21531671 is an odd 8-digits composite number following 21531670
and preceding 21531672 . In scientific notation, it is written as 2.1531671 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 18455712 positive integers (up to 21531671) that are relatively prime to 21531671.
21531671 has 4 divisors, whose sum is 24607632
The reverse of 21531671 is 17613512
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million five hundred thirty-one thousand six hundred seventy-one
Scientific notation
2.1531671 × 10^7
Engineering notation
2.1531671 × 10^6
Prime Factorization
7 × 3075953
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21531671
Product of the distinct prime numbers
The prime factorization of 21531671 is 7 × 3075953.
Since it has a total of 2 prime factors.
7 , 7 , 56 , 60 , 902 , 282 , 6121 , 1472 , 34678 , 60704 , 923299 , 847792 , 827175 , 1386720 , 26086007 , 89553388 , 9845908 , 188161072 , 8282837734 , 5686743459
n×2
43063342
n×3
64595013
n×4
86126684
n×5
107658355
n÷2
10765835.5
n÷3
7177223.6666667
n÷3
5382917.75
n÷5
4306334.2
n2
463612856052241
n3
9.9823594878872E+21
n4
2.1493688029692E+29
n5
4.6279501923196E+36
2 √n
4640.2231627369
3 √n
278.20135766516
4 √n
68.119183514902
5 √n
29.282998621694
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
-21531670
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 21531671 can be divided by 4 positive divisors.
The sum of these divisors (counting 21531671) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001000110000010111
3
Ternary
1111111220220022
4
Quaternary
1102020300113
5
Quinary
21003003141
6
Senary
2045255355
8
Octal
122106027
10
Decimal
21531671
12
Duodecimal
726455b
16
Hexadecimal
1488c17
20
Vigesimal
6eb93b
36
Base36
cthxz
md5
593765581fd81bb7e068ecdd5e4fad7d
sha1
3384b40e98db042cd232cc5580052c8459cc27a9
sha256
79251828aa2d048827a6f874eda2a01e778c72f579a8623ffd0b6a9dba8c29cc
sha512
86407c5486bae055e183028422446aeb65e455a208375953b081e02288582385ca8df27615e033b2b2be78fa1f6337ffeed81ea7f544a2f4a7e2ef583c5ac7e8
ripemd-160
5c7077dbeefbff30df502d17d98aebe53a513cca
Diameter
43063342
Circumference
135287478.86622
Area
1.4564827426835E+15
Volume
4.1814009643518E+22
Surface area
5.825930970734E+15
Circumference
135287478.86622
Perimeter
86126684
Area
463612856052241
Diagonal
30450381.148755
Surface area
2781677136313446
Volume
9.9823594878872E+21
Space diagonal
37293948.143857
Perimeter
64595013
Area
2.0075025543115E+14
Altitude
18646974.071929
Surface area
2.0075025543115E+14
Volume
1.1764323476878E+21
Height
10150127.049585