20121384 is an even 8-digits composite number following 20121383
and preceding 20121385 . In scientific notation, it is written as 2.0121384 × 10^7.
The sum of its digits is 21. It has a total of 5 prime factors and 16 positive divisors.
There are 6707120 positive integers (up to 20121384) that are relatively prime to 20121384.
20121384 has 16 divisors, whose sum is 50303520
The reverse of 20121384 is 48312102
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred twenty-one thousand three hundred eighty-four
Scientific notation
2.0121384 × 10^7
Engineering notation
2.0121384 × 10^6
Prime Factorization
2 × 2 × 2 × 3 × 838391
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5030346
Product of the distinct prime numbers
The prime factorization of 20121384 is 2 × 2 × 2 × 3 × 838391.
Since it has a total of 5 prime factors.
10 , 7 , 64 , 46 , 43 , 86 , 171 , 6232 , 44044 , 70429 , 994207 , 552675 , 8291686 , 4470104 , 98493028 , 3429197 , 616489409 , 154754292 , 8188323825 , 8674876032
n×2
40242768
n×3
60364152
n×4
80485536
n×5
100606920
n÷2
10060692
n÷3
6707128
n÷3
5030346
n÷5
4024276.8
n2
404870094075456
n3
8.1465466330084E+21
n4
1.6391979307667E+29
n5
3.2982931016962E+36
2 √n
4485.6865695231
3 √n
271.98979921375
4 √n
66.9752683423
5 √n
28.888937536142
1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 , 838391 , 1676782 , 2515173 , 3353564 , 5030346 , 6707128 , 10060692 , 20121384
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
-20121383
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 20121384 can be divided by 16 positive divisors.
The sum of these divisors (counting 20121384) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000011100101000
3
Ternary
1101212021100110
4
Quaternary
1030300130220
5
Quinary
20122341014
6
Senary
1555134320
8
Octal
114603450
10
Decimal
20121384
12
Duodecimal
68a43a0
16
Hexadecimal
1330728
20
Vigesimal
65f394
36
Base36
bz9rc
md5
872f42f98aa4e3907d1b89d6efd0ed9f
sha1
af75c6f449218a64f008e1d2a088271094b12503
sha256
187da72452d97660d0e7b7eae3fbb0b8caa89c496e1675d6b2cdd413dbabb6fe
sha512
f89ca5ee0c5a4b9e388a815b644ad15b279bd8c4bb1940958fcb7b3a6f6b4652b7d8cba771e84c128959944f143ebeddbf0c3dd539b42ef815583e9e674a69a4
ripemd-160
05e03bb892477e06fb5d90090d422b449fee3f0c
Diameter
40242768
Circumference
126426384.30892
Area
1.2719369132057E+15
Volume
3.4124174739181E+22
Surface area
5.0877476528226E+15
Circumference
126426384.30892
Perimeter
80485536
Area
404870094075456
Diagonal
28455934.146517
Surface area
2429220564452736
Volume
8.1465466330084E+21
Space diagonal
34851259.406603
Perimeter
60364152
Area
1.7531389335097E+14
Altitude
17425629.703302
Surface area
1.7531389335097E+14
Volume
9.6007972790878E+20
Height
9485311.3821723