21852561 is an odd 8-digits composite number following 21852560
and preceding 21852562 . In scientific notation, it is written as 2.1852561 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 14568372 positive integers (up to 21852561) that are relatively prime to 21852561.
21852561 has 4 divisors, whose sum is 29136752
The reverse of 21852561 is 16525812
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million eight hundred fifty-two thousand five hundred sixty-one
Scientific notation
2.1852561 × 10^7
Engineering notation
2.1852561 × 10^6
Prime Factorization
3 × 7284187
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21852561
Product of the distinct prime numbers
The prime factorization of 21852561 is 3 × 7284187.
Since it has a total of 2 prime factors.
7 , 10 , 36 , 18 , 453 , 335 , 1268 , 8017 , 6262 , 62526 , 134745 , 584004 , 803197 , 5478851 , 99649382 , 48202832 , 571778481 , 535126200 , 2511325231 , 8441033295
n×2
43705122
n×3
65557683
n×4
87410244
n×5
109262805
n÷2
10926280.5
n÷3
7284187
n÷3
5463140.25
n÷5
4370512.2
n2
477534422258721
n3
1.0435350092008E+22
n4
2.2803912444197E+29
n5
4.9832388772548E+36
2 √n
4674.6722879791
3 √n
279.57657514236
4 √n
68.371575146249
5 √n
29.369764775571
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21852560
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21852561 can be divided by 4 positive divisors.
The sum of these divisors (counting 21852561) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011010111000110010001
3
Ternary
1112010020002010
4
Quaternary
1103113012101
5
Quinary
21043240221
6
Senary
2100213133
8
Octal
123270621
10
Decimal
21852561
12
Duodecimal
739a1a9
16
Hexadecimal
14d7191
20
Vigesimal
6gbb81
36
Base36
d0djl
md5
c83c34bd2e7a264f247200693382ec10
sha1
d989373cb2de03aa47d0a50f7d52e2c2a4563963
sha256
0b2bfde930d21c5b12fbada0e137876154f2120b843fdc9c7704846ef50ad53e
sha512
769891f137ef32c751ce705c3f2f1de1b6e3d42f2851feb2f12dc2af19ffb9b7464a794a04fa03d0c323a64aee44e51b8c1d704018a55cc4a0ad71ef0fa9d441
ripemd-160
7f29e18f68bab4727447a357b2ff850124a7a70f
Diameter
43705122
Circumference
137303690.19945
Area
1.5002186328042E+15
Volume
4.3711492248922E+22
Surface area
6.000874531217E+15
Circumference
137303690.19945
Perimeter
87410244
Area
477534422258721
Diagonal
30904188.138785
Surface area
2865206533552326
Volume
1.0435350092008E+22
Space diagonal
37849745.927498
Perimeter
65557683
Area
2.0677847042879E+14
Altitude
18924872.963749
Surface area
2.0677847042879E+14
Volume
1.2298178023525E+21
Height
10301396.046262