21471885 is an odd 8-digits composite number following 21471884
and preceding 21471886 . In scientific notation, it is written as 2.1471885 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 11451456 positive integers (up to 21471885) that are relatively prime to 21471885.
21471885 has 8 divisors, whose sum is 26084856
The reverse of 21471885 is 58817412
Previous prime number is 81
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million four hundred seventy-one thousand eight hundred eighty-five
Scientific notation
2.1471885 × 10^7
Engineering notation
2.1471885 × 10^6
Prime Factorization
5 × 81 × 53017
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21471885
Product of the distinct prime numbers
The prime factorization of 21471885 is 5 × 81 × 53017.
Since it has a total of 3 prime factors.
7 , 5 , 43 , 48 , 260 , 733 , 1145 , 4865 , 68641 , 54204 , 255344 , 33976 , 9904821 , 1256724 , 33401953 , 65580659 , 344558345 , 948290616 , 6830123512 , 8712396263
n×2
42943770
n×3
64415655
n×4
85887540
n×5
107359425
n÷2
10735942.5
n÷3
7157295
n÷3
5367971.25
n÷5
4294377
n2
461041845453225
n3
9.8994374857594E+21
n4
2.1255958325892E+29
n5
4.5640549273834E+36
2 √n
4633.7765375555
3 √n
277.94362934121
4 √n
68.071848348311
5 √n
29.266718779304
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21471884
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21471885 can be divided by 8 positive divisors.
The sum of these divisors (counting 21471885) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111010001010001101
3
Ternary
1111101212220000
4
Quaternary
1101322022031
5
Quinary
20444100020
6
Senary
2044114513
8
Octal
121721215
10
Decimal
21471885
12
Duodecimal
7235a39
16
Hexadecimal
147a28d
20
Vigesimal
6e3je5
36
Base36
cs7t9
md5
ea26929fc839cf9e3af006185623b242
sha1
8a67def4e1ebf08feb36f02852f6272e4b7bfb16
sha256
10dbbcbdda053ca730a6d815e170ab531b6809c4832f8e723d4a4cadfe383693
sha512
bc82013ffbfc4d78afcc77988428d48f3b6a24cdd70899d462fba47c7c89176bbc082783b9ade140b110138432e4745fdd27140c11aa4f0b7a4a2ef8f2c36b76
ripemd-160
7be24d2bdbd2a693e4f18c93202f638aed4a84f7
Diameter
42943770
Circumference
134911832.34945
Area
1.4484056746733E+15
Volume
4.1466666773244E+22
Surface area
5.7936226986933E+15
Circumference
134911832.34945
Perimeter
85887540
Area
461041845453225
Diagonal
30365830.976715
Surface area
2766251072719350
Volume
9.8994374857594E+21
Space diagonal
37190395.754276
Perimeter
64415655
Area
1.9963697518508E+14
Altitude
18595197.877138
Surface area
1.9963697518508E+14
Volume
1.1666598960188E+21
Height
10121943.658905