21082287 is an odd 8-digits composite number following 21082286
and preceding 21082288 . In scientific notation, it is written as 2.1082287 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 13576992 positive integers (up to 21082287) that are relatively prime to 21082287.
21082287 has 16 divisors, whose sum is 29082240
The reverse of 21082287 is 78228012
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million eighty-two thousand two hundred eighty-seven
Scientific notation
2.1082287 × 10^7
Engineering notation
2.1082287 × 10^6
Prime Factorization
3 × 53 × 67 × 1979
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21082287
Product of the distinct prime numbers
The prime factorization of 21082287 is 3 × 53 × 67 × 1979.
Since it has a total of 4 prime factors.
9 , 8 , 9 , 6 , 213 , 121 , 7719 , 2153 , 23175 , 4135 , 920794 , 481094 , 432511 , 8136031 , 31731476 , 9539179 , 796382023 , 18048636 , 4699643957 , 6297537941
n×2
42164574
n×3
63246861
n×4
84329148
n×5
105411435
n÷2
10541143.5
n÷3
7027429
n÷3
5270571.75
n÷5
4216457.4
n2
444462825150369
n3
9.3702928406509E+21
n4
1.9754720294065E+29
n5
4.164746828442E+36
2 √n
4591.5451647566
3 √n
276.2523028957
4 √n
67.760941291843
5 √n
29.159733079397
1 , 3 , 53 , 67 , 159 , 201 , 1979 , 3551 , 5937 , 10653 , 104887 , 132593 , 314661 , 397779 , 7027429 , 21082287
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
-21082286
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 21082287 can be divided by 16 positive divisors.
The sum of these divisors (counting 21082287) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011011000010101111
3
Ternary
1110200002110110
4
Quaternary
1100123002233
5
Quinary
20344113122
6
Senary
2031511103
8
Octal
120330257
10
Decimal
21082287
12
Duodecimal
7088493
16
Hexadecimal
141b0af
20
Vigesimal
6bf5e7
36
Base36
cjv73
md5
410c209ed556c7fd31923c1d93bff5b1
sha1
eb77e052c7a72f168940959d228278ea4ac58211
sha256
1f19755fbec38e320871560bca4403dedd7c57870e7b3bfcce04d5f9604ea25b
sha512
9ec7512f9530fac2a3487aa7ab4a93fb69ba6dea6a2ac8e5839728797b2e0a953fe4da58f053988162fbfb7a61e2b85bc3d313144ad69b59af3b496572b7781d
ripemd-160
dcbc3f3f3fd52e7e9c0d5ef87662c783253f146b
Diameter
42164574
Circumference
132463915.92014
Area
1.3963211462862E+15
Volume
3.9250190866899E+22
Surface area
5.5852845851447E+15
Circumference
132463915.92014
Perimeter
84329148
Area
444462825150369
Diagonal
29814856.201242
Surface area
2666776950902214
Volume
9.3702928406509E+21
Space diagonal
36515592.223749
Perimeter
63246861
Area
1.9245804880901E+14
Altitude
18257796.111874
Surface area
1.9245804880901E+14
Volume
1.1042996015547E+21
Height
9938285.400414