20993915 is an odd 8-digits composite number following 20993914
and preceding 20993916 . In scientific notation, it is written as 2.0993915 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 16778592 positive integers (up to 20993915) that are relatively prime to 20993915.
20993915 has 8 divisors, whose sum is 25217520
The reverse of 20993915 is 51939902
Previous prime number is 2347
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million nine hundred ninety-three thousand nine hundred fifteen
Scientific notation
2.0993915 × 10^7
Engineering notation
2.0993915 × 10^6
Prime Factorization
5 × 2347 × 1789
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20993915
Product of the distinct prime numbers
The prime factorization of 20993915 is 5 × 2347 × 1789.
Since it has a total of 3 prime factors.
2 , 3 , 76 , 95 , 657 , 418 , 2206 , 6598 , 48757 , 92656 , 804868 , 631391 , 4227810 , 2807145 , 36276014 , 65480429 , 705594285 , 292068695 , 8656691723 , 5409032775
n×2
41987830
n×3
62981745
n×4
83975660
n×5
104969575
n÷2
10496957.5
n÷3
6997971.6666667
n÷3
5248478.75
n÷5
4198783
n2
440744467027225
n3
9.2529518774899E+21
n4
1.9425568521511E+29
n5
4.0781873436728E+36
2 √n
4581.9117189226
3 √n
275.86576735972
4 √n
67.689819906117
5 √n
29.135245835283
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
-20993914
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 20993915 can be divided by 8 positive divisors.
The sum of these divisors (counting 20993915) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000101011101111011
3
Ternary
1110111121020102
4
Quaternary
1100011131323
5
Quinary
20333301130
6
Senary
2025550015
8
Octal
120053573
10
Decimal
20993915
12
Duodecimal
704530b
16
Hexadecimal
140577b
20
Vigesimal
6b44ff
36
Base36
chz0b
md5
0127314d009bf23a7fd92116202a0dfc
sha1
aeadca2dc9f62c2e1c6f37d2ec27ad67885df4af
sha256
d63b18ecf852c70f0589f8a611d3cff7cad243d1fbb7ff56811bca3359ebeaf8
sha512
e8e267ac91a47892272cb7b715294e1d1fc1eb00739ef60a92812beb3591570fcd14b50eb52a53013b5e9ebb07c409ced7caa9062554b66f76b7f364ba08d1ee
ripemd-160
20cdba1f565270a90e1a959c126d07ebb0b6042d
Diameter
41987830
Circumference
131908658.26818
Area
1.3846395797231E+15
Volume
3.8758674189789E+22
Surface area
5.5385583188923E+15
Circumference
131908658.26818
Perimeter
83975660
Area
440744467027225
Diagonal
29689879.320308
Surface area
2644466802163350
Volume
9.2529518774899E+21
Space diagonal
36362527.429782
Perimeter
62981745
Area
1.908479525115E+14
Altitude
18181263.714891
Surface area
1.908479525115E+14
Volume
1.0904708364276E+21
Height
9896626.4401027