20150421 is an odd 8-digits composite number following 20150420
and preceding 20150422 . In scientific notation, it is written as 2.0150421 × 10^7.
The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors.
There are 13423200 positive integers (up to 20150421) that are relatively prime to 20150421.
20150421 has 8 divisors, whose sum is 26888064
The reverse of 20150421 is 12405102
Previous prime number is 2351
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty million one hundred fifty thousand four hundred twenty-one
Scientific notation
2.0150421 × 10^7
Engineering notation
2.0150421 × 10^6
Prime Factorization
3 × 2351 × 2857
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20150421
Product of the distinct prime numbers
The prime factorization of 20150421 is 3 × 2351 × 2857.
Since it has a total of 3 prime factors.
9 , 1 , 42 , 18 , 820 , 321 , 1386 , 3885 , 47754 , 26696 , 639265 , 101777 , 4116952 , 5456211 , 30207206 , 75974007 , 456359224 , 878445539 , 9884152058 , 1189261787
n×2
40300842
n×3
60451263
n×4
80601684
n×5
100752105
n÷2
10075210.5
n÷3
6716807
n÷3
5037605.25
n÷5
4030084.2
n2
406039466477241
n3
8.1818661921318E+21
n4
1.6486804833712E+29
n5
3.3221605834414E+36
2 √n
4488.9220309558
3 √n
272.12057172548
4 √n
66.999418138934
5 √n
28.89727060393
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20150420
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20150421 can be divided by 8 positive divisors.
The sum of these divisors (counting 20150421) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110111100010010101
3
Ternary
1101220202011220
4
Quaternary
1030313202111
5
Quinary
20124303141
6
Senary
1555520553
8
Octal
114674225
10
Decimal
20150421
12
Duodecimal
68b9159
16
Hexadecimal
1337895
20
Vigesimal
65ig11
36
Base36
bzw5x
md5
ac7e31fb2b5c5cde85d64d7d58e6bda5
sha1
d28ad4063cfe1f2f93b35a6d98d56f9b775fb112
sha256
ac7c645447acd3be92718a3f2dae840fc3b26d255f0ac899d7b1dde03aaf300d
sha512
6643999790bbb64d82a7363cf3334b69157d4659ec43191aea5f16a970303fad9839d749b268f884aed373805023b22e392b19125412cec2b4684768f23fe2e0
ripemd-160
d5cec18c88b6d4454c4da6db80fec8f096cc5b9d
Diameter
40300842
Circumference
126608829.16068
Area
1.2756106049524E+15
Volume
3.4272120962475E+22
Surface area
5.1024424198097E+15
Circumference
126608829.16068
Perimeter
80601684
Area
406039466477241
Diagonal
28496998.665728
Surface area
2436236798863446
Volume
8.1818661921318E+21
Space diagonal
34901552.965903
Perimeter
60451263
Area
1.7582024645419E+14
Altitude
17450776.482951
Surface area
1.7582024645419E+14
Volume
9.6424217786956E+20
Height
9498999.5552425