20155557 is an odd 8-digits composite number following 20155556
and preceding 20155558 . In scientific notation, it is written as 2.0155557 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 12583680 positive integers (up to 20155557) that are relatively prime to 20155557.
20155557 has 16 divisors, whose sum is 28596672
The reverse of 20155557 is 75555102
Previous prime number is 227
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred fifty-five thousand five hundred fifty-seven
Scientific notation
2.0155557 × 10^7
Engineering notation
2.0155557 × 10^6
Prime Factorization
3 × 17 × 227 × 1741
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20155557
Product of the distinct prime numbers
The prime factorization of 20155557 is 3 × 17 × 227 × 1741.
Since it has a total of 4 prime factors.
5 , 9 , 38 , 69 , 880 , 102 , 9324 , 6094 , 35264 , 19800 , 831753 , 226946 , 5311500 , 5178171 , 46434168 , 769796 , 959198715 , 703398756 , 9780039830 , 3663481160
n×2
40311114
n×3
60466671
n×4
80622228
n×5
100777785
n÷2
10077778.5
n÷3
6718519
n÷3
5038889.25
n÷5
4031111.4
n2
406246477980249
n3
8.1881240429802E+21
n4
1.6503620087136E+29
n5
3.3263965537261E+36
2 √n
4489.4940694916
3 √n
272.14368939848
4 √n
67.003686984311
5 √n
28.898743538442
1 , 3 , 17 , 51 , 227 , 681 , 1741 , 3859 , 5223 , 11577 , 29597 , 88791 , 395207 , 1185621 , 6718519 , 20155557
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
-20155556
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 20155557 can be divided by 16 positive divisors.
The sum of these divisors (counting 20155557) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111000110010100101
3
Ternary
1101221000020010
4
Quaternary
1030320302211
5
Quinary
20124434212
6
Senary
2000000433
8
Octal
114706245
10
Decimal
20155557
12
Duodecimal
6900119
16
Hexadecimal
1338ca5
20
Vigesimal
65j8hh
36
Base36
c004l
md5
36194c8a8c35e4db8cbedf4962b0aa92
sha1
abc327855f3825bcc5f24deb2a7d37db5d3c9113
sha256
0ed258c426f4738e01bd085d111858cad953cc3d3a0a0530a7dbfa002d695e0a
sha512
ea1586aafcbb2216570d117d91e4efc8f52a9bfab877e417a4b16a59a19aad16cd00134d1ca7782118bd2f69b4f6a3d8e0005d0ca1da5b02be673085aaafde58
ripemd-160
02d31eaed188cb6ee2cd22ceb29105068c9a5c94
Diameter
40311114
Circumference
126641099.60042
Area
1.2762609507695E+15
Volume
3.4298333786811E+22
Surface area
5.1050438030779E+15
Circumference
126641099.60042
Perimeter
80622228
Area
406246477980249
Diagonal
28504262.066584
Surface area
2437478867881494
Volume
8.1881240429802E+21
Space diagonal
34910448.778851
Perimeter
60466671
Area
1.7590988506443E+14
Altitude
17455224.389425
Surface area
1.7590988506443E+14
Volume
9.6497967266465E+20
Height
9501420.6888613