20171998 is an even 8-digits composite number following 20171997
and preceding 20171999 . In scientific notation, it is written as 2.0171998 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 7859160 positive integers (up to 20171998) that are relatively prime to 20171998.
20171998 has 16 divisors, whose sum is 37724544
The reverse of 20171998 is 89917102
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million one hundred seventy-one thousand nine hundred ninety-eight
Scientific notation
2.0171998 × 10^7
Engineering notation
2.0171998 × 10^6
Prime Factorization
2 × 7 × 11 × 130987
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20171998
Product of the distinct prime numbers
The prime factorization of 20171998 is 2 × 7 × 11 × 130987.
Since it has a total of 4 prime factors.
3 , 3 , 84 , 26 , 24 , 651 , 9296 , 6898 , 37990 , 17754 , 289495 , 372811 , 3685322 , 3864330 , 2136825 , 57227876 , 813581063 , 790451644 , 6769837874 , 7233635368
n×2
40343996
n×3
60515994
n×4
80687992
n×5
100859990
n÷2
10085999
n÷3
6723999.3333333
n÷3
5042999.5
n÷5
4034399.6
n2
406909503312004
n3
8.2081776869907E+21
n4
1.6557534388562E+29
n5
3.3399855057101E+36
2 √n
4491.3247488909
3 √n
272.21766566177
4 √n
67.017346626757
5 √n
28.903456574095
1 , 2 , 7 , 11 , 14 , 22 , 77 , 154 , 130987 , 261974 , 916909 , 1440857 , 1833818 , 2881714 , 10085999 , 20171998
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
-20171997
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 20171998 can be divided by 16 positive divisors.
The sum of these divisors (counting 20171998) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111100110011011110
3
Ternary
1101221211210001
4
Quaternary
1030330303132
5
Quinary
20131000443
6
Senary
2000204514
8
Octal
114746336
10
Decimal
20171998
12
Duodecimal
690973a
16
Hexadecimal
133ccde
20
Vigesimal
6619ji
36
Base36
c0cta
md5
94860e0865351352cfc07cc00142cdc9
sha1
1e76f829ec629a2cc0a2d9e952cb8dafb7036adc
sha256
a11ba4ed2ce2c3a907d321a5c51a6e77a870bccc50e858ef5502a955029dcd65
sha512
0b55bfb192d696d61b72afb0769438ba3c93e65caf2ec7c8bf533b2e50a98f794e2b895b9cc3bcb6cc4ea58062a1d1024147cc8c3fde749a5a2936e3f37a3aea
ripemd-160
8b5676a5c3462855d3754930e5c9916d5ef8ef21
Diameter
40343996
Circumference
126744401.45006
Area
1.2783439062809E+15
Volume
3.4382334294413E+22
Surface area
5.1133756251235E+15
Circumference
126744401.45006
Perimeter
80687992
Area
406909503312004
Diagonal
28527513.151763
Surface area
2441457019872024
Volume
8.2081776869907E+21
Space diagonal
34938925.426178
Perimeter
60515994
Area
1.7619698345475E+14
Altitude
17469462.713089
Surface area
1.7619698345475E+14
Volume
9.6734301727588E+20
Height
9509171.0505877