21491662 is an even 8-digits composite number following 21491661
and preceding 21491663 . In scientific notation, it is written as 2.1491662 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 10717392 positive integers (up to 21491662) that are relatively prime to 21491662.
21491662 has 8 divisors, whose sum is 32322816
The reverse of 21491662 is 26619412
Previous prime number is 383
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million four hundred ninety-one thousand six hundred sixty-two
Scientific notation
2.1491662 × 10^7
Engineering notation
2.1491662 × 10^6
Prime Factorization
2 × 383 × 28057
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21491662
Product of the distinct prime numbers
The prime factorization of 21491662 is 2 × 383 × 28057.
Since it has a total of 3 prime factors.
7 , 6 , 95 , 74 , 782 , 550 , 3851 , 40 , 46976 , 66733 , 494023 , 131442 , 340381 , 1865324 , 16419709 , 95013412 , 226088606 , 362076662 , 4478234543 , 5114786909
n×2
42983324
n×3
64474986
n×4
85966648
n×5
107458310
n÷2
10745831
n÷3
7163887.3333333
n÷3
5372915.5
n÷5
4298332.4
n2
461891535522244
n3
9.9268167621051E+21
n4
2.133437905871E+29
n5
4.5851126370967E+36
2 √n
4635.9100508962
3 √n
278.02893786374
4 √n
68.087517585062
5 √n
29.27210810369
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
-21491661
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 21491662 can be divided by 8 positive divisors.
The sum of these divisors (counting 21491662) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110111111001110
3
Ternary
1111102220000111
4
Quaternary
1101332333032
5
Quinary
21000213122
6
Senary
2044350234
8
Octal
121767716
10
Decimal
21491662
12
Duodecimal
724537a
16
Hexadecimal
147efce
20
Vigesimal
6e6932
36
Base36
csn2m
md5
78f0ebd2df664b90d348fafd55214b79
sha1
e242bf542d7d5ab081615ce902b2d25121ac0af8
sha256
28ba4dc26995031c049059af1f4d78277b40efacd086754e13277e01772d64bc
sha512
04facdb9097aa22b8c75aa9574fce419729dadd786a5039a23a918aab920e20caf01cb056b75867bcb547c94cdbb8cb87311f3e9e77fe9daabc11d39d48ec33b
ripemd-160
77772c39c317ef577f24f7b4fff9f399cab55476
Diameter
42983324
Circumference
135036094.90527
Area
1.451075054752E+15
Volume
4.1581352817815E+22
Surface area
5.804300219008E+15
Circumference
135036094.90527
Perimeter
85966648
Area
461891535522244
Diagonal
30393799.878338
Surface area
2771349213133464
Volume
9.9268167621051E+21
Space diagonal
37224650.523097
Perimeter
64474986
Area
2.0000490177763E+14
Altitude
18612325.261549
Surface area
2.0000490177763E+14
Volume
1.1698865746801E+21
Height
10131266.626113