21131471 is an odd 8-digits composite number following 21131470
and preceding 21131472 . In scientific notation, it is written as 2.1131471 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 20666880 positive integers (up to 21131471) that are relatively prime to 21131471.
21131471 has 8 divisors, whose sum is 21598704
The reverse of 21131471 is 17413112
Previous prime number is 691
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million one hundred thirty-one thousand four hundred seventy-one
Scientific notation
2.1131471 × 10^7
Engineering notation
2.1131471 × 10^6
Prime Factorization
53 × 691 × 577
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21131471
Product of the distinct prime numbers
The prime factorization of 21131471 is 53 × 691 × 577.
Since it has a total of 3 prime factors.
10 , 2 , 11 , 7 , 997 , 64 , 4261 , 6734 , 53108 , 12822 , 321666 , 714818 , 1855576 , 7885197 , 48815221 , 30476606 , 117057324 , 817375351 , 4356703744 , 7237931612
n×2
42262942
n×3
63394413
n×4
84525884
n×5
105657355
n÷2
10565735.5
n÷3
7043823.6666667
n÷3
5282867.75
n÷5
4226294.2
n2
446539066623841
n3
9.4360273367288E+21
n4
1.9939713802129E+29
n5
4.2135548395799E+36
2 √n
4596.8979758093
3 √n
276.46696399708
4 √n
67.800427548868
5 √n
29.173326062173
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
-21131470
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 21131471 can be divided by 8 positive divisors.
The sum of these divisors (counting 21131471) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100111000011001111
3
Ternary
1110202120221002
4
Quaternary
1100213003033
5
Quinary
20402201341
6
Senary
2032530515
8
Octal
120470317
10
Decimal
21131471
12
Duodecimal
70b0a3b
16
Hexadecimal
14270cf
20
Vigesimal
6c18db
36
Base36
ckx5b
md5
00d0dd81477f87183ae176efe5ca70ca
sha1
588f8cf4d699c7afbaad2a359cdf46cf49c45839
sha256
54bce5cafa42472a01e4082c66a33cd537f3a63c65385832d35e961c96368cfc
sha512
a6632ef3a5e502411564adeac7dec2f4abf9d367b1b65232b6e5fdd7efb4f515b2ac8d882817f4ee0d897b54a23fb2593f3eb507d94ea4d7f97cda1e528a5d5a
ripemd-160
852d0e049ed1cee7c2bba1cdcab159d2f3a0e5b2
Diameter
42262942
Circumference
132772948.10629
Area
1.4028438512463E+15
Volume
3.9525538880186E+22
Surface area
5.6113754049852E+15
Circumference
132772948.10629
Perimeter
84525884
Area
446539066623841
Diagonal
29884412.881094
Surface area
2679234399743046
Volume
9.4360273367288E+21
Space diagonal
36600781.410668
Perimeter
63394413
Area
1.9335708773922E+14
Altitude
18300390.705334
Surface area
1.9335708773922E+14
Volume
1.1120464862104E+21
Height
9961470.9603646