21432785 is an odd 8-digits composite number following 21432784
and preceding 21432786 . In scientific notation, it is written as 2.1432785 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 15587440 positive integers (up to 21432785) that are relatively prime to 21432785.
21432785 has 4 divisors, whose sum is 21822528
The reverse of 21432785 is 58723412
Previous prime number is 55
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million four hundred thirty-two thousand seven hundred eighty-five
Scientific notation
2.1432785 × 10^7
Engineering notation
2.1432785 × 10^6
Prime Factorization
55 × 389687
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21432785
Product of the distinct prime numbers
The prime factorization of 21432785 is 55 × 389687.
Since it has a total of 2 prime factors.
10 , 7 , 100 , 53 , 905 , 275 , 9820 , 8460 , 12547 , 96594 , 864510 , 64640 , 550609 , 6871440 , 88737002 , 12867685 , 325293612 , 283117276 , 3554211231 , 8085700062
n×2
42865570
n×3
64298355
n×4
85731140
n×5
107163925
n÷2
10716392.5
n÷3
7144261.6666667
n÷3
5358196.25
n÷5
4286557
n2
459364272856225
n3
9.8454556968088E+21
n4
2.1101553517673E+29
n5
4.5226505971028E+36
2 √n
4629.5555942228
3 √n
277.77481635361
4 √n
68.040837694893
5 √n
29.256052150466
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
-21432784
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 21432785 can be divided by 4 positive divisors.
The sum of these divisors (counting 21432785) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001110000100111010001
3
Ternary
1111022220020212
4
Quaternary
1101300213101
5
Quinary
20441322120
6
Senary
2043213505
8
Octal
121604721
10
Decimal
21432785
12
Duodecimal
7217295
16
Hexadecimal
14709d1
20
Vigesimal
6dj1j5
36
Base36
crdn5
md5
db5cba7b6a3ec5f12df02eb576315aab
sha1
1c15a754f0eda67747c7bbba18deaa50b999b923
sha256
22a874ca6028bb6f2f0ea424ca77de1ad91069340b2d7f2c51ace9b951896471
sha512
b39e57f6eb6118e9a5398f0f10002e3dd2b7b39e9d973248295afa5a8ea1a980ad454b6a66f47a95f03716166e5f03b66a8bc48b950c3b63b22c9aea88814025
ripemd-160
1f89ae2dccd1c9d687bdbcf1583d21b18534f58b
Diameter
42865570
Circumference
134666159.80394
Area
1.4431354249267E+15
Volume
4.1240548384451E+22
Surface area
5.7725416997069E+15
Circumference
134666159.80394
Perimeter
85731140
Area
459364272856225
Diagonal
30310535.226427
Surface area
2756185637137350
Volume
9.8454556968088E+21
Space diagonal
37122672.5677
Perimeter
64298355
Area
1.9891056494223E+14
Altitude
18561336.28385
Surface area
1.9891056494223E+14
Volume
1.1602980811809E+21
Height
10103511.742142