21136421 is an odd 8-digits composite number following 21136420
and preceding 21136422 . In scientific notation, it is written as 2.1136421 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 21061452 positive integers (up to 21136421) that are relatively prime to 21136421.
21136421 has 4 divisors, whose sum is 21211392
The reverse of 21136421 is 12463112
Previous prime number is 283
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million one hundred thirty-six thousand four hundred twenty-one
Scientific notation
2.1136421 × 10^7
Engineering notation
2.1136421 × 10^6
Prime Factorization
283 × 74687
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21136421
Product of the distinct prime numbers
The prime factorization of 21136421 is 283 × 74687.
Since it has a total of 2 prime factors.
3 , 6 , 46 , 31 , 357 , 711 , 4989 , 7745 , 67767 , 11941 , 49871 , 970489 , 2843762 , 2186786 , 62400027 , 26879397 , 156375890 , 663161346 , 1812214193 , 6108107989
n×2
42272842
n×3
63409263
n×4
84545684
n×5
105682105
n÷2
10568210.5
n÷3
7045473.6666667
n÷3
5284105.25
n÷5
4227284.2
n2
446748292689241
n3
9.442659995311E+21
n4
1.9958403702075E+29
n5
4.2184922313502E+36
2 √n
4597.4363508373
3 √n
276.48854956849
4 √n
67.804397724906
5 √n
29.174692691453
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
-21136420
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 21136421 can be divided by 4 positive divisors.
The sum of these divisors (counting 21136421) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000101000010000100101
3
Ternary
1110202211201102
4
Quaternary
1100220100211
5
Quinary
20402331141
6
Senary
2033005445
8
Octal
120502045
10
Decimal
21136421
12
Duodecimal
70b3885
16
Hexadecimal
1428425
20
Vigesimal
6c2111
36
Base36
cl0yt
md5
0af03415504873defa1993b09f273bce
sha1
2d60f2fb483ff640bbad0462f4e2036e1fdce330
sha256
17fdcb8058b6d9760e466611c0d90615021513f21bccc0390f9f637b69187cad
sha512
3989be85be02f815722c42d1d4309f68e656d91f0508561e0f96c467412ee5eac934986ae7f793c29ad7d59dd14b51b5f6b62df65801e5ddb6419d1d8429948d
ripemd-160
02963f043a2fb4bbf03f45ea97190c3cdb56f537
Diameter
42272842
Circumference
132804049.87356
Area
1.4035011543163E+15
Volume
3.9553321695487E+22
Surface area
5.6140046172652E+15
Circumference
132804049.87356
Perimeter
84545684
Area
446748292689241
Diagonal
29891413.238227
Surface area
2680489756135446
Volume
9.442659995311E+21
Space diagonal
36609355.062166
Perimeter
63409263
Area
1.934476852831E+14
Altitude
18304677.531083
Surface area
1.934476852831E+14
Volume
1.1128281525206E+21
Height
9963804.4127425