20209870 is an even 8-digits composite number following 20209869
and preceding 20209871 . In scientific notation, it is written as 2.0209870 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 7732384 positive integers (up to 20209870) that are relatively prime to 20209870.
20209870 has 16 divisors, whose sum is 37959840
The reverse of 20209870 is 07890202
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million two hundred nine thousand eight hundred seventy
Scientific notation
2.0209870 × 10^7
Engineering notation
2.0209870 × 10^6
Prime Factorization
2 × 23 × 5 × 87869
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20209870
Product of the distinct prime numbers
The prime factorization of 20209870 is 2 × 23 × 5 × 87869.
Since it has a total of 4 prime factors.
6 , 4 , 3 , 87 , 123 , 731 , 6131 , 3584 , 63813 , 43912 , 390 , 469649 , 3862730 , 9135039 , 43167743 , 5614877 , 581811239 , 384349076 , 6619967101 , 4851637720
n×2
40419740
n×3
60629610
n×4
80839480
n×5
101049350
n÷2
10104935
n÷3
6736623.3333333
n÷3
5052467.5
n÷5
4041974
n2
408438845416900
n3
8.2544959688256E+21
n4
1.6682229044549E+29
n5
3.3714568030056E+36
2 √n
4495.5388998428
3 √n
272.38791788186
4 √n
67.048780002643
5 √n
28.914301415383
1 , 2 , 5 , 10 , 23 , 46 , 115 , 230 , 87869 , 175738 , 439345 , 878690 , 2020987 , 4041974 , 10104935 , 20209870
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
-20209869
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 20209870 can be divided by 16 positive divisors.
The sum of these divisors (counting 20209870) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000110000011001110
3
Ternary
1102000202201201
4
Quaternary
1031012003032
5
Quinary
20133203440
6
Senary
2001100114
8
Octal
115060316
10
Decimal
20209870
12
Duodecimal
692763a
16
Hexadecimal
13460ce
20
Vigesimal
6664da
36
Base36
c161a
md5
0624afadc3da61f77304b90a7eb2015c
sha1
2807b2442f1c57bb6d07338e82f0f1f4fd186f2b
sha256
55df6c550aa66f8eec458f9c196fd0d2f8377b16955280c5f9b067ce1aa9c5fe
sha512
f0ab8d5dad318eedbe16a36a2e3b562098e37eb4c25a28b297f4bf855c974e322273ef41893a3b34e1a64fbe69a92e815e58a7708ca29200a780600087eb5dd5
ripemd-160
152638635164ca382601d6c5dae11bcd6eb459af
Diameter
40419740
Circumference
126982358.24401
Area
1.2831484762024E+15
Volume
3.4576351859666E+22
Surface area
5.1325939048097E+15
Circumference
126982358.24401
Perimeter
80839480
Area
408438845416900
Diagonal
28581072.247797
Surface area
2450633072501400
Volume
8.2544959688256E+21
Space diagonal
35004521.654362
Perimeter
60629610
Area
1.7685920801171E+14
Altitude
17502260.827181
Surface area
1.7685920801171E+14
Volume
9.7280167913894E+20
Height
9527024.082599