21494885 is an odd 8-digits composite number following 21494884
and preceding 21494886 . In scientific notation, it is written as 2.1494885 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 16184320 positive integers (up to 21494885) that are relatively prime to 21494885.
21494885 has 8 divisors, whose sum is 27311256
The reverse of 21494885 is 58849412
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million four hundred ninety-four thousand eight hundred eighty-five
Scientific notation
2.1494885 × 10^7
Engineering notation
2.1494885 × 10^6
Prime Factorization
5 × 17 × 252881
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21494885
Product of the distinct prime numbers
The prime factorization of 21494885 is 5 × 17 × 252881.
Since it has a total of 3 prime factors.
1 , 8 , 76 , 41 , 561 , 659 , 4548 , 7684 , 25911 , 95801 , 723463 , 431073 , 3693649 , 161965 , 13948933 , 44994130 , 528983252 , 501951583 , 2345771033 , 6267271635
n×2
42989770
n×3
64484655
n×4
85979540
n×5
107474425
n÷2
10747442.5
n÷3
7164961.6666667
n÷3
5373721.25
n÷5
4298977
n2
462030081163225
n3
9.9312834611442E+21
n4
2.134717958997E+29
n5
4.5885517036074E+36
2 √n
4636.2576503037
3 √n
278.04283538481
4 √n
68.090070129966
5 √n
29.27298601016
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
-21494884
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 21494885 can be divided by 8 positive divisors.
The sum of these divisors (counting 21494885) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111110001100101
3
Ternary
1111110001102212
4
Quaternary
1101333301211
5
Quinary
21000314020
6
Senary
2044413205
8
Octal
121776145
10
Decimal
21494885
12
Duodecimal
7247205
16
Hexadecimal
147fc65
20
Vigesimal
6e6h45
36
Base36
cspk5
md5
2fb4d48c6f63f49f5a82d0b57c77ba5f
sha1
e970d6cfd345a28fc89ed16515b225788191e36a
sha256
67488214a54ddf4356a21c8aed8f41f300837a828fd6aaed0a1cfc1a52ccc85e
sha512
e1f2bb0faa3ebba5feb091cc0a3712dd6d3e1d4cff5fa217662e9ce12628c6f332f9255d6fffa0acfefaca308edcaf83baa541cb8f453a946f759e93cb77f7c1
ripemd-160
a848a30909fa7c4f24abf38a4870a89268b0dfab
Diameter
42989770
Circumference
135056345.61151
Area
1.4515103087199E+15
Volume
4.1600062882998E+22
Surface area
5.8060412348795E+15
Circumference
135056345.61151
Perimeter
85979540
Area
462030081163225
Diagonal
30398357.88865
Surface area
2772180486979350
Volume
9.9312834611442E+21
Space diagonal
37230232.92285
Perimeter
64484655
Area
2.0006489379997E+14
Altitude
18615116.461425
Surface area
2.0006489379997E+14
Volume
1.1704129802101E+21
Height
10132785.962883