21371661 is an odd 8-digits composite number following 21371660
and preceding 21371662 . In scientific notation, it is written as 2.1371661 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 14247756 positive integers (up to 21371661) that are relatively prime to 21371661.
21371661 has 8 divisors, whose sum is 31661760
The reverse of 21371661 is 16617312
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million three hundred seventy-one thousand six hundred sixty-one
Scientific notation
2.1371661 × 10^7
Engineering notation
2.1371661 × 10^6
Prime Factorization
3 × 9 × 791543
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21371661
Product of the distinct prime numbers
The prime factorization of 21371661 is 3 × 9 × 791543.
Since it has a total of 3 prime factors.
4 , 3 , 17 , 27 , 205 , 630 , 6439 , 792 , 6291 , 16123 , 818426 , 181051 , 9030648 , 2529381 , 66036633 , 67939764 , 682542709 , 775379842 , 5927241448 , 6987788723
n×2
42743322
n×3
64114983
n×4
85486644
n×5
106858305
n÷2
10685830.5
n÷3
7123887
n÷3
5342915.25
n÷5
4274332.2
n2
456747893898921
n3
9.7614611508717E+21
n4
2.086186385811E+29
n5
4.4585268220368E+36
2 √n
4622.9493832401
3 √n
277.51050361995
4 √n
67.99227443791
5 √n
29.239346058518
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
-21371660
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 21371661 can be divided by 8 positive divisors.
The sum of these divisors (counting 21371661) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001100001101100001101
3
Ternary
1111012210102000
4
Quaternary
1101201230031
5
Quinary
20432343121
6
Senary
2042022513
8
Octal
121415415
10
Decimal
21371661
12
Duodecimal
71a7a39
16
Hexadecimal
1461b0d
20
Vigesimal
6db931
36
Base36
cq2h9
md5
396c1b7370a507b6d7319d7ebb57004b
sha1
ef79bea1dc35fea1838445992462897dcd37bb69
sha256
01a009a7da1a0d1eb27add93f8343268c1ed4a7daac71e80882c0b467230f6d4
sha512
683c38b724d51bbe385b7e5455cfbd6bc062e1399ace6eec874b7516898e0315a6c01f97d8d7522723dfdea34e90309a468266530eda231bd07c971267a356f6
ripemd-160
de032634ea02f84dcec81fa1278c6b2ec9117125
Diameter
42743322
Circumference
134282106.38522
Area
1.4349158280155E+15
Volume
4.0888712853174E+22
Surface area
5.7396633120618E+15
Circumference
134282106.38522
Perimeter
85486644
Area
456747893898921
Diagonal
30224092.83664
Surface area
2740487363393526
Volume
9.7614611508717E+21
Space diagonal
37016802.694138
Perimeter
64114983
Area
1.9777763962075E+14
Altitude
18508401.347069
Surface area
1.9777763962075E+14
Volume
1.1503992290117E+21
Height
10074697.612213