20061985 is an odd 8-digits composite number following 20061984
and preceding 20061986 . In scientific notation, it is written as 2.0061985 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 15786240 positive integers (up to 20061985) that are relatively prime to 20061985.
20061985 has 8 divisors, whose sum is 24469416
The reverse of 20061985 is 58916002
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million sixty-one thousand nine hundred eighty-five
Scientific notation
2.0061985 × 10^7
Engineering notation
2.0061985 × 10^6
Prime Factorization
5 × 61 × 65777
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20061985
Product of the distinct prime numbers
The prime factorization of 20061985 is 5 × 61 × 65777.
Since it has a total of 3 prime factors.
7 , 5 , 25 , 78 , 979 , 367 , 3928 , 1209 , 59344 , 20693 , 640753 , 65452 , 1368010 , 2361525 , 28242 , 74089850 , 15303097 , 719360024 , 8498951608 , 2034927642
n×2
40123970
n×3
60185955
n×4
80247940
n×5
100309925
n÷2
10030992.5
n÷3
6687328.3333333
n÷3
5015496.25
n÷5
4012397
n2
402483242140225
n3
8.0746127665686E+21
n4
1.6199276020371E+29
n5
3.2498963253154E+36
2 √n
4479.0607274294
3 √n
271.72189441796
4 √n
66.925785220865
5 √n
28.871861137798
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
-20061984
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 20061985 can be divided by 8 positive divisors.
The sum of these divisors (counting 20061985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100100001111100100001
3
Ternary
1101202020212111
4
Quaternary
1030201330201
5
Quinary
20113440420
6
Senary
1553555321
8
Octal
114417441
10
Decimal
20061985
12
Duodecimal
6875b41
16
Hexadecimal
1321f21
20
Vigesimal
657ej5
36
Base36
bxzxd
md5
87672e20fc23b043a03deb810b374b28
sha1
7b1728d372f9e576acde1ddf391de2286c155f98
sha256
ee8c641fe853094caad2e93cdf76e4e8c9bd0c8c7135b56504675b7882780c6a
sha512
cea0532982814fe0d3bd23ab017c5763cdea17d4c5576b9b1877b05b4746ca49353a8241a9f066169675cf50a7302346223832d423682219c3d74e5d1da58902
ripemd-160
968e4375dbb3534bf318bedb91da868198dedec5
Diameter
40123970
Circumference
126053169.38486
Area
1.2644383967007E+15
Volume
3.3822858864046E+22
Surface area
5.0577535868029E+15
Circumference
126053169.38486
Perimeter
80247940
Area
402483242140225
Diagonal
28371931.275126
Surface area
2414899452841350
Volume
8.0746127665686E+21
Space diagonal
34748377.320685
Perimeter
60185955
Area
1.7428035614548E+14
Altitude
17374188.660342
Surface area
1.7428035614548E+14
Volume
9.5160224044935E+20
Height
9457310.4250419