21243657 is an odd 8-digits composite number following 21243656
and preceding 21243658 . In scientific notation, it is written as 2.1243657 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13968288 positive integers (up to 21243657) that are relatively prime to 21243657.
21243657 has 8 divisors, whose sum is 28713184
The reverse of 21243657 is 75634212
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million two hundred forty-three thousand six hundred fifty-seven
Scientific notation
2.1243657 × 10^7
Engineering notation
2.1243657 × 10^6
Prime Factorization
3 × 73 × 97003
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21243657
Product of the distinct prime numbers
The prime factorization of 21243657 is 3 × 73 × 97003.
Since it has a total of 3 prime factors.
8 , 6 , 9 , 11 , 336 , 90 , 6929 , 7093 , 92197 , 98374 , 373730 , 516491 , 6203478 , 4879106 , 85760841 , 27268710 , 611064172 , 158833525 , 1524426016 , 6019912836
n×2
42487314
n×3
63730971
n×4
84974628
n×5
106218285
n÷2
10621828.5
n÷3
7081219
n÷3
5310914.25
n÷5
4248731.4
n2
451292962733649
n3
9.5871129068274E+21
n4
2.0366533821291E+29
n5
4.3265965877842E+36
2 √n
4609.0841823512
3 √n
276.95535083845
4 √n
67.890236281451
5 √n
29.204236458092
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
-21243656
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 21243657 can be divided by 8 positive divisors.
The sum of these divisors (counting 21243657) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001000010011100001001
3
Ternary
1110222021211010
4
Quaternary
1101002130021
5
Quinary
20414244112
6
Senary
2035154133
8
Octal
121023411
10
Decimal
21243657
12
Duodecimal
7145949
16
Hexadecimal
1442709
20
Vigesimal
6cf92h
36
Base36
cnbpl
md5
2f06071ee1b47e97e621e4831127355d
sha1
319c3e88d1b9f1c6c7c57bcaede8980b407d6204
sha256
3a9f6e541a9ab397a9f9ccc6d23102819d3af795654f5d80c994284b56bc0337
sha512
2a235d506d48e4e3c0fb5685fca7ac534c40c163b211d66a4d665cc85794cc61990c6abed2e8692b340cf3c347166b35d870f8376eedf8210bf69f8e647e682b
ripemd-160
b1b4ead4c63a89f7c59443d711a72850255b43d9
Diameter
42487314
Circumference
133477833.53316
Area
1.4177786563408E+15
Volume
4.01584046363E+22
Surface area
5.6711146253632E+15
Circumference
133477833.53316
Perimeter
84974628
Area
451292962733649
Diagonal
30043067.843802
Surface area
2707757776401894
Volume
9.5871129068274E+21
Space diagonal
36795093.262566
Perimeter
63730971
Area
1.9541558513824E+14
Altitude
18397546.631283
Surface area
1.9541558513824E+14
Volume
1.1298520914031E+21
Height
10014355.947934