20402390 is an even 8-digits composite number following 20402389
and preceding 20402391 . In scientific notation, it is written as 2.0402390 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors.
There are 7673184 positive integers (up to 20402390) that are relatively prime to 20402390.
20402390 has 16 divisors, whose sum is 32417280
The reverse of 20402390 is 09320402
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million four hundred two thousand three hundred ninety
Scientific notation
2.0402390 × 10^7
Engineering notation
2.0402390 × 10^6
Prime Factorization
2 × 3215 × 19 × 167
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20402390
Product of the distinct prime numbers
The prime factorization of 20402390 is 2 × 3215 × 19 × 167.
Since it has a total of 4 prime factors.
3 , 9 , 50 , 21 , 513 , 646 , 8342 , 9812 , 34019 , 31370 , 589461 , 337001 , 5798674 , 6205645 , 3814506 , 95532546 , 214387528 , 180023447 , 1980175818 , 5483999087
n×2
40804780
n×3
61207170
n×4
81609560
n×5
102011950
n÷2
10201195
n÷3
6800796.6666667
n÷3
5100597.5
n÷5
4080478
n2
416257517712100
n3
8.4926482167942E+21
n4
1.7327032105184E+29
n5
3.5351286655248E+36
2 √n
4516.9004859527
3 √n
273.25011181801
4 √n
67.20789005729
5 √n
28.969180449763
1 , 2 , 19 , 38 , 167 , 334 , 3173 , 3215 , 6346 , 6430 , 61085 , 122170 , 536905 , 1073810 , 10201195 , 20402390
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20402389
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20402390 can be divided by 16 positive divisors.
The sum of these divisors (counting 20402390) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101110101000011010110
3
Ternary
1102101112211002
4
Quaternary
1031311003112
5
Quinary
20210334030
6
Senary
2005143302
8
Octal
115650326
10
Decimal
20402390
12
Duodecimal
69bab32
16
Hexadecimal
13750d6
20
Vigesimal
67a5ja
36
Base36
c5al2
md5
95e390d5b6c5e8615718f9b9e69b6eba
sha1
7fd46be20792a24a6ed10dac15d3390c050c8e2f
sha256
956fb5436c73cb3721650fa0f1b85bef74a8faca7a6d4c83e03f5fb2bbd47019
sha512
d5ff83908e97b629b4716589790fd14f2b365c236d3475beb782662a2db5d1abed9878667f92bd0160d3b2d1dccea8c8c27f6a90964918901d7f089bf9655b82
ripemd-160
1b08d813bb0ca408fe4d8c41153ca9fd7969ccc2
Diameter
40804780
Circumference
128191997.07935
Area
1.3077115596459E+15
Volume
3.5573921663204E+22
Surface area
5.2308462385834E+15
Circumference
128191997.07935
Perimeter
81609560
Area
416257517712100
Diagonal
28853336.642825
Surface area
2497545106272600
Volume
8.4926482167942E+21
Space diagonal
35337976.075835
Perimeter
61207170
Area
1.8024479242746E+14
Altitude
17668988.037918
Surface area
1.8024479242746E+14
Volume
1.0008681907212E+21
Height
9617778.8809417