21000258 is an even 8-digits composite number following 21000257
and preceding 21000259 . In scientific notation, it is written as 2.1000258 × 10^7.
The sum of its digits is 18. It has a total of 5 prime factors and 32 positive divisors.
There are 6756480 positive integers (up to 21000258) that are relatively prime to 21000258.
21000258 has 32 divisors, whose sum is 36241920
The reverse of 21000258 is 85200012
Previous prime number is 241
Is Prime? no
Number parity even
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million two hundred fifty-eight
Scientific notation
2.1000258 × 10^7
Engineering notation
2.1000258 × 10^6
Prime Factorization
2 × 9 × 103 × 241 × 47
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21000258
Product of the distinct prime numbers
The prime factorization of 21000258 is 2 × 9 × 103 × 241 × 47.
Since it has a total of 5 prime factors.
6 , 7 , 15 , 27 , 871 , 428 , 5492 , 1691 , 11947 , 95960 , 31255 , 523111 , 7326714 , 46224 , 16587389 , 59661462 , 539794306 , 955349924 , 6097651342 , 457416129
n×2
42000516
n×3
63000774
n×4
84001032
n×5
105001290
n÷2
10500129
n÷3
7000086
n÷3
5250064.5
n÷5
4200051.6
n2
441010836066564
n3
9.2613413381935E+21
n4
1.9449055752813E+29
n5
4.0843518866546E+36
2 √n
4582.6038449772
3 √n
275.89354747862
4 √n
67.694932195676
5 √n
29.137006179021
1 , 2 , 9 , 18 , 47 , 94 , 103 , 206 , 241 , 423 , 482 , 846 , 927 , 1854 , 2169 , 4338 , 4841 , 9682 , 11327 , 22654 , 24823 , 43569 , 49646 , 87138 , 101943 , 203886 , 223407 , 446814 , 1166681 , 2333362 , 10500129 , 21000258
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21000257
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21000258 can be divided by 32 positive divisors.
The sum of these divisors (counting 21000258) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000000111000001000010
3
Ternary
1110111220221100
4
Quaternary
1100013001002
5
Quinary
20334002013
6
Senary
2030035230
8
Octal
120070102
10
Decimal
21000258
12
Duodecimal
7048b16
16
Hexadecimal
1407042
20
Vigesimal
6b50ci
36
Base36
ci3wi
md5
75ccd30b26ebdcde0f7e974d703ab210
sha1
611185fb1760d85db02db8135a70528255bb529f
sha256
afd8120cf99a85f5662d67d0ad8c766e426ebe5e9f4393cd96905ee38847855e
sha512
5b5c9bb58a60eb3bf15675a910b783708394330fe91ab88b8545075f029e7b5309841e3a4cf02163412452641233db3ebcafd1ba3fbe172f1246965c8bf9cd3f
ripemd-160
43b32b51cd092ffe5b0e7c8d994e68ab80554296
Diameter
42000516
Circumference
131948512.51258
Area
1.3854764027402E+15
Volume
3.8793815880608E+22
Surface area
5.5419056109608E+15
Circumference
131948512.51258
Perimeter
84001032
Area
441010836066564
Diagonal
29698849.676934
Surface area
2646065016399384
Volume
9.2613413381935E+21
Space diagonal
36373513.828055
Perimeter
63000774
Area
1.9096329368893E+14
Altitude
18186756.914027
Surface area
1.9096329368893E+14
Volume
1.0914595438533E+21
Height
9899616.558978