21509312 is an even 8-digits composite number following 21509311
and preceding 21509313 . In scientific notation, it is written as 2.1509312 × 10^7.
The sum of its digits is 23. It has a total of 8 prime factors and 28 positive divisors.
There are 9776640 positive integers (up to 21509312) that are relatively prime to 21509312.
21509312 has 28 divisors, whose sum is 46564296
The reverse of 21509312 is 21390512
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million five hundred nine thousand three hundred twelve
Scientific notation
2.1509312 × 10^7
Engineering notation
2.1509312 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 11 × 30553
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
672166
Product of the distinct prime numbers
The prime factorization of 21509312 is 2 × 2 × 2 × 2 × 2 × 2 × 11 × 30553.
Since it has a total of 8 prime factors.
9 , 4 , 12 , 32 , 99 , 737 , 3270 , 5835 , 90090 , 41741 , 198623 , 706690 , 6469024 , 9851446 , 93439216 , 38725462 , 218254016 , 368504175 , 5321326368 , 2208134308
n×2
43018624
n×3
64527936
n×4
86037248
n×5
107546560
n÷2
10754656
n÷3
7169770.6666667
n÷3
5377328
n÷5
4301862.4
n2
462650502713344
n3
9.9512940098182E+21
n4
2.1404548766091E+29
n5
4.6039711762907E+36
2 √n
4637.8132778282
3 √n
278.10502734159
4 √n
68.101492478713
5 √n
29.27691446135
1 , 2 , 4 , 8 , 11 , 16 , 22 , 32 , 44 , 64 , 88 , 176 , 352 , 704 , 30553 , 61106 , 122212 , 244424 , 336083 , 488848 , 672166 , 977696 , 1344332 , 1955392 , 2688664 , 5377328 , 10754656 , 21509312
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21509311
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21509312 can be divided by 28 positive divisors.
The sum of these divisors (counting 21509312) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
1010010000011010011000000
3
Ternary
1111110210020012
4
Quaternary
1102003103000
5
Quinary
21001244222
6
Senary
2045004052
8
Octal
122032300
10
Decimal
21509312
12
Duodecimal
7253628
16
Hexadecimal
14834c0
20
Vigesimal
6e8d5c
36
Base36
ct0ow
md5
3a3b7cec32a807434a64ed3ff45ed5c3
sha1
1c4d23375b898b50f3d46b389d4447449f1a412a
sha256
5989a33e2e2d329b2dd521200b483d63d06e66f03b536d9e5e4ffe0095e33348
sha512
5e49899013f3e275d6aee35d968eda179ac5da7d1874a498b1067734eab1951b7fa58a3f503f5f3a402d867ed2ed551660c3323c2ad8765898ff0033ccc86207
ripemd-160
f4ce0b233fb9fcca352e4d6f3f8f7159a230d7da
Diameter
43018624
Circumference
135146993.12594
Area
1.4534594205039E+15
Volume
4.1683882873276E+22
Surface area
5.8138376820155E+15
Circumference
135146993.12594
Perimeter
86037248
Area
462650502713344
Diagonal
30418760.747714
Surface area
2775903016280064
Volume
9.9512940098182E+21
Space diagonal
37255221.219851
Perimeter
64527936
Area
2.003335442117E+14
Altitude
18627610.609925
Surface area
2.003335442117E+14
Volume
1.1727712459872E+21
Height
10139586.915905