21505853 is an odd 8-digits composite number following 21505852
and preceding 21505854 . In scientific notation, it is written as 2.1505853 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 19863360 positive integers (up to 21505853) that are relatively prime to 21505853.
21505853 has 8 divisors, whose sum is 22106616
The reverse of 21505853 is 35850512
Previous prime number is 361
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million five hundred five thousand eight hundred fifty-three
Scientific notation
2.1505853 × 10^7
Engineering notation
2.1505853 × 10^6
Prime Factorization
41 × 361 × 1453
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21505853
Product of the distinct prime numbers
The prime factorization of 21505853 is 41 × 361 × 1453.
Since it has a total of 3 prime factors.
5 , 8 , 44 , 60 , 388 , 754 , 224 , 7538 , 43212 , 84742 , 543156 , 860559 , 2644896 , 8070089 , 86450982 , 31902373 , 62679 , 287736833 , 5221167436 , 6798327546
n×2
43011706
n×3
64517559
n×4
86023412
n×5
107529265
n÷2
10752926.5
n÷3
7168617.6666667
n÷3
5376463.25
n÷5
4301170.6
n2
462501713257609
n3
9.9464938575663E+21
n4
2.1390783476622E+29
n5
4.6002704500307E+36
2 √n
4637.4403500207
3 √n
278.09011880864
4 √n
68.098754394047
5 √n
29.275972772821
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
-21505852
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 21505853 can be divided by 8 positive divisors.
The sum of these divisors (counting 21505853) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000010011100111101
3
Ternary
1111110121111002
4
Quaternary
1102002130331
5
Quinary
21001141403
6
Senary
2044540045
8
Octal
122023475
10
Decimal
21505853
12
Duodecimal
7251625
16
Hexadecimal
148273d
20
Vigesimal
6e84cd
36
Base36
csy0t
md5
aa2b3f717cf0de5594d0fa6db7a04939
sha1
df55f2c6d85bf89bb71e6f4c5b4a9dfe457920e8
sha256
a366de6675ec7586b3ab27e25702aba36290b5f36083c9b60e1ce9f6a897fd01
sha512
8438c972cb823b084433cb888f091ff4773e0af1c0fb1cb677f3e6fd6bf971194c8d7db37d0ec727399683be57f56ecfa5f23f0a46567c988569d2852aa3eef9
ripemd-160
4d1bd7b159e9bee07643eb1bab518e4f0c057b79
Diameter
43011706
Circumference
135125259.58796
Area
1.4529919846428E+15
Volume
4.1663776042542E+22
Surface area
5.8119679385712E+15
Circumference
135125259.58796
Perimeter
86023412
Area
462501713257609
Diagonal
30413868.983002
Surface area
2775010279545654
Volume
9.9464938575663E+21
Space diagonal
37249230.056108
Perimeter
64517559
Area
2.0026911648746E+14
Altitude
18624615.028054
Surface area
2.0026911648746E+14
Volume
1.1722055426192E+21
Height
10137956.327667