20621894 is an even 8-digits composite number following 20621893
and preceding 20621895 . In scientific notation, it is written as 2.0621894 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 10304280 positive integers (up to 20621894) that are relatively prime to 20621894.
20621894 has 8 divisors, whose sum is 30952848
The reverse of 20621894 is 49812602
Previous prime number is 4231
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million six hundred twenty-one thousand eight hundred ninety-four
Scientific notation
2.0621894 × 10^7
Engineering notation
2.0621894 × 10^6
Prime Factorization
2 × 4231 × 2437
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20621894
Product of the distinct prime numbers
The prime factorization of 20621894 is 2 × 4231 × 2437.
Since it has a total of 3 prime factors.
6 , 2 , 77 , 51 , 972 , 71 , 1150 , 7453 , 81535 , 16631 , 181026 , 189562 , 7816225 , 7040497 , 80865968 , 51115150 , 503345784 , 620508898 , 9271641630 , 5875109216
n×2
41243788
n×3
61865682
n×4
82487576
n×5
103109470
n÷2
10310947
n÷3
6873964.6666667
n÷3
5155473.5
n÷5
4124378.8
n2
425262512147236
n3
8.769718447674E+21
n4
1.8084820423778E+29
n5
3.7294324978818E+36
2 √n
4541.1335589256
3 √n
274.22656062011
4 √n
67.387933333243
5 √n
29.031248286196
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
-20621893
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 20621894 can be divided by 8 positive divisors.
The sum of these divisors (counting 20621894) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110101010101001000110
3
Ternary
1102210200220212
4
Quaternary
1032222221012
5
Quinary
20234400034
6
Senary
2013555422
8
Octal
116525106
10
Decimal
20621894
12
Duodecimal
6aa5b72
16
Hexadecimal
13aaa46
20
Vigesimal
68heee
36
Base36
c9zye
md5
e7741741170a554cfbb593475eb8f183
sha1
7d50eecf385eb90d9ef86fa4968bb88839839b45
sha256
0fe9396941969602acdd1503950cf7ab7950fca07c992de04f7bd8810c7a22bd
sha512
adcc7be3291d61f1aa112f3e709e026b12cd70b1a6550a01381f7222471af3afefc5926ca69a858c0949cde7ce543c89e219e87049b55df91001a4edbcaf0a13
ripemd-160
cf8b3616e19510bf1bb1b952a5aed2bfaa690117
Diameter
41243788
Circumference
129571181.38701
Area
1.3360015840089E+15
Volume
3.6734510732351E+22
Surface area
5.3440063360356E+15
Circumference
129571181.38701
Perimeter
82487576
Area
425262512147236
Diagonal
29163762.17662
Surface area
2551575072883416
Volume
8.769718447674E+21
Space diagonal
35718168.1563
Perimeter
61865682
Area
1.8414406939835E+14
Altitude
17859084.07815
Surface area
1.8414406939835E+14
Volume
1.0335212305745E+21
Height
9721254.0588735