20556661 is an odd 8-digits composite number following 20556660
and preceding 20556662 . In scientific notation, it is written as 2.0556661 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 20543500 positive integers (up to 20556661) that are relatively prime to 20556661.
20556661 has 4 divisors, whose sum is 20569824
The reverse of 20556661 is 16665502
Previous prime number is 11351
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million five hundred fifty-six thousand six hundred sixty-one
Scientific notation
2.0556661 × 10^7
Engineering notation
2.0556661 × 10^6
Prime Factorization
11351 × 1811
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20556661
Product of the distinct prime numbers
The prime factorization of 20556661 is 11351 × 1811.
Since it has a total of 2 prime factors.
3 , 8 , 68 , 4 , 232 , 313 , 9599 , 2058 , 93678 , 29443 , 713002 , 754370 , 2576256 , 2133632 , 30515150 , 56082298 , 381649269 , 795980784 , 3625866042 , 8081822618
n×2
41113322
n×3
61669983
n×4
82226644
n×5
102783305
n÷2
10278330.5
n÷3
6852220.3333333
n÷3
5139165.25
n÷5
4111332.2
n2
422576311468921
n3
8.686757981497E+21
n4
1.7857073901468E+29
n5
3.6708181464442E+36
2 √n
4533.9454121107
3 √n
273.93710261757
4 √n
67.33457813123
5 √n
29.012858159411
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
-20556660
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 20556661 can be divided by 4 positive divisors.
The sum of these divisors (counting 20556661) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110011010101101110101
3
Ternary
1102200101102211
4
Quaternary
1032122231311
5
Quinary
20230303121
6
Senary
2012333421
8
Octal
116325565
10
Decimal
20556661
12
Duodecimal
6a74271
16
Hexadecimal
139ab75
20
Vigesimal
689bd1
36
Base36
c8lmd
md5
eb62cff23cf528736f4280e0d87b223d
sha1
81a2479be0514ccd8fcb0881176453843c0dd6df
sha256
d4fd966007c9007fed5cb92d71b400e92633435a0c465d47e0fe749f049e8522
sha512
82cda98c81e1e8d30b1533ea098e63a7ea4515d4dcf8cc8d4e34a06fa7b4d22817e321f48c965a74a5b68c7286a942857b67c99a77c28c7ed930d6d250b9f45e
ripemd-160
a407d278bb9e2bb6a46fa87a658dfba7e5d9b075
Diameter
41113322
Circumference
129161310.35987
Area
1.3275626356918E+15
Volume
3.6387006744245E+22
Surface area
5.3102505427673E+15
Circumference
129161310.35987
Perimeter
82226644
Area
422576311468921
Diagonal
29071508.783306
Surface area
2535457868813526
Volume
8.686757981497E+21
Space diagonal
35605181.28597
Perimeter
61669983
Area
1.8298091038481E+14
Altitude
17802590.642985
Surface area
1.8298091038481E+14
Volume
1.0237442458738E+21
Height
9690502.9277687