21002355 is an odd 8-digits composite number following 21002354
and preceding 21002356 . In scientific notation, it is written as 2.1002355 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 10182240 positive integers (up to 21002355) that are relatively prime to 21002355.
21002355 has 16 divisors, whose sum is 28853760
The reverse of 21002355 is 55320012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million two thousand three hundred fifty-five
Scientific notation
2.1002355 × 10^7
Engineering notation
2.1002355 × 10^6
Prime Factorization
33 × 9 × 5 × 14143
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21002355
Product of the distinct prime numbers
The prime factorization of 21002355 is 33 × 9 × 5 × 14143.
Since it has a total of 4 prime factors.
10 , 7 , 15 , 10 , 118 , 537 , 3258 , 2182 , 65238 , 48361 , 694638 , 513455 , 5765758 , 8198680 , 36636766 , 4703784 , 463762498 , 912094675 , 7548270918 , 5088395015
n×2
42004710
n×3
63007065
n×4
84009420
n×5
105011775
n÷2
10501177.5
n÷3
7000785
n÷3
5250588.75
n÷5
4200471
n2
441098915546025
n3
9.2641160144126E+21
n4
1.9456825329588E+29
n5
4.08639152745E+36
2 √n
4582.8326393182
3 √n
275.90273037395
4 √n
67.696622067265
5 √n
29.137588056268
1 , 5 , 9 , 33 , 45 , 165 , 297 , 1485 , 14143 , 70715 , 127287 , 466719 , 636435 , 2333595 , 4200471 , 21002355
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
-21002354
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 21002355 can be divided by 16 positive divisors.
The sum of these divisors (counting 21002355) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000111100001110011
3
Ternary
1110112000211000
4
Quaternary
1100013201303
5
Quinary
20334033410
6
Senary
2030053043
8
Octal
120074163
10
Decimal
21002355
12
Duodecimal
704a183
16
Hexadecimal
1407873
20
Vigesimal
6b55hf
36
Base36
ci5ir
md5
1d9697467f6172a487df917036cefebf
sha1
6e794d0fe26f4b2d8df37d56b988196f9262c66b
sha256
24040d6717009393724602cdb29666a8f266d0d7ca9d2e321fb307538e094f7c
sha512
bb9200963847924a9db4a43de780ce180211f172f6d41f1a32a580190d28f1e65ad5667f292c8d0f26aee8db66b45ed6ea95169ea36816d66212125ab892cb46
ripemd-160
e9b6e7303b4b1157e9915301a8ef3f47dc28914c
Diameter
42004710
Circumference
131961688.35217
Area
1.3857531125858E+15
Volume
3.8805438417176E+22
Surface area
5.5430124503433E+15
Circumference
131961688.35217
Perimeter
84009420
Area
441098915546025
Diagonal
29701815.282774
Surface area
2646593493276150
Volume
9.2641160144126E+21
Space diagonal
36377145.938598
Perimeter
63007065
Area
1.9100143322231E+14
Altitude
18188572.969299
Surface area
1.9100143322231E+14
Volume
1.0917865425817E+21
Height
9900605.0942581