21285510 is an even 8-digits composite number following 21285509
and preceding 21285511 . In scientific notation, it is written as 2.1285510 × 10^7.
The sum of its digits is 24. It has a total of 5 prime factors and 32 positive divisors.
There are 5311872 positive integers (up to 21285510) that are relatively prime to 21285510.
21285510 has 32 divisors, whose sum is 39463200
The reverse of 21285510 is 01558212
Previous prime number is 349
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million two hundred eighty-five thousand five hundred ten
Scientific notation
2.1285510 × 10^7
Engineering notation
2.1285510 × 10^6
Prime Factorization
2 × 57 × 5 × 349 × 107
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21285510
Product of the distinct prime numbers
The prime factorization of 21285510 is 2 × 57 × 5 × 349 × 107.
Since it has a total of 5 prime factors.
3 , 7 , 4 , 69 , 585 , 393 , 9598 , 6348 , 99790 , 77469 , 27144 , 231025 , 3653660 , 7112791 , 85046859 , 2335459 , 925565405 , 161467391 , 366967593 , 794772710
n×2
42571020
n×3
63856530
n×4
85142040
n×5
106427550
n÷2
10642755
n÷3
7095170
n÷3
5321377.5
n÷5
4257102
n2
453072935960100
n3
9.6438885091081E+21
n4
2.052750852995E+29
n5
4.3693848808935E+36
2 √n
4613.6222212054
3 √n
277.13711189118
4 √n
67.923649940248
5 √n
29.215734693222
1 , 2 , 5 , 10 , 57 , 107 , 114 , 214 , 285 , 349 , 535 , 570 , 698 , 1070 , 1745 , 3490 , 6099 , 12198 , 19893 , 30495 , 37343 , 39786 , 60990 , 74686 , 99465 , 186715 , 198930 , 373430 , 2128551 , 4257102 , 10642755 , 21285510
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21285509
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21285510 can be divided by 32 positive divisors.
The sum of these divisors (counting 21285510) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010001001100101010000110
3
Ternary
1111001102020020
4
Quaternary
1101030222012
5
Quinary
20422114020
6
Senary
2040120010
8
Octal
121145206
10
Decimal
21285510
12
Duodecimal
7166006
16
Hexadecimal
144ca86
20
Vigesimal
6d0dfa
36
Base36
co806
md5
4d78826a0b631c5bd7ae373d7c807c67
sha1
785f9e14047841921c583c93b447c4ae390077e3
sha256
60ef18ebb1861d07a2e7fc68a8721b690f462507818e75bc8aaaeb2611c3ceb2
sha512
b2d0406bc5afc3a8e8e3ff3ae6655bb4ad0256db4e244de6332328db8f53f1367217e226b6658fe788574cbb06009db54ddb2c5cdb8b171073cade7193baedc9
ripemd-160
d33ecd428ff77ad4cf06ad13b1a24199ce6f6a52
Diameter
42571020
Circumference
133740803.68782
Area
1.4233706071526E+15
Volume
4.0396225723004E+22
Surface area
5.6934824286104E+15
Circumference
133740803.68782
Perimeter
85142040
Area
453072935960100
Diagonal
30102256.924028
Surface area
2718437615760600
Volume
9.6438885091081E+21
Space diagonal
36867584.785015
Perimeter
63856530
Area
1.9618633615432E+14
Altitude
18433792.392508
Surface area
1.9618633615432E+14
Volume
1.1365431602996E+21
Height
10034085.641343