18171421 is an odd 8-digits composite number following 18171420
and preceding 18171422 . In scientific notation, it is written as 1.8171421 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 6 positive divisors.
There are 17825808 positive integers (up to 18171421) that are relatively prime to 18171421.
18171421 has 6 divisors, whose sum is 18523610
The reverse of 18171421 is 12417181
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighteen million one hundred seventy-one thousand four hundred twenty-one
Scientific notation
1.8171421 × 10^7
Engineering notation
1.8171421 × 10^6
Prime Factorization
53 × 53 × 6469
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
342857
Product of the distinct prime numbers
The prime factorization of 18171421 is 53 × 53 × 6469.
Since it has a total of 3 prime factors.
4 , 8 , 18 , 48 , 492 , 619 , 4803 , 3885 , 8783 , 38842 , 416845 , 227802 , 7798660 , 6906328 , 16896001 , 472172 , 351118698 , 271129410 , 1355783600 , 3717123991
n×2
36342842
n×3
54514263
n×4
72685684
n×5
90857105
n÷2
9085710.5
n÷3
6057140.3333333
n÷3
4542855.25
n÷5
3634284.2
n2
330200541159241
n3
6.0002130478324E+21
n4
1.0903239738186E+29
n5
1.981273595465E+36
2 √n
4262.7949751308
3 √n
262.90345697727
4 √n
65.290083283227
5 √n
28.305952794633
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18171420
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18171421 can be divided by 6 positive divisors.
The sum of these divisors (counting 18171421) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1000101010100011000011101
3
Ternary
1021012012111121
4
Quaternary
1011110120131
5
Quinary
14122441141
6
Senary
1445250541
8
Octal
105243035
10
Decimal
18171421
12
Duodecimal
6103a51
16
Hexadecimal
115461d
20
Vigesimal
5db8b1
36
Base36
ath5p
md5
beca678e9cb239e0805a11eceb747a81
sha1
baf0b0a0a0287e99f1e0cb5d6e690b73543ee3a0
sha256
9996d1e88e072a58c440e9be7d51e597fada2cf7ac05e76305da0356c24b427d
sha512
12432286cbf32d6242662f9fd67b3c3c1e89853c4853de09ec1f28ba130773d3c7b7dcb1d07935422094fb9b4ac7f89425bd5e23d1e6d676d17172ad381dcabb
ripemd-160
a2ba736a043875db9bb1bb2e5012d590d6f015ec
Diameter
36342842
Circumference
114174405.43777
Area
1.0373555943172E+15
Volume
2.5133633641392E+22
Surface area
4.149422377269E+15
Circumference
114174405.43777
Perimeter
72685684
Area
330200541159241
Diagonal
25698270.025791
Surface area
1981203246955446
Volume
6.0002130478324E+21
Space diagonal
31473824.417724
Perimeter
54514263
Area
1.4298102849364E+14
Altitude
15736912.208862
Surface area
1.4298102849364E+14
Volume
7.0713188911438E+20
Height
8566090.0085971