12181421 is an odd 8-digits composite number following 12181420
and preceding 12181422 . In scientific notation, it is written as 1.2181421 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 9639168 positive integers (up to 12181421) that are relatively prime to 12181421.
12181421 has 8 divisors, whose sum is 13947840
The reverse of 12181421 is 12418121
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twelve million one hundred eighty-one thousand four hundred twenty-one
Scientific notation
1.2181421 × 10^7
Engineering notation
1.2181421 × 10^6
Prime Factorization
667 × 7 × 2609
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12181421
Product of the distinct prime numbers
The prime factorization of 12181421 is 667 × 7 × 2609.
Since it has a total of 3 prime factors.
10 , 2 , 20 , 22 , 789 , 229 , 6148 , 7038 , 97729 , 79525 , 850117 , 523215 , 9328626 , 3875372 , 92843548 , 34477820 , 808511372 , 264778309 , 7298167080 , 3920814685
n×2
24362842
n×3
36544263
n×4
48725684
n×5
60907105
n÷2
6090710.5
n÷3
4060473.6666667
n÷3
3045355.25
n÷5
2436284.2
n2
148387017579241
n3
1.8075647320671E+21
n4
2.2018706986062E+28
n5
2.6821913967286E+35
2 √n
3490.1892498832
3 √n
230.09083368763
4 √n
59.077823672535
5 √n
26.13001088286
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
-12181420
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 12181421 can be divided by 8 positive divisors.
The sum of these divisors (counting 12181421) is 1, the average is 0.125.
Base
System
Value
2
Binary
101110011101111110101101
3
Ternary
211220212202202
4
Quaternary
232131332231
5
Quinary
11104301141
6
Senary
1113031245
8
Octal
56357655
10
Decimal
12181421
12
Duodecimal
40b5525
16
Hexadecimal
b9dfad
20
Vigesimal
3g2db1
36
Base36
7938t
md5
d8a87420d9798dc8fa9bd189fb1e393f
sha1
5432aa1134a144914e997685aec3eb456f6ceef8
sha256
5fef3485469064df494b6fea58f282d2a62ac3d69310592f3dfb9c4abc2c341f
sha512
c93b603b215ca4836d35e66925e8272105323f17f644f63b1b0018273c8103ca92f0b8d4dea0960dc0892743e36136d1434712378cdc0d5bccd9c67e2878869c
ripemd-160
bb183130344a45bf8c6be4d3fbde5b90901a1db0
Diameter
24362842
Circumference
76538125.447769
Area
4.6617156431504E+14
Volume
7.5715094442002E+21
Surface area
1.8646862572602E+15
Circumference
76538125.447769
Perimeter
48725684
Area
148387017579241
Diagonal
17227130.787176
Surface area
890322105475446
Volume
1.8075647320671E+21
Space diagonal
21098840.080386
Perimeter
36544263
Area
64253463407715
Altitude
10549420.040193
Surface area
64253463407715
Volume
2.1302354657972E+20
Height
5742376.9290588