21131258 is an even 8-digits composite number following 21131257
and preceding 21131259 . In scientific notation, it is written as 2.1131258 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 10410816 positive integers (up to 21131258) that are relatively prime to 21131258.
21131258 has 16 divisors, whose sum is 32165640
The reverse of 21131258 is 85213112
Previous prime number is 389
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million one hundred thirty-one thousand two hundred fifty-eight
Scientific notation
2.1131258 × 10^7
Engineering notation
2.1131258 × 10^6
Prime Factorization
2 × 157 × 389 × 173
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21131258
Product of the distinct prime numbers
The prime factorization of 21131258 is 2 × 157 × 389 × 173.
Since it has a total of 4 prime factors.
4 , 6 , 89 , 50 , 119 , 387 , 9532 , 8390 , 71475 , 4418 , 646406 , 720430 , 1447845 , 8888113 , 67161896 , 12726310 , 920431237 , 212172671 , 6693139646 , 5160076469
n×2
42262516
n×3
63393774
n×4
84525032
n×5
105656290
n÷2
10565629
n÷3
7043752.6666667
n÷3
5282814.5
n÷5
4226251.6
n2
446530064662564
n3
9.4357420011413E+21
n4
1.9938909864755E+29
n5
4.2133424859089E+36
2 √n
4596.8748079538
3 √n
276.46603508776
4 √n
67.800256695338
5 √n
29.173267249954
1 , 2 , 157 , 173 , 314 , 346 , 389 , 778 , 27161 , 54322 , 61073 , 67297 , 122146 , 134594 , 10565629 , 21131258
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21131257
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21131258 can be divided by 16 positive divisors.
The sum of these divisors (counting 21131258) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000100110111111111010
3
Ternary
1110202120122012
4
Quaternary
1100212333322
5
Quinary
20402200013
6
Senary
2032525522
8
Octal
120467772
10
Decimal
21131258
12
Duodecimal
70b08a2
16
Hexadecimal
1426ffa
20
Vigesimal
6c182i
36
Base36
ckwze
md5
6ccdb7f8b386d712d01d37cad7aac831
sha1
e070ec7bb01b057f674ed2fa01cc9ae3846a8932
sha256
2d52f251560a7f8c792574709ad539feb516e91fa835938d03570d69a710150b
sha512
7d1c317bd602fd00120e772017356fd17931c9b1cbdf7755de4cfd14897bb6c1eb80abd6523e4c1512ba8ba46773ff61cecf5ed9a387496e189dbbc8003e82ab
ripemd-160
6e10cb6c626c164c05b2bf82261f3e41735742dc
Diameter
42262516
Circumference
132771609.78782
Area
1.4028155707509E+15
Volume
3.9524343669272E+22
Surface area
5.6112622830035E+15
Circumference
132771609.78782
Perimeter
84525032
Area
446530064662564
Diagonal
29884111.653605
Surface area
2679180387975384
Volume
9.4357420011413E+21
Space diagonal
36600412.483846
Perimeter
63393774
Area
1.9335318977564E+14
Altitude
18300206.241923
Surface area
1.9335318977564E+14
Volume
1.112012859089E+21
Height
9961370.5512017