6e8bc5e2f39a8d9aa67ce154256836f8caeeb
ripemd-160
96dc058e88c8f11fafc90741cd4ed1852ad0fefc
Diameter
42487484
Circumference
133478367.60391
Area
1.4177900019794E+15
Volume
4.0158886682972E+22
Surface area
5.6711600079174E+15
Circumference
133478367.60391
Perimeter
84974968
Area
451296574162564
Diagonal
30043188.051955
Surface area
2707779444975384
Volume
9.5872279869934E+21
Space diagonal
36795240.486885
Perimeter
63731226
Area
1.9541714893283E+14
Altitude
18397620.243442
Surface area
1.9541714893283E+14
Volume
1.1298656537307E+21
Height
10014396.017318