20389915 is an odd 8-digits composite number following 20389914
and preceding 20389916 . In scientific notation, it is written as 2.0389915 × 10^7.
The sum of its digits is 37. It has a total of 5 prime factors and 32 positive divisors.
There are 12579840 positive integers (up to 20389915) that are relatively prime to 20389915.
20389915 has 32 divisors, whose sum is 30877056
The reverse of 20389915 is 51998302
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million three hundred eighty-nine thousand nine hundred fifteen
Scientific notation
2.0389915 × 10^7
Engineering notation
2.0389915 × 10^6
Prime Factorization
5 × 7 × 13 × 41 × 1093
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20389915
Product of the distinct prime numbers
The prime factorization of 20389915 is 5 × 7 × 13 × 41 × 1093.
Since it has a total of 5 prime factors.
10 , 6 , 64 , 20 , 313 , 832 , 8982 , 8490 , 71432 , 44984 , 303834 , 429217 , 7031874 , 6741509 , 94013977 , 42389712 , 577138229 , 6552685 , 1599098850 , 6135396986
n×2
40779830
n×3
61169745
n×4
81559660
n×5
101949575
n÷2
10194957.5
n÷3
6796638.3333333
n÷3
5097478.75
n÷5
4077983
n2
415748633707225
n3
8.4770793026565E+21
n4
1.7284692642942E+29
n5
3.5243341379072E+36
2 √n
4515.5193499751
3 √n
273.1944077208
4 √n
67.197614168772
5 √n
28.965636953661
1 , 5 , 7 , 13 , 35 , 41 , 65 , 91 , 205 , 287 , 455 , 533 , 1093 , 1435 , 2665 , 3731 , 5465 , 7651 , 14209 , 18655 , 38255 , 44813 , 71045 , 99463 , 224065 , 313691 , 497315 , 582569 , 1568455 , 2912845 , 4077983 , 20389915
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
-20389914
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 20389915 can be divided by 32 positive divisors.
The sum of these divisors (counting 20389915) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001101110010000000011011
3
Ternary
1102100220201001
4
Quaternary
1031302000123
5
Quinary
20204434130
6
Senary
2005005431
8
Octal
115620033
10
Decimal
20389915
12
Duodecimal
69b3877
16
Hexadecimal
137201b
20
Vigesimal
678eff
36
Base36
c50yj
md5
3196e8d668438ecc226cce0f1327090a
sha1
6bdfa9365e62b4b38c2c79c4c484e6ecc4355e29
sha256
f7c0a9af65fd8b4890a1cfa3d65127aa0cd1a570280ec6197ed9aabcb760be78
sha512
053b99845350fa56b412e289e68532f17a782f5acf65e3fc225a1fc49491814071baeaa0a153baa406dd87ca30d89863c7e41ee05dca9ed755d9a83203bcf664
ripemd-160
fcc76ab9c1a791b2211412b649cfa2cfe9901a71
Diameter
40779830
Circumference
128113614.34264
Area
1.3061128533946E+15
Volume
3.5508706748165E+22
Surface area
5.2244514135784E+15
Circumference
128113614.34264
Perimeter
81559660
Area
415748633707225
Diagonal
28835694.328635
Surface area
2494491802243350
Volume
8.4770793026565E+21
Space diagonal
35316368.742011
Perimeter
61169745
Area
1.8002443918956E+14
Altitude
17658184.371005
Surface area
1.8002443918956E+14
Volume
9.9903337659408E+20
Height
9611898.1095449