21127986 is an even 8-digits composite number following 21127985
and preceding 21127987 . In scientific notation, it is written as 2.1127986 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 6402240 positive integers (up to 21127986) that are relatively prime to 21127986.
21127986 has 8 divisors, whose sum is 31799580
The reverse of 21127986 is 68972112
Previous prime number is 297
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million one hundred twenty-seven thousand nine hundred eighty-six
Scientific notation
2.1127986 × 10^7
Engineering notation
2.1127986 × 10^6
Prime Factorization
2 × 297 × 35569
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21127986
Product of the distinct prime numbers
The prime factorization of 21127986 is 2 × 297 × 35569.
Since it has a total of 3 prime factors.
8 , 2 , 47 , 70 , 83 , 32 , 8837 , 858 , 42662 , 37285 , 281014 , 342820 , 8047555 , 9909651 , 39073212 , 77677799 , 900271696 , 255659771 , 4288603681 , 6598909589
n×2
42255972
n×3
63383958
n×4
84511944
n×5
105639930
n÷2
10563993
n÷3
7042662
n÷3
5281996.5
n÷5
4225597.2
n2
446391792416196
n3
9.4313595406843E+21
n4
1.9926563233654E+29
n5
4.2100814902877E+36
2 √n
4596.5189002113
3 √n
276.45176486052
4 √n
67.797631966104
5 √n
29.172363746309
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21127985
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21127986 can be divided by 8 positive divisors.
The sum of these divisors (counting 21127986) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100110001100110010
3
Ternary
1110202102011000
4
Quaternary
1100212030302
5
Quinary
20402043421
6
Senary
2032502430
8
Octal
120461462
10
Decimal
21127986
12
Duodecimal
70aaa16
16
Hexadecimal
1426332
20
Vigesimal
6c0jj6
36
Base36
ckugi
md5
c75397a099ee65bf10a6953827522ac2
sha1
065df6a5dc8d322cd3c5fe1f6e742e1026633578
sha256
1707bda9da3cbd5d252c96308a4cb26bcb6e5f05b124fa2f6a81b1ccec3abb79
sha512
ade446c8080f8df0bd5f959dc52a7304217a59b7610f3fdab0ef8a52d86f2334b5ef7bfa5be7ef486bebefff8066b1c61cf29e2cf2f429a8fe1e67872cbbe2e0
ripemd-160
ef20f87f4a50b71e1cf4b32ee820174f74556160
Diameter
42255972
Circumference
132751051.2055
Area
1.4023811756775E+15
Volume
3.9505986461837E+22
Surface area
5.60952470271E+15
Circumference
132751051.2055
Perimeter
84511944
Area
446391792416196
Diagonal
29879484.346829
Surface area
2678350754497176
Volume
9.4313595406843E+21
Space diagonal
36594745.213604
Perimeter
63383958
Area
1.9329331613665E+14
Altitude
18297372.606802
Surface area
1.9329331613665E+14
Volume
1.1114963811711E+21
Height
9959828.1156096