20155906 is an even 8-digits composite number following 20155905
and preceding 20155907 . In scientific notation, it is written as 2.0155906 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 9702000 positive integers (up to 20155906) that are relatively prime to 20155906.
20155906 has 16 divisors, whose sum is 31382208
The reverse of 20155906 is 60955102
Previous prime number is 43
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred fifty-five thousand nine hundred six
Scientific notation
2.0155906 × 10^7
Engineering notation
2.0155906 × 10^6
Prime Factorization
2 × 71 × 43 × 3301
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20155906
Product of the distinct prime numbers
The prime factorization of 20155906 is 2 × 71 × 43 × 3301.
Since it has a total of 4 prime factors.
5 , 6 , 62 , 74 , 110 , 106 , 6603 , 6296 , 67949 , 45820 , 291337 , 679045 , 2830811 , 4746327 , 60854190 , 62227500 , 976602267 , 693452611 , 9530551867 , 2262442894
n×2
40311812
n×3
60467718
n×4
80623624
n×5
100779530
n÷2
10077953
n÷3
6718635.3333333
n÷3
5038976.5
n÷5
4031181.2
n2
406260546680836
n3
8.1885493904075E+21
n4
1.6504763178941E+29
n5
3.32668455187E+36
2 √n
4489.5329378455
3 √n
272.14526014147
4 √n
67.003977030065
5 √n
28.89884361597
1 , 2 , 43 , 71 , 86 , 142 , 3053 , 3301 , 6106 , 6602 , 141943 , 234371 , 283886 , 468742 , 10077953 , 20155906
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
-20155905
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 20155906 can be divided by 16 positive divisors.
The sum of these divisors (counting 20155906) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111000111000000010
3
Ternary
1101221000201001
4
Quaternary
1030320320002
5
Quinary
20124442111
6
Senary
2000002214
8
Octal
114707002
10
Decimal
20155906
12
Duodecimal
690036a
16
Hexadecimal
1338e02
20
Vigesimal
65j9f6
36
Base36
c00ea
md5
11b0e06f2227d8257a5f88feee6b53a2
sha1
ac478fd3512621f65064436815b34bca6c6efb4b
sha256
09927204ea47af19d190ebd44f60531b643418a4ca77d847d3e785a8b19f4e0f
sha512
0edd79a1044e47c15cdc8cf35fdfb093a8d5cb0443f91d3fe61f8ee8a84e0f44a82d362af4b81b46906c2abe48a04f774095a8ea37d62d5b37e937690d5e66f1
ripemd-160
121af16dc9f395d86890e4da1720d906026dbba7
Diameter
40311812
Circumference
126643292.43209
Area
1.2763051488959E+15
Volume
3.4300115477949E+22
Surface area
5.1052205955836E+15
Circumference
126643292.43209
Perimeter
80623624
Area
406260546680836
Diagonal
28504755.627117
Surface area
2437563280085016
Volume
8.1885493904075E+21
Space diagonal
34911053.264582
Perimeter
60467718
Area
1.7591597699048E+14
Altitude
17455526.632291
Surface area
1.7591597699048E+14
Volume
9.6502980033969E+20
Height
9501585.2090391