21306087 is an odd 8-digits composite number following 21306086
and preceding 21306088 . In scientific notation, it is written as 2.1306087 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 11923200 positive integers (up to 21306087) that are relatively prime to 21306087.
21306087 has 16 divisors, whose sum is 31217280
The reverse of 21306087 is 78060312
Previous prime number is 4579
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million three hundred six thousand eighty-seven
Scientific notation
2.1306087 × 10^7
Engineering notation
2.1306087 × 10^6
Prime Factorization
3 × 141 × 4579 × 11
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21306087
Product of the distinct prime numbers
The prime factorization of 21306087 is 3 × 141 × 4579 × 11.
Since it has a total of 4 prime factors.
9 , 2 , 81 , 33 , 266 , 251 , 8993 , 9466 , 24324 , 64250 , 136285 , 57471 , 1867040 , 1264228 , 77965065 , 18474004 , 167467934 , 649591519 , 1863719344 , 5134921669
n×2
42612174
n×3
63918261
n×4
85224348
n×5
106530435
n÷2
10653043.5
n÷3
7102029
n÷3
5326521.75
n÷5
4261217.4
n2
453949343251569
n3
9.6718842009108E+21
n4
2.0607000623853E+29
n5
4.3905454810087E+36
2 √n
4615.8517090565
3 √n
277.22638723588
4 √n
67.940059678047
5 √n
29.221381162044
1 , 3 , 11 , 33 , 141 , 423 , 1551 , 4579 , 4653 , 13737 , 50369 , 151107 , 645639 , 1936917 , 7102029 , 21306087
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21306086
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21306087 can be divided by 16 positive divisors.
The sum of these divisors (counting 21306087) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001010001101011100111
3
Ternary
1111002110110100
4
Quaternary
1101101223213
5
Quinary
20423243322
6
Senary
2040355143
8
Octal
121215347
10
Decimal
21306087
12
Duodecimal
7175ab3
16
Hexadecimal
1451ae7
20
Vigesimal
6d3547
36
Base36
convr
md5
dd8c1abe1360ef14d63df36dbc3a7a71
sha1
5d2adca962c7f75a25b9fe9264e901c137a25021
sha256
bcb1f4be1a29497cd68014f3b2a739681dd12e415a02d6eaccdd75bfc8f16ed1
sha512
4e61b521c312d3f55894b4cd4d76b23583f3da0f97c58f46308ecb68910fc153ccbe687069d88fb924f9a6c5a698620165d05069563da1ac958e3c6f17b3ee59
ripemd-160
fbe678be5e1bbfd6d9943ffef02013292020776b
Diameter
42612174
Circumference
133870092.79189
Area
1.426123921861E+15
Volume
4.0513493802603E+22
Surface area
5.7044956874442E+15
Circumference
133870092.79189
Perimeter
85224348
Area
453949343251569
Diagonal
30131357.196501
Surface area
2723696059509414
Volume
9.6718842009108E+21
Space diagonal
36903225.194483
Perimeter
63918261
Area
1.9656583164356E+14
Altitude
18451612.597241
Surface area
1.9656583164356E+14
Volume
1.1398424842192E+21
Height
10043785.732167