20155851 is an odd 8-digits composite number following 20155850
and preceding 20155852 . In scientific notation, it is written as 2.0155851 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 13336704 positive integers (up to 20155851) that are relatively prime to 20155851.
20155851 has 16 divisors, whose sum is 30084000
The reverse of 20155851 is 15855102
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred fifty-five thousand eight hundred fifty-one
Scientific notation
2.0155851 × 10^7
Engineering notation
2.0155851 × 10^6
Prime Factorization
3 × 9 × 137 × 5449
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20155851
Product of the distinct prime numbers
The prime factorization of 20155851 is 3 × 9 × 137 × 5449.
Since it has a total of 4 prime factors.
10 , 5 , 56 , 87 , 389 , 786 , 7427 , 1800 , 77860 , 75784 , 93908 , 788587 , 2365705 , 3114383 , 6467016 , 47542223 , 680429222 , 729273117 , 8453008707 , 5558393997
n×2
40311702
n×3
60467553
n×4
80623404
n×5
100779255
n÷2
10077925.5
n÷3
6718617
n÷3
5038962.75
n÷5
4031170.2
n2
406258329534201
n3
8.1884823576003E+21
n4
1.6504583031592E+29
n5
3.326639164019E+36
2 √n
4489.5268124826
3 √n
272.14501260438
4 √n
67.003931321099
5 √n
28.898827844532
1 , 3 , 9 , 27 , 137 , 411 , 1233 , 3699 , 5449 , 16347 , 49041 , 147123 , 746513 , 2239539 , 6718617 , 20155851
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
-20155850
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 20155851 can be divided by 16 positive divisors.
The sum of these divisors (counting 20155851) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111000110111001011
3
Ternary
1101221000122000
4
Quaternary
1030320313023
5
Quinary
20124441401
6
Senary
2000002043
8
Octal
114706713
10
Decimal
20155851
12
Duodecimal
6900323
16
Hexadecimal
1338dcb
20
Vigesimal
65j9cb
36
Base36
c00cr
md5
21b9e5e24e1bda74e9145c99111993d1
sha1
35b3d7aac271f9564e0e7a572f44176ea9be968b
sha256
4cf677de1cdcb77390fccdb850362ec0be34f86906164800b226ba5148dd1c84
sha512
8b3bd90323a7730eeb8d4d6258148ccbe22432faf542a2eb194521078f8626707e95f58be1e188dd14e2b6c023411dea6a751a779e25dcbb29de233ac1b26833
ripemd-160
c18f4a098948d560b5cbd57c039989138d0d5e42
Diameter
40311702
Circumference
126642946.8569
Area
1.2762981835243E+15
Volume
3.4299834691582E+22
Surface area
5.1051927340972E+15
Circumference
126642946.8569
Perimeter
80623404
Area
406258329534201
Diagonal
28504677.845371
Surface area
2437549977205206
Volume
8.1884823576003E+21
Space diagonal
34910958.001788
Perimeter
60467553
Area
1.7591501693782E+14
Altitude
17455479.000894
Surface area
1.7591501693782E+14
Volume
9.6502190044759E+20
Height
9501559.2817904