21137531 is an odd 8-digits prime number following 21137530
and preceding 21137532 . In scientific notation, it is written as 2.1137531 × 10^7.
The sum of its digits is 23. It has a total of 1 prime factors and 2 positive divisors.
There are 21137530 positive integers (up to 21137531) that are relatively prime to 21137531.
21137531 has 2 divisors, whose sum is 21137532
The reverse of 21137531 is 13573112
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 23 Digital Root 5
Name
twenty-one million one hundred thirty-seven thousand five hundred thirty-one
Scientific notation
2.1137531 × 10^7
Engineering notation
2.1137531 × 10^6
Prime Factorization
21137531
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21137531 Product of the distinct prime numbers
The prime factorization of 21137531 is 21137531.
Since it has a total of 1 prime factors.
7 , 9 , 81 , 82 , 877 , 606 , 9460 , 4438 , 57211 , 98012 , 997592 , 217412 , 8547460 , 4206853 , 41178011 , 58929910 , 620248074 , 243050105 , 8011664563 , 407522043
n×2
42275062
n×3
63412593
n×4
84550124
n×5
105687655
n÷2
10568765.5
n÷3
7045843.6666667
n÷3
5284382.75
n÷5
4227506.2
n2
446795216775961
n3
9.4441477452536E+21
n4
1.9962596573388E+29
n5
4.2196000391048E+36
2 √n4597.5570687051
3 √n276.49338950675
4 √n67.805287911085
5 √n29.17499911257
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21137532 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10568766 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4597.5571774585 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999053816 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21137531 can be divided by 2 positive divisors.
The sum of these divisors (counting 21137531) is 21137532, the average is 10568766.
Base
System
Value
2
Binary
1010000101000100001111011
3
Ternary
1110202220020112
4
Quaternary
1100220201323
5
Quinary
20402400111
6
Senary
2033014535
8
Octal
120504173
10
Decimal
21137531
12
Duodecimal
70b444b
16
Hexadecimal
142887b
20
Vigesimal
6c23gb
36
Base36
cl1tn
md5
f6383f031600dc42d278c927ece2bd40
sha1
57c0b2896001d233711223d452765b6ffbf598a8
sha256
0d3c3520fa58f7730957c98e9f83b9873985707006b154ae40795a9fc63c7cd5
sha512
71c26ba3bffc1cc0dfa0ccdbfcd693057dd9877df375af92f19d978de7597a868498d710ffc0bfce1024c1ddd89a54779098066ff5a164d67062fda772dff0b2
ripemd-160
4b4f5b15d527384843f1ac4e872e731d05c253e5
Diameter
42275062
Circumference
132811024.20925
Area
1.4036485706824E+15
Volume
3.9559553567874E+22
Surface area
5.6145942827297E+15
Circumference
132811024.20925
Perimeter
84550124
Area
446795216775961
Diagonal
29892983.015282
Surface area
2680771300655766
Volume
9.4441477452536E+21
Space diagonal
36611277.638562
Perimeter
63412593
Area
1.9346800400868E+14
Altitude
18305638.819281
Surface area
1.9346800400868E+14
Volume
1.1130034855327E+21
Height
9964327.6717606