21509317 is an odd 8-digits composite number following 21509316
and preceding 21509318 . In scientific notation, it is written as 2.1509317 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 21377196 positive integers (up to 21509317) that are relatively prime to 21509317.
21509317 has 4 divisors, whose sum is 21641440
The reverse of 21509317 is 71390512
Previous prime number is 163
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million five hundred nine thousand three hundred seventeen
Scientific notation
2.1509317 × 10^7
Engineering notation
2.1509317 × 10^6
Prime Factorization
163 × 131959
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21509317
Product of the distinct prime numbers
The prime factorization of 21509317 is 163 × 131959.
Since it has a total of 2 prime factors.
6 , 9 , 80 , 100 , 83 , 600 , 8309 , 4198 , 116 , 46581 , 869856 , 781482 , 3165912 , 1505075 , 92016542 , 91843525 , 652149288 , 858169821 , 6991196750 , 7485571267
n×2
43018634
n×3
64527951
n×4
86037268
n×5
107546585
n÷2
10754658.5
n÷3
7169772.3333333
n÷3
5377329.25
n÷5
4301863.4
n2
462650717806489
n3
9.9513009495773E+21
n4
2.1404568668686E+29
n5
4.6039765274303E+36
2 √n
4637.8138168754
3 √n
278.10504889078
4 √n
68.101496436388
5 √n
29.276915822477
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
-21509316
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 21509317 can be divided by 4 positive divisors.
The sum of these divisors (counting 21509317) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010000011010011000101
3
Ternary
1111110210020101
4
Quaternary
1102003103011
5
Quinary
21001244232
6
Senary
2045004101
8
Octal
122032305
10
Decimal
21509317
12
Duodecimal
7253631
16
Hexadecimal
14834c5
20
Vigesimal
6e8d5h
36
Base36
ct0p1
md5
d66be4f07820712b910c19bdb30677a6
sha1
57f4958509834747d21612d29044a516fabc3e23
sha256
51c43b6146ef22a3c9d429a3174316a1ee5ef43cac73507c8a5bdfb8601692e7
sha512
702103350c09ba7cf750140be376c150cd5af8144dfbda3a92b74f4afd16728d23a1edd3b6b21ddd44e197ecae3f4ef6c9132cecc4004f1ab3b5cec9799c2367
ripemd-160
a4603470ce3bcd67287bfa277559aa70655bb114
Diameter
43018634
Circumference
135147024.54187
Area
1.4534600962389E+15
Volume
4.1683911942471E+22
Surface area
5.8138403849556E+15
Circumference
135147024.54187
Perimeter
86037268
Area
462650717806489
Diagonal
30418767.818782
Surface area
2775904306838934
Volume
9.9513009495773E+21
Space diagonal
37255229.880105
Perimeter
64527951
Area
2.0033363734976E+14
Altitude
18627614.940052
Surface area
2.0033363734976E+14
Volume
1.1727720638457E+21
Height
10139589.272927