21568493 is an odd 8-digits prime number following 21568492
and preceding 21568494 . In scientific notation, it is written as 2.1568493 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 21568492 positive integers (up to 21568493) that are relatively prime to 21568493.
21568493 has 2 divisors, whose sum is 21568494
The reverse of 21568493 is 39486512
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million five hundred sixty-eight thousand four hundred ninety-three
Scientific notation
2.1568493 × 10^7
Engineering notation
2.1568493 × 10^6
Prime Factorization
21568493
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21568493
Product of the distinct prime numbers
The prime factorization of 21568493 is 21568493.
Since it has a total of 1 prime factors.
3 , 4 , 42 , 44 , 86 , 313 , 3954 , 6837 , 35787 , 53894 , 256584 , 479514 , 4489696 , 1882824 , 15056287 , 13969463 , 327456188 , 833869075 , 7698358442 , 1514496362
n×2
43136986
n×3
64705479
n×4
86273972
n×5
107842465
n÷2
10784246.5
n÷3
7189497.6666667
n÷3
5392123.25
n÷5
4313698.6
n2
465199890291049
n3
1.0033660577343E+22
n4
2.164109379268E+29
n5
4.6676577997977E+36
2 √n
4644.1891649673
3 √n
278.35985436586
4 √n
68.148288056028
5 √n
29.293007336256
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21568494
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10784247
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4644.1892726288
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999072722
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21568493 can be divided by 2 positive divisors.
The sum of these divisors (counting 21568493) is 21568494, the average is 10784247.
Base
System
Value
2
Binary
1010010010001101111101101
3
Ternary
1111120210102002
4
Quaternary
1102101233231
5
Quinary
21010142433
6
Senary
2050142045
8
Octal
122215755
10
Decimal
21568493
12
Duodecimal
7281925
16
Hexadecimal
1491bed
20
Vigesimal
6eg14d
36
Base36
cuact
md5
0d21a0d48cc0117e8522782377a4909d
sha1
358f5a01b35b8d799b7f2c9b4d318d6d0753addd
sha256
f4a1f120e70a31e60465fae38da17ffe820d905f4b3255e3ec6d150738c33ce0
sha512
707925e9adb0a04af6c29c64233a02ed4861efb240403dd09985734981a3fec756c44d901a912c909e2461c1ddbfb16892b29482a0d6b7a1b5e23c05a72fbcdf
ripemd-160
688b2e08dc164b3568271823b8e127b84057f0b2
Diameter
43136986
Circumference
135518838.31561
Area
1.4614685577891E+15
Volume
4.2028899144527E+22
Surface area
5.8458742311565E+15
Circumference
135518838.31561
Perimeter
86273972
Area
465199890291049
Diagonal
30502455.320549
Surface area
2791199341746294
Volume
1.0033660577343E+22
Space diagonal
37357725.718694
Perimeter
64705479
Area
2.0143746141489E+14
Altitude
18678862.859347
Surface area
2.0143746141489E+14
Volume
1.1824782390606E+21
Height
10167485.10685