2018668421 is an odd 10-digits composite number following 2018668420
and preceding 2018668422 . In scientific notation, it is written as 2.018668421 × 10^9.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 1546324080 positive integers (up to 2018668421) that are relatively prime to 2018668421.
2018668421 has 8 divisors, whose sum is 2310609600
The reverse of 2018668421 is 1248668102
Previous prime number is 649
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 38
Digital Root 2
Name
two billion eighteen million six hundred sixty-eight thousand four hundred twenty-one
Scientific notation
2.018668421 × 10^9
Engineering notation
2.018668421 × 10^9
Prime Factorization
7 × 649 × 444347
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2018668421
Product of the distinct prime numbers
The prime factorization of 2018668421 is 7 × 649 × 444347.
Since it has a total of 3 prime factors.
1 , 6 , 23 , 87 , 742 , 867 , 6863 , 8622 , 95069 , 81426 , 397246 , 969587 , 1896243 , 2501498 , 54100421 , 61480321 , 834832976 , 622371429 , 2060730350 , 9705264636
n×2
4037336842
n×3
6056005263
n×4
8074673684
n×5
10093342105
n÷2
1009334210.5
n÷3
672889473.66667
n÷3
504667105.25
n÷5
403733684.2
n2
4075022193942633241
n3
8.2261186177861E+27
n4
1.6605805881125E+37
n5
3.3521615937483E+46
2 √n
44929.59404446
3 √n
1263.8290384347
4 √n
211.96602096671
5 √n
72.612768911819
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
-2018668420
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 2018668421 can be divided by 8 positive divisors.
The sum of these divisors (counting 2018668421) is 1, the average is 0.125.
Base
System
Value
2
Binary
1111000010100100110111110000101
3
Ternary
12012200110222111002
4
Quaternary
1320110212332011
5
Quinary
13113234342141
6
Senary
532151023045
8
Octal
17024467605
10
Decimal
2018668421
12
Duodecimal
48406aa85
16
Hexadecimal
78526f85
20
Vigesimal
1bagdb11
36
Base36
xdv2it
md5
ba4c8e1362967033017e7958c16dbc9a
sha1
5ed60f7c724e923d9a01ae8a33d73a7125d9dd61
sha256
5627e3be450bbde077047bbc384e201a5d980b713e9b349ec5395cec76446d43
sha512
f7e564121d1a8b8cd2d60f739b0c4b21316ae8b989a18fbe77ee6bebc594045581692f33dd082c9825ed6f36434599725f466e011ac46b9a2f136d0b60fc010a
ripemd-160
536dd69e565c6ce36ab5c46bb174acee2122f3ef
Diameter
4037336842
Circumference
12683667762.895
Area
1.2802059787706E+19
Volume
3.4457485089594E+28
Surface area
5.1208239150822E+19
Circumference
12683667762.895
Perimeter
8074673684
Area
4075022193942633241
Diagonal
2854828258.9125
Surface area
2.4450133163656E+19
Volume
8.2261186177861E+27
Space diagonal
3496436268.8068
Perimeter
6056005263
Area
1.7645363704699E+18
Altitude
1748218134.4034
Surface area
1.7645363704699E+18
Volume
9.6945737624691E+26
Height
951609419.63749