20000905 is an odd 8-digits composite number following 20000904
and preceding 20000906 . In scientific notation, it is written as 2.0000905 × 10^7.
The sum of its digits is 16. It has a total of 4 prime factors and 16 positive divisors.
There are 15344640 positive integers (up to 20000905) that are relatively prime to 20000905.
20000905 has 16 divisors, whose sum is 25004304
The reverse of 20000905 is 50900002
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty million nine hundred five
Scientific notation
2.0000905 × 10^7
Engineering notation
2.0000905 × 10^6
Prime Factorization
5 × 37 × 73 × 1481
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20000905
Product of the distinct prime numbers
The prime factorization of 20000905 is 5 × 37 × 73 × 1481.
Since it has a total of 4 prime factors.
6 , 3 , 66 , 40 , 578 , 568 , 2277 , 9075 , 55848 , 74473 , 95129 , 375607 , 882305 , 8319139 , 73378321 , 88178227 , 299250069 , 406834260 , 1204529062 , 9767976971
n×2
40001810
n×3
60002715
n×4
80003620
n×5
100004525
n÷2
10000452.5
n÷3
6666968.3333333
n÷3
5000226.25
n÷5
4000181
n2
400036200819025
n3
8.0010860491422E+21
n4
1.6002896196572E+29
n5
3.200724065525E+36
2 √n
4472.237135931
3 √n
271.44585584431
4 √n
66.874786997275
5 √n
28.854259242101
1 , 5 , 37 , 73 , 185 , 365 , 1481 , 2701 , 7405 , 13505 , 54797 , 108113 , 273985 , 540565 , 4000181 , 20000905
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
-20000904
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 20000905 can be divided by 16 positive divisors.
The sum of these divisors (counting 20000905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100010011000010001001
3
Ternary
1101122011002021
4
Quaternary
1030103002021
5
Quinary
20110012110
6
Senary
1552404441
8
Octal
114230211
10
Decimal
20000905
12
Duodecimal
6846721
16
Hexadecimal
1313089
20
Vigesimal
650255
36
Base36
bwosp
md5
230eb480379f4db43c48e3071bb050a6
sha1
bfc3e6ef21ee53aa3b76758f1a92b24f8b0b645e
sha256
16429e36982951615cc787ac871aded5dacb1e95f70dc2473d6bb0427b6157e2
sha512
3c6ef974172aea53fca4459935b884916b67cf085bf56182615b854694d466ee277b8752b4046a317722b3676a7d2c2386d7013c25efb13f6228a65211314ff5
ripemd-160
f67d4c527d7d7143c30267ed5dc2312bd7a1f2e7
Diameter
40001810
Circumference
125669392.42629
Area
1.256750789663E+15
Volume
3.35148708703E+22
Surface area
5.0270031586521E+15
Circumference
125669392.42629
Perimeter
80003620
Area
400036200819025
Diagonal
28285551.110736
Surface area
2400217204914150
Volume
8.0010860491422E+21
Space diagonal
34642583.657358
Perimeter
60002715
Area
1.7322075617134E+14
Altitude
17321291.828679
Surface area
1.7322075617134E+14
Volume
9.4293703370093E+20
Height
9428517.036912