21131249 is an odd 8-digits composite number following 21131248
and preceding 21131250 . In scientific notation, it is written as 2.1131249 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20019060 positive integers (up to 21131249) that are relatively prime to 21131249.
21131249 has 4 divisors, whose sum is 22243440
The reverse of 21131249 is 94213112
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million one hundred thirty-one thousand two hundred forty-nine
Scientific notation
2.1131249 × 10^7
Engineering notation
2.1131249 × 10^6
Prime Factorization
19 × 1112171
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21131249
Product of the distinct prime numbers
The prime factorization of 21131249 is 19 × 1112171.
Since it has a total of 2 prime factors.
7 , 1 , 79 , 67 , 326 , 978 , 4711 , 3869 , 97833 , 96612 , 535724 , 533752 , 7163590 , 5952680 , 40395552 , 91531122 , 600513123 , 139888333 , 7078365466 , 759073416
n×2
42262498
n×3
63393747
n×4
84524996
n×5
105656245
n÷2
10565624.5
n÷3
7043749.6666667
n÷3
5282812.25
n÷5
4226249.8
n2
446529684300001
n3
9.4357299448347E+21
n4
1.9938875896106E+29
n5
4.2133335134071E+36
2 √n
4596.8738290277
3 √n
276.46599583794
4 √n
67.800249476147
5 √n
29.17326476492
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
-21131248
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 21131249 can be divided by 4 positive divisors.
The sum of these divisors (counting 21131249) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100110111111110001
3
Ternary
1110202120121212
4
Quaternary
1100212333301
5
Quinary
20402144444
6
Senary
2032525505
8
Octal
120467761
10
Decimal
21131249
12
Duodecimal
70b0895
16
Hexadecimal
1426ff1
20
Vigesimal
6c1829
36
Base36
ckwz5
md5
d80b307aa577e7c4358bc411216dcd29
sha1
6fe6619996db57eb0a2e4e48a7fd73597947c272
sha256
d4b0c1362a9d596d991029cfd67f34dbe81720378bad0d6911ea70a0717d6af4
sha512
d921f0a16c95e9728765ce3353dbe377a25930844de67ecf29374ef4fb465c01e700d6cab0e6680232593caea551943519b7651a513accb1b4beb23cb4abb490
ripemd-160
26499ad2c1f66e2b4033c80397e1706591f7e893
Diameter
42262498
Circumference
132771553.23915
Area
1.4028143758067E+15
Volume
3.9524293167933E+22
Surface area
5.6112575032266E+15
Circumference
132771553.23915
Perimeter
84524996
Area
446529684300001
Diagonal
29884098.925683
Surface area
2679178105800006
Volume
9.4357299448347E+21
Space diagonal
36600396.895389
Perimeter
63393747
Area
1.9335302507382E+14
Altitude
18300198.447695
Surface area
1.9335302507382E+14
Volume
1.1120114382396E+21
Height
9961366.308561