21490718 is an even 8-digits composite number following 21490717
and preceding 21490719 . In scientific notation, it is written as 2.1490718 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 10745358 positive integers (up to 21490718) that are relatively prime to 21490718.
21490718 has 4 divisors, whose sum is 32236080
The reverse of 21490718 is 81709412
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million four hundred ninety thousand seven hundred eighteen
Scientific notation
2.1490718 × 10^7
Engineering notation
2.1490718 × 10^6
Prime Factorization
2 × 10745359
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21490718
Product of the distinct prime numbers
The prime factorization of 21490718 is 2 × 10745359.
Since it has a total of 2 prime factors.
5 , 2 , 92 , 27 , 903 , 794 , 5942 , 2925 , 27589 , 6489 , 801973 , 22512 , 4165350 , 1231654 , 38460899 , 50255149 , 61877672 , 400455013 , 8327352501 , 9885391791
n×2
42981436
n×3
64472154
n×4
85962872
n×5
107453590
n÷2
10745359
n÷3
7163572.6666667
n÷3
5372679.5
n÷5
4298143.6
n2
461850960155524
n3
9.9255087427316E+21
n4
2.1330630939658E+29
n5
4.5841057428626E+36
2 √n
4635.8082358959
3 √n
278.02486708876
4 √n
68.086769903527
5 √n
29.271850949491
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21490717
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21490718 can be divided by 4 positive divisors.
The sum of these divisors (counting 21490718) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111110110000011110
3
Ternary
1111102211201112
4
Quaternary
1101332300132
5
Quinary
21000200333
6
Senary
2044342022
8
Octal
121766036
10
Decimal
21490718
12
Duodecimal
7244912
16
Hexadecimal
147ec1e
20
Vigesimal
6e66fi
36
Base36
csmce
md5
5ef9bba5a6d783ec5e921cef805260d9
sha1
2fce4fe9dac9916641ff70bb83898c5ec64e0f75
sha256
3d765d093a92f5941e87e742a10e1ac2fcdf8013f6de60acab8422f8632f310a
sha512
2caa2472fc7a052141fc073149a7c4327d31d4f8450c1f9a528f1ecba61436cdf1a2b2f56f9733d7b0c88d004b7acde4110968c62b529b53d7667ec0859eca42
ripemd-160
9cbb0a448e53804f974dd8241ba751c9f5bf11fc
Diameter
42981436
Circumference
135030163.57834
Area
1.450947583478E+15
Volume
4.1575873799076E+22
Surface area
5.8037903339119E+15
Circumference
135030163.57834
Perimeter
85962872
Area
461850960155524
Diagonal
30392464.860736
Surface area
2771105760933144
Volume
9.9255087427316E+21
Space diagonal
37223015.467135
Perimeter
64472154
Area
1.9998733212846E+14
Altitude
18611507.733568
Surface area
1.9998733212846E+14
Volume
1.1697324231186E+21
Height
10130821.620245