21008873 is an odd 8-digits composite number following 21008872
and preceding 21008874 . In scientific notation, it is written as 2.1008873 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 20941440 positive integers (up to 21008873) that are relatively prime to 21008873.
21008873 has 4 divisors, whose sum is 21076308
The reverse of 21008873 is 37880012
Previous prime number is 313
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million eight thousand eight hundred seventy-three
Scientific notation
2.1008873 × 10^7
Engineering notation
2.1008873 × 10^6
Prime Factorization
313 × 67121
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21008873
Product of the distinct prime numbers
The prime factorization of 21008873 is 313 × 67121.
Since it has a total of 2 prime factors.
8 , 3 , 52 , 22 , 536 , 612 , 4279 , 616 , 1845 , 90912 , 187337 , 616840 , 756494 , 257294 , 38090450 , 25990777 , 274469441 , 209227614 , 6769994529 , 4992801215
n×2
42017746
n×3
63026619
n×4
84035492
n×5
105044365
n÷2
10504436.5
n÷3
7002957.6666667
n÷3
5252218.25
n÷5
4201774.6
n2
441372744730129
n3
9.2727439396967E+21
n4
1.9480989979061E+29
n5
4.0927364438436E+36
2 √n
4583.5437163836
3 √n
275.93126920516
4 √n
67.701873802603
5 √n
29.13939637945
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
-21008872
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 21008873 can be divided by 4 positive divisors.
The sum of these divisors (counting 21008873) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001001000111101001
3
Ternary
1110112100202102
4
Quaternary
1100021013221
5
Quinary
20334240443
6
Senary
2030143145
8
Octal
120110751
10
Decimal
21008873
12
Duodecimal
7051ab5
16
Hexadecimal
14091e9
20
Vigesimal
6b623d
36
Base36
ciajt
md5
519f14e5599640bf2c7de0abdf081442
sha1
e8124520d5cca84e70030cf64f1d4afcbaef6933
sha256
a5e191c1504391bb688219b69392a97814b640d68db40a08c59680a230a0dbdd
sha512
162858bb01a82dd3efcd2b3812a5287abfbf7a41856e0e6ed9f07b3ea0303f8dca63b62b75d04186ca676d49aca6aacfca1c45ac1f68ceaab9899820cfa9dfc9
ripemd-160
00629af77260273f9930509a668ef8fedb3394da
Diameter
42017746
Circumference
132002642.154
Area
1.3866133723389E+15
Volume
3.8841578986094E+22
Surface area
5.5464534893557E+15
Circumference
132002642.154
Perimeter
84035492
Area
441372744730129
Diagonal
29711033.126774
Surface area
2648236468380774
Volume
9.2727439396967E+21
Space diagonal
36388435.445762
Perimeter
63026619
Area
1.9112000473718E+14
Altitude
18194217.722881
Surface area
1.9112000473718E+14
Volume
1.0928033533277E+21
Height
9903677.7089246