20121940 is an even 8-digits composite number following 20121939
and preceding 20121941 . In scientific notation, it is written as 2.0121940 × 10^7.
The sum of its digits is 19. It has a total of 5 prime factors and 24 positive divisors.
There are 7771008 positive integers (up to 20121940) that are relatively prime to 20121940.
20121940 has 24 divisors, whose sum is 43714440
The reverse of 20121940 is 04912102
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred twenty-one thousand nine hundred forty
Scientific notation
2.0121940 × 10^7
Engineering notation
2.0121940 × 10^6
Prime Factorization
2 × 2 × 5 × 29 × 34693
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10060970
Product of the distinct prime numbers
The prime factorization of 20121940 is 2 × 2 × 5 × 29 × 34693.
Since it has a total of 5 prime factors.
2 , 8 , 53 , 91 , 64 , 234 , 187 , 3652 , 50163 , 94022 , 23042 , 739156 , 5246611 , 5851479 , 60971539 , 32035453 , 300548991 , 808068134 , 6926012292 , 7007608683
n×2
40243880
n×3
60365820
n×4
80487760
n×5
100609700
n÷2
10060970
n÷3
6707313.3333333
n÷3
5030485
n÷5
4024388
n2
404892469363600
n3
8.1472219749862E+21
n4
1.6393791174735E+29
n5
3.2987488239055E+36
2 √n
4485.7485440002
3 √n
271.99230442472
4 √n
66.975731007584
5 √n
28.889097187901
1 , 2 , 4 , 5 , 10 , 20 , 29 , 58 , 116 , 145 , 290 , 580 , 34693 , 69386 , 138772 , 173465 , 346930 , 693860 , 1006097 , 2012194 , 4024388 , 5030485 , 10060970 , 20121940
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121939
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121940 can be divided by 24 positive divisors.
The sum of these divisors (counting 20121940) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100110000100101010100
3
Ternary
1101212022010001
4
Quaternary
1030300211110
5
Quinary
20122400230
6
Senary
1555141044
8
Octal
114604524
10
Decimal
20121940
12
Duodecimal
68a4784
16
Hexadecimal
1330954
20
Vigesimal
65f4h0
36
Base36
bza6s
md5
dda4ff92f553412632a89a08544f74c7
sha1
83b4955cf7df05d5ad3e229f066fe598de1de534
sha256
6d70ad186fe1253f768025ae519e1aeae8d7f8660d0e8f8ecb5eaf5db97efe91
sha512
2fa81e4dc9e51c22d4bac1c29e99e525939558fe102217c41660f8f011f672404dcf2bd506ba31de5f65c98877b87303477506c7a45fab604830c4ec17bb8df4
ripemd-160
faeb205356e58817960a87f757992a18d6dbbbe8
Diameter
40243880
Circumference
126429877.75995
Area
1.2720072072465E+15
Volume
3.4127003605043E+22
Surface area
5.0880288289861E+15
Circumference
126429877.75995
Perimeter
80487760
Area
404892469363600
Diagonal
28456720.449258
Surface area
2429354816181600
Volume
8.1472219749862E+21
Space diagonal
34852222.426852
Perimeter
60365820
Area
1.7532358213495E+14
Altitude
17426111.213426
Surface area
1.7532358213495E+14
Volume
9.6015931772413E+20
Height
9485573.4830859