20181730 is an even 8-digits composite number following 20181729
and preceding 20181731 . In scientific notation, it is written as 2.0181730 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 8072688 positive integers (up to 20181730) that are relatively prime to 20181730.
20181730 has 8 divisors, whose sum is 36327132
The reverse of 20181730 is 03718102
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred eighty-one thousand seven hundred thirty
Scientific notation
2.0181730 × 10^7
Engineering notation
2.0181730 × 10^6
Prime Factorization
2 × 5 × 2018173
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20181730
Product of the distinct prime numbers
The prime factorization of 20181730 is 2 × 5 × 2018173.
Since it has a total of 3 prime factors.
2 , 8 , 55 , 74 , 268 , 830 , 3132 , 9465 , 86058 , 97211 , 168456 , 144826 , 4716597 , 6580220 , 80383093 , 65691175 , 815746325 , 856270095 , 3344653301 , 1900257682
n×2
40363460
n×3
60545190
n×4
80726920
n×5
100908650
n÷2
10090865
n÷3
6727243.3333333
n÷3
5045432.5
n÷5
4036346
n2
407302225792900
n3
8.2200635493513E+21
n4
1.6589510313585E+29
n5
3.3480501798099E+36
2 √n
4492.4080402386
3 √n
272.26143584914
4 √n
67.025428310743
5 √n
28.906244936179
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
-20181729
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 20181730 can be divided by 8 positive divisors.
The sum of these divisors (counting 20181730) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111111001011100010
3
Ternary
1101222100010111
4
Quaternary
1030333023202
5
Quinary
20131303410
6
Senary
2000321534
8
Octal
114771342
10
Decimal
20181730
12
Duodecimal
69132aa
16
Hexadecimal
133f2e2
20
Vigesimal
662e6a
36
Base36
c0kbm
md5
c78c6c00f73e2d076193ca515b92a095
sha1
ba3c2de74ae93f89dc2cadd91fba50982439a1d2
sha256
0029e6838b169678e045d91c8dd2a98f9e284968f4184b54fa20687424126c2f
sha512
2e766b9d970d591263e2001d57832aedc7d48f67a6ee3d34b52e6e6d302195f95e4153cd052745913caba97c60b677fa8a6f63d589fdba611a79e050264a0905
ripemd-160
03b6cd2561c2ccc8793a70beddddbf06433d3d7c
Diameter
40363460
Circumference
126805549.40947
Area
1.2795776803417E+15
Volume
3.4432121678245E+22
Surface area
5.118310721367E+15
Circumference
126805549.40947
Perimeter
80726920
Area
407302225792900
Diagonal
28541276.278152
Surface area
2443813354757400
Volume
8.2200635493513E+21
Space diagonal
34955781.744637
Perimeter
60545190
Area
1.763670372773E+14
Altitude
17477890.872319
Surface area
1.763670372773E+14
Volume
9.6874377958845E+20
Height
9513758.759384