20621875 is an odd 8-digits composite number following 20621874
and preceding 20621876 . In scientific notation, it is written as 2.0621875 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 16495000 positive integers (up to 20621875) that are relatively prime to 20621875.
20621875 has 4 divisors, whose sum is 20631600
The reverse of 20621875 is 57812602
Previous prime number is 3125
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million six hundred twenty-one thousand eight hundred seventy-five
Scientific notation
2.0621875 × 10^7
Engineering notation
2.0621875 × 10^6
Prime Factorization
3125 × 6599
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20621875
Product of the distinct prime numbers
The prime factorization of 20621875 is 3125 × 6599.
Since it has a total of 2 prime factors.
1 , 3 , 38 , 65 , 854 , 795 , 1388 , 190 , 73835 , 32638 , 644547 , 301138 , 8324417 , 6561518 , 75560974 , 91077317 , 653070847 , 601569769 , 7388747478 , 2458643507
n×2
41243750
n×3
61865625
n×4
82487500
n×5
103109375
n÷2
10310937.5
n÷3
6873958.3333333
n÷3
5155468.75
n÷5
4124375
n2
425261728515625
n3
8.7696942077332E+21
n4
1.808475377401E+29
n5
3.7294153173341E+36
2 √n
4541.1314669364
3 √n
274.22647640045
4 √n
67.387917811255
5 √n
29.031242936601
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
-20621874
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 20621875 can be divided by 4 positive divisors.
The sum of these divisors (counting 20621875) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110101010101000110011
3
Ternary
1102210200220011
4
Quaternary
1032222220303
5
Quinary
20234400000
6
Senary
2013555351
8
Octal
116525063
10
Decimal
20621875
12
Duodecimal
6aa5b57
16
Hexadecimal
13aaa33
20
Vigesimal
68hedf
36
Base36
c9zxv
md5
14017ffe14b94ec76a35d17a085e3979
sha1
9a5888601fcd418211ab9c09b38cfac6164dd9ae
sha256
0075592e8f45baba94eac662a454ae2963c914d239197b74cf71d3da1ca8d795
sha512
7b407a1446897dd190509b55de8392d9d4be964b16209f4a7d62ffa81bcc71efb09bd6afc264c15a359d47acc28a8ea056fbaa4bd4db9eec0ea7f6d3e40c5831
ripemd-160
581155abf3ce95892617c9de91ed7842532a081a
Diameter
41243750
Circumference
129571062.00649
Area
1.3359991221576E+15
Volume
3.6734409196325E+22
Surface area
5.3439964886303E+15
Circumference
129571062.00649
Perimeter
82487500
Area
425261728515625
Diagonal
29163735.306563
Surface area
2551570371093750
Volume
8.7696942077332E+21
Space diagonal
35718135.247334
Perimeter
61865625
Area
1.8414373007591E+14
Altitude
17859067.623667
Surface area
1.8414373007591E+14
Volume
1.0335183738701E+21
Height
9721245.1021876