21493903 is an odd 8-digits prime number following 21493902
and preceding 21493904 . In scientific notation, it is written as 2.1493903 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 21493902 positive integers (up to 21493903) that are relatively prime to 21493903.
21493903 has 2 divisors, whose sum is 21493904
The reverse of 21493903 is 30939412
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million four hundred ninety-three thousand nine hundred three
Scientific notation
2.1493903 × 10^7
Engineering notation
2.1493903 × 10^6
Prime Factorization
21493903
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21493903
Product of the distinct prime numbers
The prime factorization of 21493903 is 21493903.
Since it has a total of 1 prime factors.
3 , 7 , 36 , 86 , 166 , 14 , 3206 , 8955 , 89150 , 51162 , 221149 , 244600 , 2720099 , 5163701 , 6218052 , 56863763 , 122492351 , 848682742 , 9150657868 , 9018241006
n×2
42987806
n×3
64481709
n×4
85975612
n×5
107469515
n÷2
10746951.5
n÷3
7164634.3333333
n÷3
5373475.75
n÷5
4298780.6
n2
461987866173409
n3
9.9299223827082E+21
n4
2.1343278849146E+29
n5
4.587503652855E+36
2 √n
4636.1517447124
3 √n
278.03860116471
4 √n
68.089292438036
5 √n
29.272718536316
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21493904
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10746952
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4636.1518525605
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999069504
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21493903 can be divided by 2 positive divisors.
The sum of these divisors (counting 21493903) is 21493904, the average is 10746952.
Base
System
Value
2
Binary
1010001111111100010001111
3
Ternary
1111110000002111
4
Quaternary
1101333202033
5
Quinary
21000301103
6
Senary
2044404451
8
Octal
121774217
10
Decimal
21493903
12
Duodecimal
7246727
16
Hexadecimal
147f88f
20
Vigesimal
6e6ef3
36
Base36
csosv
md5
8337579e2dd8186a914fc5c90ec665ff
sha1
75931d9cf1652c831680db8f06d009d3cd8e1988
sha256
393b1e45efe4e7045820b4db5479095dcd0dd8e39849fe1b36f0c3e1d8ee2833
sha512
285fedc9e1017603a8a2caeac833b67d936c9ef03b1bd86c4f17ee5cb813d4cf48f9f7bca93af73274aef77efba79d0d0bd1368f7fe647d730ffe9c28b2d0876
ripemd-160
f9022857e86b6b4f5b2e2abbf3bd2bd9c7a40fdd
Diameter
42987806
Circumference
135050175.52354
Area
1.451377686418E+15
Volume
4.1594361610977E+22
Surface area
5.805510745672E+15
Circumference
135050175.52354
Perimeter
85975612
Area
461987866173409
Diagonal
30396969.130932
Surface area
2771927197040454
Volume
9.9299223827082E+21
Space diagonal
37228532.048957
Perimeter
64481709
Area
2.0004661417317E+14
Altitude
18614266.024479
Surface area
2.0004661417317E+14
Volume
1.1702525755782E+21
Height
10132323.043644