20993385 is an odd 8-digits composite number following 20993384
and preceding 20993386 . In scientific notation, it is written as 2.0993385 × 10^7.
The sum of its digits is 39. It has a total of 5 prime factors and 32 positive divisors.
There are 8543232 positive integers (up to 20993385) that are relatively prime to 20993385.
20993385 has 32 divisors, whose sum is 28569600
The reverse of 20993385 is 58339902
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million nine hundred ninety-three thousand three hundred eighty-five
Scientific notation
2.0993385 × 10^7
Engineering notation
2.0993385 × 10^6
Prime Factorization
15 × 7 × 19 × 17 × 619
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20993385
Product of the distinct prime numbers
The prime factorization of 20993385 is 15 × 7 × 19 × 17 × 619.
Since it has a total of 5 prime factors.
9 , 9 , 95 , 99 , 665 , 221 , 1893 , 3691 , 84917 , 27922 , 871666 , 862912 , 2630426 , 2490268 , 57238539 , 5324583 , 915070239 , 888654528 , 3835149516 , 981173731
n×2
41986770
n×3
62980155
n×4
83973540
n×5
104966925
n÷2
10496692.5
n÷3
6997795
n÷3
5248346.25
n÷5
4198677
n2
440722213758225
n3
9.2522511114787E+21
n4
1.9423606969995E+29
n5
4.0776725920979E+36
2 √n
4581.8538824367
3 √n
275.86344589201
4 √n
67.689392687752
5 √n
29.13509872755
1 , 7 , 15 , 17 , 19 , 105 , 119 , 133 , 255 , 285 , 323 , 619 , 1785 , 1995 , 2261 , 4333 , 4845 , 9285 , 10523 , 11761 , 33915 , 64995 , 73661 , 82327 , 157845 , 176415 , 199937 , 1104915 , 1234905 , 1399559 , 2999055 , 20993385
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20993384
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20993385 can be divided by 32 positive divisors.
The sum of these divisors (counting 20993385) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000000101010101101001
3
Ternary
1110111120111210
4
Quaternary
1100011111221
5
Quinary
20333242020
6
Senary
2025543333
8
Octal
120052551
10
Decimal
20993385
12
Duodecimal
7044b49
16
Hexadecimal
1405569
20
Vigesimal
6b4395
36
Base36
chyll
md5
a76bec471da3733cde084a3f90e16749
sha1
5d465b041e05a079ac693e57de009fad867838a5
sha256
b9b4457cc91f40320800d29794344fa33e60c019990d22d5c9f43a1db4a5182e
sha512
9e597f23a54c5f1e358d86d95a03e15b220005a5ae4efd37d237496c8be4baa07ad9de1de71243a3da90e06df451ef84a36e65b36faaf1901fd0b0d915a63aa2
ripemd-160
1daf0dc2ad0f96bb3efcb048d9606b75ed5f644a
Diameter
41986770
Circumference
131905328.17996
Area
1.3845696690167E+15
Volume
3.8755738827986E+22
Surface area
5.5382786760667E+15
Circumference
131905328.17996
Perimeter
83973540
Area
440722213758225
Diagonal
29689129.78712
Surface area
2644333282549350
Volume
9.2522511114787E+21
Space diagonal
36361609.442854
Perimeter
62980155
Area
1.9083831656337E+14
Altitude
18180804.721427
Surface area
1.9083831656337E+14
Volume
1.0903882503612E+21
Height
9896376.5957066