21492686 is an even 8-digits composite number following 21492685
and preceding 21492687 . In scientific notation, it is written as 2.1492686 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 10180728 positive integers (up to 21492686) that are relatively prime to 21492686.
21492686 has 8 divisors, whose sum is 33935880
The reverse of 21492686 is 68629412
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million four hundred ninety-two thousand six hundred eighty-six
Scientific notation
2.1492686 × 10^7
Engineering notation
2.1492686 × 10^6
Prime Factorization
2 × 19 × 565597
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21492686
Product of the distinct prime numbers
The prime factorization of 21492686 is 2 × 19 × 565597.
Since it has a total of 3 prime factors.
8 , 6 , 71 , 44 , 493 , 892 , 2962 , 9922 , 64040 , 93251 , 151869 , 652012 , 1813024 , 2190802 , 58971569 , 73725262 , 670942980 , 458797417 , 4249481008 , 9256350474
n×2
42985372
n×3
64478058
n×4
85970744
n×5
107463430
n÷2
10746343
n÷3
7164228.6666667
n÷3
5373171.5
n÷5
4298537.2
n2
461935551494596
n3
9.9282357605102E+21
n4
2.1338445373462E+29
n5
4.5862050613996E+36
2 √n
4636.020491758
3 √n
278.03335348488
4 √n
68.088328601589
5 √n
29.272387040399
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
-21492685
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 21492686 can be divided by 8 positive divisors.
The sum of these divisors (counting 21492686) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111001111001110
3
Ternary
1111102221102102
4
Quaternary
1101333033032
5
Quinary
21000231221
6
Senary
2044355102
8
Octal
121771716
10
Decimal
21492686
12
Duodecimal
7245a92
16
Hexadecimal
147f3ce
20
Vigesimal
6e6be6
36
Base36
csnv2
md5
ba87889840b20911c5629890add9204c
sha1
a8b4c09583e6929afc464d343e6fa160a6b58b84
sha256
92e06da39346bbceae90bfa66ab245b5c4adc531558c9a873fa03c170ca28725
sha512
3ed99ab5657a8d88e872064547743e8e111fbdb29ddafa9b1f984cbdc47cca28baac1b8237dec053030381b857b7a4d6b8e3d44426df220c1ed35ae6958bc7e0
ripemd-160
e42940f9ba97979bc0f9cb9bd37331ee908e4647
Diameter
42985372
Circumference
135042528.88702
Area
1.4512133350074E+15
Volume
4.1587296704435E+22
Surface area
5.8048533400295E+15
Circumference
135042528.88702
Perimeter
85970744
Area
461935551494596
Diagonal
30395248.033026
Surface area
2771613308967576
Volume
9.9282357605102E+21
Space diagonal
37226424.143124
Perimeter
64478058
Area
2.0002396125275E+14
Altitude
18613212.071562
Surface area
2.0002396125275E+14
Volume
1.1700538052459E+21
Height
10131749.344342