21131858 is an even 8-digits composite number following 21131857
and preceding 21131859 . In scientific notation, it is written as 2.1131858 × 10^7.
The sum of its digits is 29. It has a total of 5 prime factors and 32 positive divisors.
There are 9264400 positive integers (up to 21131858) that are relatively prime to 21131858.
21131858 has 32 divisors, whose sum is 35831808
The reverse of 21131858 is 85813112
Previous prime number is 107
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million one hundred thirty-one thousand eight hundred fifty-eight
Scientific notation
2.1131858 × 10^7
Engineering notation
2.1131858 × 10^6
Prime Factorization
2 × 11 × 191 × 107 × 47
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21131858
Product of the distinct prime numbers
The prime factorization of 21131858 is 2 × 11 × 191 × 107 × 47.
Since it has a total of 5 prime factors.
9 , 2 , 52 , 17 , 322 , 626 , 11 , 8246 , 52640 , 20534 , 54754 , 841226 , 7772280 , 3499698 , 47342998 , 89339632 , 480199568 , 773116260 , 2209645807 , 1083741284
n×2
42263716
n×3
63395574
n×4
84527432
n×5
105659290
n÷2
10565929
n÷3
7043952.6666667
n÷3
5282964.5
n÷5
4226371.6
n2
446555422532164
n3
9.4365457780797E+21
n4
1.9941174539288E+29
n5
4.2139406871745E+36
2 √n
4596.94006922
3 √n
276.46865171777
4 √n
67.800737969582
5 √n
29.173432916963
1 , 2 , 11 , 22 , 47 , 94 , 107 , 191 , 214 , 382 , 517 , 1034 , 1177 , 2101 , 2354 , 4202 , 5029 , 8977 , 10058 , 17954 , 20437 , 40874 , 55319 , 98747 , 110638 , 197494 , 224807 , 449614 , 960539 , 1921078 , 10565929 , 21131858
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
-21131857
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 21131858 can be divided by 32 positive divisors.
The sum of these divisors (counting 21131858) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000100111001001010010
3
Ternary
1110202121110102
4
Quaternary
1100213021102
5
Quinary
20402204413
6
Senary
2032532402
8
Octal
120471122
10
Decimal
21131858
12
Duodecimal
70b1102
16
Hexadecimal
1427252
20
Vigesimal
6c19ci
36
Base36
ckxg2
md5
821844874058be10f19c3a0138169107
sha1
8ea39ce4328e5aa8bbc9991ccd660a7bf3ed5201
sha256
05179dbc42f85a93fd16ce318bf0fd5d19a77223ce9451c33785b46019f158b3
sha512
affea6d511f05fb9b73e9220738a09aa9cda07beeefb1d2bd0d99e508af68fe7613ed107e8d2f8d9986af949202cc0c0af4d402f48d42f0a6a5fc315367f05ad
ripemd-160
fe03ba471de09e2122ab85b515e324f3cb2fd76f
Diameter
42263716
Circumference
132775379.69901
Area
1.4028952348477E+15
Volume
3.9527710522239E+22
Surface area
5.6115809393909E+15
Circumference
132775379.69901
Perimeter
84527432
Area
446555422532164
Diagonal
29884960.181742
Surface area
2679332535192984
Volume
9.4365457780797E+21
Space diagonal
36601451.714331
Perimeter
63395574
Area
1.9336417005527E+14
Altitude
18300725.857165
Surface area
1.9336417005527E+14
Volume
1.1121075851096E+21
Height
9961653.3939141