20993885 is an odd 8-digits composite number following 20993884
and preceding 20993886 . In scientific notation, it is written as 2.0993885 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 15268240 positive integers (up to 20993885) that are relatively prime to 20993885.
20993885 has 4 divisors, whose sum is 21375648
The reverse of 20993885 is 58839902
Previous prime number is 55
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million nine hundred ninety-three thousand eight hundred eighty-five
Scientific notation
2.0993885 × 10^7
Engineering notation
2.0993885 × 10^6
Prime Factorization
55 × 381707
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20993885
Product of the distinct prime numbers
The prime factorization of 20993885 is 55 × 381707.
Since it has a total of 2 prime factors.
4 , 4 , 76 , 77 , 427 , 770 , 7024 , 4515 , 28466 , 89834 , 646817 , 390669 , 1219473 , 6801852 , 32180953 , 16219796 , 855750257 , 201229516 , 1683697351 , 2522473163
n×2
41987770
n×3
62981655
n×4
83975540
n×5
104969425
n÷2
10496942.5
n÷3
6997961.6666667
n÷3
5248471.25
n÷5
4198777
n2
440743207393225
n3
9.2529122105445E+21
n4
1.9425457486327E+29
n5
4.0781582054033E+36
2 √n
4581.9084451787
3 √n
275.86563595693
4 √n
67.689795724161
5 √n
29.13523750851
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
-20993884
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 20993885 can be divided by 4 positive divisors.
The sum of these divisors (counting 20993885) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000101011101011101
3
Ternary
1110111121012022
4
Quaternary
1100011131131
5
Quinary
20333301020
6
Senary
2025545525
8
Octal
120053535
10
Decimal
20993885
12
Duodecimal
70452a5
16
Hexadecimal
140575d
20
Vigesimal
6b44e5
36
Base36
chyzh
md5
8a52cca5aa85ef491b0773c4b86a846d
sha1
4fe0130db3e3b665d8fb205ae9d276ea2a156def
sha256
2979325d5d0656ebe0d5dd880736ae3c5b70157181c2d5d8624b08c2d834dead
sha512
9b8702a83b324a73085047d43abff7fc8e03ad70fbea9472c2d8352b6f6889458045cd39e4a1552de81794a4a70beccf61964a97568e04264433e4fc6f41bec1
ripemd-160
13f07116e3f21c80333ac49445437d9315c5b167
Diameter
41987770
Circumference
131908469.77262
Area
1.3846356224662E+15
Volume
3.8758508033277E+22
Surface area
5.5385424898646E+15
Circumference
131908469.77262
Perimeter
83975540
Area
440743207393225
Diagonal
29689836.893901
Surface area
2644459244359350
Volume
9.2529122105445E+21
Space diagonal
36362475.468258
Perimeter
62981655
Area
1.9084740707398E+14
Altitude
18181237.734129
Surface area
1.9084740707398E+14
Volume
1.0904661616333E+21
Height
9896612.297967