20381685 is an odd 8-digits composite number following 20381684
and preceding 20381686 . In scientific notation, it is written as 2.0381685 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 10870224 positive integers (up to 20381685) that are relatively prime to 20381685.
20381685 has 4 divisors, whose sum is 21740480
The reverse of 20381685 is 58618302
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million three hundred eighty-one thousand six hundred eighty-five
Scientific notation
2.0381685 × 10^7
Engineering notation
2.0381685 × 10^6
Prime Factorization
15 × 1358779
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20381685
Product of the distinct prime numbers
The prime factorization of 20381685 is 15 × 1358779.
Since it has a total of 2 prime factors.
7 , 1 , 34 , 79 , 233 , 872 , 4870 , 5988 , 97993 , 91887 , 254836 , 388628 , 3960805 , 433601 , 25756948 , 37734358 , 738208397 , 918694294 , 5182171422 , 5621643495
n×2
40763370
n×3
61145055
n×4
81526740
n×5
101908425
n÷2
10190842.5
n÷3
6793895
n÷3
5095421.25
n÷5
4076337
n2
415413083439225
n3
8.466818611537E+21
n4
1.7256802989248E+29
n5
3.5172272263392E+36
2 √n
4514.6079564011
3 √n
273.15764620495
4 √n
67.1908323836
5 √n
28.963298290752
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
-20381684
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 20381685 can be divided by 4 positive divisors.
The sum of these divisors (counting 20381685) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101101111111111110101
3
Ternary
1102100111102020
4
Quaternary
1031233333311
5
Quinary
20204203220
6
Senary
2004503353
8
Octal
115577765
10
Decimal
20381685
12
Duodecimal
69aab59
16
Hexadecimal
136fff5
20
Vigesimal
677e45
36
Base36
c4ulx
md5
f98355b787492eef335a01036b2a14c1
sha1
2d6687b62565b06e58b06a4fb5e255a538d1cf1c
sha256
1a9eb223bd8ad53994983ea14cef4b4951e18ae6c218f191a638c019858f0f72
sha512
43c7923f11cec1d781d93e2df65c47360ecb23f04878a01070029c2cafc3abe75226696ac8a0df2a6a11deb4ec2972c5b127f802364055882bb6f55e0cf96399
ripemd-160
07e717e31309972a69ba331b1f9826920cd46e76
Diameter
40763370
Circumference
128061903.72756
Area
1.3050586911378E+15
Volume
3.5465726865709E+22
Surface area
5.220234764551E+15
Circumference
128061903.72756
Perimeter
81526740
Area
415413083439225
Diagonal
28824055.351016
Surface area
2492478500635350
Volume
8.466818611537E+21
Space diagonal
35302113.963864
Perimeter
61145055
Area
1.798791416614E+14
Altitude
17651056.981932
Surface area
1.798791416614E+14
Volume
9.9782414254905E+20
Height
9608018.4503388