20185889 is an odd 8-digits composite number following 20185888
and preceding 20185890 . In scientific notation, it is written as 2.0185889 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 19756356 positive integers (up to 20185889) that are relatively prime to 20185889.
20185889 has 4 divisors, whose sum is 20615424
The reverse of 20185889 is 98858102
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million one hundred eighty-five thousand eight hundred eighty-nine
Scientific notation
2.0185889 × 10^7
Engineering notation
2.0185889 × 10^6
Prime Factorization
47 × 429487
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20185889
Product of the distinct prime numbers
The prime factorization of 20185889 is 47 × 429487.
Since it has a total of 2 prime factors.
2 , 3 , 13 , 82 , 784 , 19 , 673 , 8263 , 51191 , 61634 , 740385 , 929826 , 8379724 , 2127713 , 89295795 , 75404654 , 772379223 , 940130928 , 3042249684 , 7185871389
n×2
40371778
n×3
60557667
n×4
80743556
n×5
100929445
n÷2
10092944.5
n÷3
6728629.6666667
n÷3
5046472.25
n÷5
4037177.8
n2
407470114720321
n3
8.2251465065617E+21
n4
1.6603189439019E+29
n5
3.3515013906201E+36
2 √n
4492.8709084504
3 √n
272.28013688118
4 √n
67.028881151713
5 √n
28.907436223189
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
-20185888
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 20185889 can be divided by 4 positive divisors.
The sum of these divisors (counting 20185889) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000000001100100001
3
Ternary
1101222112211112
4
Quaternary
1031000030201
5
Quinary
20131422024
6
Senary
2000353105
8
Octal
115001441
10
Decimal
20185889
12
Duodecimal
6915795
16
Hexadecimal
1340321
20
Vigesimal
6634e9
36
Base36
c0nj5
md5
7e00ccf08b1dfe87c760d61a1e02ae5a
sha1
4846da4cdd6a787c38de6baad197407291c09455
sha256
c0c9187131534134f9b709756fe229a9eb54e16f41f166e631b4ce2068c36966
sha512
08578aeeb3648db7dbb4d0096de3dfef3ce703d24624b16c0a94e4a634b1114fecbd7c19b28b24e6f95e8cca0da9224c1e6e12dcb01f0e10ef824c128b954abf
ripemd-160
bc679981da815f3dd467f6f09142fb6207e89839
Diameter
40371778
Circumference
126831681.17716
Area
1.2801051189628E+15
Volume
3.4453413119619E+22
Surface area
5.120420475851E+15
Circumference
126831681.17716
Perimeter
80743556
Area
407470114720321
Diagonal
28547157.992358
Surface area
2444820688321926
Volume
8.2251465065617E+21
Space diagonal
34962985.343946
Perimeter
60557667
Area
1.7643973531538E+14
Altitude
17481492.671973
Surface area
1.7643973531538E+14
Volume
9.6934281184043E+20
Height
9515719.330786