21252085 is an odd 8-digits composite number following 21252084
and preceding 21252086 . In scientific notation, it is written as 2.1252085 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 16985040 positive integers (up to 21252085) that are relatively prime to 21252085.
21252085 has 8 divisors, whose sum is 25527456
The reverse of 21252085 is 58025212
Previous prime number is 2347
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million two hundred fifty-two thousand eighty-five
Scientific notation
2.1252085 × 10^7
Engineering notation
2.1252085 × 10^6
Prime Factorization
5 × 2347 × 1811
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21252085
Product of the distinct prime numbers
The prime factorization of 21252085 is 5 × 2347 × 1811.
Since it has a total of 3 prime factors.
8 , 8 , 25 , 73 , 330 , 772 , 8323 , 9312 , 97945 , 22211 , 960656 , 674252 , 2743865 , 2420647 , 78812284 , 14966536 , 170704413 , 7942653 , 8828085960 , 4551313965
n×2
42504170
n×3
63756255
n×4
85008340
n×5
106260425
n÷2
10626042.5
n÷3
7084028.3333333
n÷3
5313021.25
n÷5
4250417
n2
451651116847225
n3
9.5985279255822E+21
n4
2.0398873134935E+29
n5
4.3351858576785E+36
2 √n
4609.9983731017
3 √n
276.99197151202
4 √n
67.896968806432
5 √n
29.206553330886
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
-21252084
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 21252085 can be divided by 8 positive divisors.
The sum of these divisors (counting 21252085) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001000100011111110101
3
Ternary
1110222201101021
4
Quaternary
1101010133311
5
Quinary
20420031320
6
Senary
2035301141
8
Octal
121043765
10
Decimal
21252085
12
Duodecimal
714a7b1
16
Hexadecimal
14447f5
20
Vigesimal
6cga45
36
Base36
cni7p
md5
035ed2fddd986df31fbbaa1a1241fe00
sha1
26184b528e43df0e10df09da32f4d41791845ca6
sha256
f97455fd24adf62fe7a2ec7c72c4c6d41f63a5690072df3069c466087061e0d9
sha512
edc7dad4b5b7684d16c0f6773dc5d04f794add0d9bfb89bffdf8154e524615963c404bf3a2b1205abe4563e800953cb79318e9970754d3958cf9e9649f528e3f
ripemd-160
7e7084c988869c72cb6286c7abbc80f0b23f1375
Diameter
42504170
Circumference
133530788.21893
Area
1.4189038306729E+15
Volume
4.0206219755047E+22
Surface area
5.6756153226915E+15
Circumference
133530788.21893
Perimeter
85008340
Area
451651116847225
Diagonal
30054986.835706
Surface area
2709906701083350
Volume
9.5985279255822E+21
Space diagonal
36809690.986772
Perimeter
63756255
Area
1.9557067041866E+14
Altitude
18404845.493386
Surface area
1.9557067041866E+14
Volume
1.1311973642646E+21
Height
10018328.945235