21207315 is an odd 8-digits composite number following 21207314
and preceding 21207316 . In scientific notation, it is written as 2.1207315 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 11271936 positive integers (up to 21207315) that are relatively prime to 21207315.
21207315 has 16 divisors, whose sum is 34047648
The reverse of 21207315 is 51370212
Previous prime number is 313
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million two hundred seven thousand three hundred fifteen
Scientific notation
2.1207315 × 10^7
Engineering notation
2.1207315 × 10^6
Prime Factorization
5 × 3 × 313 × 4517
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21207315
Product of the distinct prime numbers
The prime factorization of 21207315 is 5 × 3 × 313 × 4517.
Since it has a total of 4 prime factors.
4 , 5 , 32 , 99 , 339 , 325 , 7900 , 6591 , 8916 , 80500 , 177222 , 258653 , 1863475 , 3625768 , 24939948 , 7657196 , 949128307 , 412454317 , 6381138878 , 2131850281
n×2
42414630
n×3
63621945
n×4
84829260
n×5
106036575
n÷2
10603657.5
n÷3
7069105
n÷3
5301828.75
n÷5
4241463
n2
449750209509225
n3
9.5379943643781E+21
n4
2.0227525095359E+29
n5
4.2897149636769E+36
2 √n
4605.1400630165
3 √n
276.79732945261
4 √n
67.861182298988
5 √n
29.194237545275
1 , 3 , 5 , 15 , 313 , 939 , 1565 , 4517 , 4695 , 13551 , 22585 , 67755 , 1413821 , 4241463 , 7069105 , 21207315
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
-21207314
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 21207315 can be divided by 16 positive divisors.
The sum of these divisors (counting 21207315) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000111001100100010011
3
Ternary
1110220102222010
4
Quaternary
1100321210103
5
Quinary
20412113230
6
Senary
2034314003
8
Octal
120714423
10
Decimal
21207315
12
Duodecimal
7128903
16
Hexadecimal
1439913
20
Vigesimal
6cai5f
36
Base36
cmjo3
md5
a8cfdea7d8a3cca6e62dc4027319eee9
sha1
aa81d96023dd1c97ae3f07689002222274ae7475
sha256
7066f54633d2459e8d0ea9249518c561dffd714d7ef3ad4ddc3340416075ef42
sha512
710197dae36a0f4aa4a71dfa8765c6a9d872da305f2eff2e393ff270d988371327c78c4ee27acd72cfe567aa324b1df172d04a45b5b15ac7c64e2b626fed4f7d
ripemd-160
0ccbd57c10df26c8d9d719ba8028875c15691b22
Diameter
42414630
Circumference
133249490.01273
Area
1.4129319541447E+15
Volume
3.9952657366815E+22
Surface area
5.6517278165786E+15
Circumference
133249490.01273
Perimeter
84829260
Area
449750209509225
Diagonal
29991672.494518
Surface area
2698501257055350
Volume
9.5379943643781E+21
Space diagonal
36732147.072118
Perimeter
63621945
Area
1.9474755339618E+14
Altitude
18366073.536059
Surface area
1.9474755339618E+14
Volume
1.1240634156618E+21
Height
9997224.1648395