21007065 is an odd 8-digits composite number following 21007064
and preceding 21007066 . In scientific notation, it is written as 2.1007065 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 10613952 positive integers (up to 21007065) that are relatively prime to 21007065.
21007065 has 16 divisors, whose sum is 35380800
The reverse of 21007065 is 56070012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million seven thousand sixty-five
Scientific notation
2.1007065 × 10^7
Engineering notation
2.1007065 × 10^6
Prime Factorization
3 × 19 × 5 × 73709
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21007065
Product of the distinct prime numbers
The prime factorization of 21007065 is 3 × 19 × 5 × 73709.
Since it has a total of 4 prime factors.
1 , 9 , 10 , 60 , 618 , 739 , 2284 , 6078 , 54312 , 89630 , 261072 , 752882 , 6748071 , 1722311 , 88931037 , 36494794 , 251372056 , 981508514 , 6268338483 , 4704848219
n×2
42014130
n×3
63021195
n×4
84028260
n×5
105035325
n÷2
10503532.5
n÷3
7002355
n÷3
5251766.25
n÷5
4201413
n2
441296779914225
n3
9.2703501399488E+21
n4
1.9474284796266E+29
n5
4.0909756654368E+36
2 √n
4583.3464848296
3 √n
275.92335353311
4 √n
67.7004171688
5 √n
29.138894821444
1 , 3 , 5 , 15 , 19 , 57 , 95 , 285 , 73709 , 221127 , 368545 , 1105635 , 1400471 , 4201413 , 7002355 , 21007065
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
-21007064
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 21007065 can be divided by 16 positive divisors.
The sum of these divisors (counting 21007065) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001000101011011001
3
Ternary
1110112021021110
4
Quaternary
1100020223121
5
Quinary
20334211230
6
Senary
2030130533
8
Octal
120105331
10
Decimal
21007065
12
Duodecimal
7050a49
16
Hexadecimal
1408ad9
20
Vigesimal
6b5hd5
36
Base36
ci95l
md5
48e176586275143d43abcaa789f603c0
sha1
d4ab40220f57dd52314c907c715877772465baa0
sha256
e596b50ae4aa468ce7a301d2742e296aa1226ad01d9cad6ad78b5247c187728a
sha512
51cde0fcf020866ad8d7b14e3f4d997214fc7804605a403f5fdea70de54ee63e2eb33bc7e79b074aeeabf1ac08b27e112942cab2f2796c6de592bc8c66e2ee8c
ripemd-160
595a78ced8011ebcc04acf4807bea1836875082e
Diameter
42014130
Circumference
131991282.15497
Area
1.3863747218314E+15
Volume
3.8831551861158E+22
Surface area
5.5454988873254E+15
Circumference
131991282.15497
Perimeter
84028260
Area
441296779914225
Diagonal
29708476.228653
Surface area
2647780679485350
Volume
9.2703501399488E+21
Space diagonal
36385303.897902
Perimeter
63021195
Area
1.9108711100699E+14
Altitude
18192651.948951
Surface area
1.9108711100699E+14
Volume
1.0925212413219E+21
Height
9902825.4095511