20177985 is an odd 8-digits composite number following 20177984
and preceding 20177986 . In scientific notation, it is written as 2.0177985 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 10740288 positive integers (up to 20177985) that are relatively prime to 20177985.
20177985 has 16 divisors, whose sum is 32348736
The reverse of 20177985 is 58977102
Previous prime number is 677
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million one hundred seventy-seven thousand nine hundred eighty-five
Scientific notation
2.0177985 × 10^7
Engineering notation
2.0177985 × 10^6
Prime Factorization
3 × 5 × 677 × 1987
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20177985
Product of the distinct prime numbers
The prime factorization of 20177985 is 3 × 5 × 677 × 1987.
Since it has a total of 4 prime factors.
8 , 10 , 21 , 41 , 774 , 588 , 1153 , 7450 , 79643 , 51769 , 11757 , 156739 , 6171715 , 1109384 , 44332940 , 89250936 , 108443245 , 118786336 , 6778677026 , 4243064645
n×2
40355970
n×3
60533955
n×4
80711940
n×5
100889925
n÷2
10088992.5
n÷3
6725995
n÷3
5044496.25
n÷5
4035597
n2
407151078660225
n3
8.2154883579398E+21
n4
1.6577200085418E+29
n5
3.3449449466557E+36
2 √n
4491.9912065809
3 √n
272.24459417845
4 √n
67.022318719818
5 √n
28.905172065584
1 , 3 , 5 , 15 , 677 , 1987 , 2031 , 3385 , 5961 , 9935 , 10155 , 29805 , 1345199 , 4035597 , 6725995 , 20177985
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
-20177984
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 20177985 can be divided by 16 positive divisors.
The sum of these divisors (counting 20177985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111110010001000001
3
Ternary
1101222010222210
4
Quaternary
1030332101001
5
Quinary
20131143420
6
Senary
2000252333
8
Octal
114762101
10
Decimal
20177985
12
Duodecimal
69110a9
16
Hexadecimal
133e441
20
Vigesimal
6624j5
36
Base36
c0hfl
md5
fac5918432f1893ab524e076770d825d
sha1
1c77ff5593d1f2d3e1185cec491eb56d46db6021
sha256
694f22573bf080ee95ab796b882d616b31c00009bd2b7b5cd40595f8ba72d45f
sha512
8bbab5b95a2969e227035b5a387154e0bd8acf922272a71a2550c0ff4bcb54446f8215ad7825cb49209a7ebc506b9c3a2970c200306b530ad6ac1e46239c5620
ripemd-160
6bcce948b33403cb6f68baad9208a0ee24a095cc
Diameter
40355970
Circumference
126782018.88049
Area
1.2791028376201E+15
Volume
3.4412957161275E+22
Surface area
5.1164113504805E+15
Circumference
126782018.88049
Perimeter
80711940
Area
407151078660225
Diagonal
28535980.048361
Surface area
2442906471961350
Volume
8.2154883579398E+21
Space diagonal
34949295.214363
Perimeter
60533955
Area
1.76301588649E+14
Altitude
17474647.607181
Surface area
1.76301588649E+14
Volume
9.6820458810973E+20
Height
9511993.3494536