21532905 is an odd 8-digits composite number following 21532904
and preceding 21532906 . In scientific notation, it is written as 2.1532905 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 11484144 positive integers (up to 21532905) that are relatively prime to 21532905.
21532905 has 8 divisors, whose sum is 26796672
The reverse of 21532905 is 50923512
Previous prime number is 27
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million five hundred thirty-two thousand nine hundred five
Scientific notation
2.1532905 × 10^7
Engineering notation
2.1532905 × 10^6
Prime Factorization
5 × 27 × 159503
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21532905
Product of the distinct prime numbers
The prime factorization of 21532905 is 5 × 27 × 159503.
Since it has a total of 3 prime factors.
10 , 4 , 86 , 47 , 956 , 626 , 3476 , 6548 , 62305 , 66423 , 221061 , 613228 , 9359333 , 7578945 , 11702473 , 22090287 , 710299988 , 741250476 , 9617257857 , 2047342857
n×2
43065810
n×3
64598715
n×4
86131620
n×5
107664525
n÷2
10766452.5
n÷3
7177635
n÷3
5383226.25
n÷5
4306581
n2
463665997739025
n3
9.9840758810446E+21
n4
2.1498615745933E+29
n5
4.6292765048867E+36
2 √n
4640.3561285746
3 √n
278.20667222276
4 √n
68.120159487296
5 √n
29.283334261153
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
-21532904
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 21532905 can be divided by 8 positive divisors.
The sum of these divisors (counting 21532905) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001001000011101001
3
Ternary
1111111222121000
4
Quaternary
1102021003221
5
Quinary
21003023110
6
Senary
2045305213
8
Octal
122110351
10
Decimal
21532905
12
Duodecimal
7265209
16
Hexadecimal
14890e9
20
Vigesimal
6ebc55
36
Base36
ctiw9
md5
c16fcdc3217930667415b389025b765d
sha1
60f1d1e31203d676ee76839ce519ef1c4b4a9a46
sha256
6fc35e38546c66f7eda361898b83ae3a46a3308541ec64af47df4a972700f11f
sha512
cc55243aff1a4839e71c34d3d3270f2a699db7e01c1f46c403cb58fc19f5ed9190a715ea2b5622f95bdc71cbb8d3d889a51b511d8b21cfdf77f9a04d89711c23
ripemd-160
4b86356b2a688a3203584e6abf53e379bd0639cc
Diameter
43065810
Circumference
135295232.31689
Area
1.4566496922163E+15
Volume
4.1821199254364E+22
Surface area
5.8265987688652E+15
Circumference
135295232.31689
Perimeter
86131620
Area
463665997739025
Diagonal
30452126.288291
Surface area
2781995986434150
Volume
9.9840758810446E+21
Space diagonal
37296085.494554
Perimeter
64598715
Area
2.0077326645653E+14
Altitude
18648042.747277
Surface area
2.0077326645653E+14
Volume
1.1766346265613E+21
Height
10150708.762764