20121666 is an even 8-digits composite number following 20121665
and preceding 20121667 . In scientific notation, it is written as 2.0121666 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 6450000 positive integers (up to 20121666) that are relatively prime to 20121666.
20121666 has 16 divisors, whose sum is 40341888
The reverse of 20121666 is 66612102
Previous prime number is 7781
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred twenty-one thousand six hundred sixty-six
Scientific notation
2.0121666 × 10^7
Engineering notation
2.0121666 × 10^6
Prime Factorization
2 × 3 × 7781 × 431
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20121666
Product of the distinct prime numbers
The prime factorization of 20121666 is 2 × 3 × 7781 × 431.
Since it has a total of 4 prime factors.
1 , 1 , 1 , 17 , 880 , 98 , 6958 , 134 , 2703 , 44429 , 698883 , 529191 , 5737583 , 9618109 , 75753277 , 79319799 , 191682070 , 716766581 , 7330949657 , 2320165183
n×2
40243332
n×3
60364998
n×4
80486664
n×5
100608330
n÷2
10060833
n÷3
6707222
n÷3
5030416.5
n÷5
4024333.2
n2
404881442615556
n3
8.1468891579084E+21
n4
1.6392898257445E+29
n5
3.298524235083E+36
2 √n
4485.7180027282
3 √n
271.99106984811
4 √n
66.975503004667
5 √n
28.889018511037
1 , 2 , 3 , 6 , 431 , 862 , 1293 , 2586 , 7781 , 15562 , 23343 , 46686 , 3353611 , 6707222 , 10060833 , 20121666
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
-20121665
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 20121666 can be divided by 16 positive divisors.
The sum of these divisors (counting 20121666) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000100001000010
3
Ternary
1101212021201220
4
Quaternary
1030300201002
5
Quinary
20122343131
6
Senary
1555135510
8
Octal
114604102
10
Decimal
20121666
12
Duodecimal
68a4596
16
Hexadecimal
1330842
20
Vigesimal
65f436
36
Base36
bz9z6
md5
83eae8434d58044f419432a3189f0330
sha1
45b69ab48eab0d598ab8b7d8cdd680037325b82e
sha256
2d74547c3e1e3669df28d05643b787f00940bc6a47682db4c4513b291635c85b
sha512
06c10fa9db582b7108fe510213085b9ff0e0bfe88248e2836ac67842a0bafb88a90dd2517321ce2c14a36d89f73e27de5cc06a1a592b90f82b2b2b433aa336d6
ripemd-160
19589530101fd7ff307ccd10c4124df5969529f2
Diameter
40243332
Circumference
126428156.16718
Area
1.2719725656959E+15
Volume
3.4125609504127E+22
Surface area
5.0878902627835E+15
Circumference
126428156.16718
Perimeter
80486664
Area
404881442615556
Diagonal
28456332.954742
Surface area
2429288655693336
Volume
8.1468891579084E+21
Space diagonal
34851747.844931
Perimeter
60364998
Area
1.7531880741298E+14
Altitude
17425873.922466
Surface area
1.7531880741298E+14
Volume
9.6012009485536E+20
Height
9485444.3182472