20142745 is an odd 8-digits composite number following 20142744
and preceding 20142746 . In scientific notation, it is written as 2.0142745 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 13769280 positive integers (up to 20142745) that are relatively prime to 20142745.
20142745 has 8 divisors, whose sum is 20782656
The reverse of 20142745 is 54724102
Previous prime number is 421
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred forty-two thousand seven hundred forty-five
Scientific notation
2.0142745 × 10^7
Engineering notation
2.0142745 × 10^6
Prime Factorization
35 × 421 × 1367
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20142745
Product of the distinct prime numbers
The prime factorization of 20142745 is 35 × 421 × 1367.
Since it has a total of 3 prime factors.
10 , 2 , 31 , 70 , 753 , 294 , 5233 , 6833 , 18489 , 10815 , 752955 , 788247 , 4686038 , 4507188 , 12045681 , 12359308 , 988701413 , 791786536 , 6017145826 , 8783936922
n×2
40285490
n×3
60428235
n×4
80570980
n×5
100713725
n÷2
10071372.5
n÷3
6714248.3333333
n÷3
5035686.25
n÷5
4028549
n2
405730176135025
n3
8.1725194766929E+21
n4
1.6461697582656E+29
n5
3.3158377667455E+36
2 √n
4488.0669558285
3 √n
272.08601392316
4 √n
66.99303662194
5 √n
28.89506867221
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
-20142744
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 20142745 can be divided by 8 positive divisors.
The sum of these divisors (counting 20142745) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110101101010011001
3
Ternary
1101220100122121
4
Quaternary
1030311222121
5
Quinary
20124031440
6
Senary
1555421241
8
Octal
114655231
10
Decimal
20142745
12
Duodecimal
68b4821
16
Hexadecimal
1335a99
20
Vigesimal
65hgh5
36
Base36
bzq8p
md5
0435ec53f47f09d8ad81792a4d7231f8
sha1
541909c6cd15ab52ad5969883d836d60d9a91506
sha256
e54dad22c77fe742df5c3822bd6781a390e220e78f8945057c8c33b15e2654ec
sha512
52324d77e12b5c6c39cd6c3712c097ab12274a0f9821daee74ee28c1c0334eb3f04e0cdc0f00e5248c8fc3eb6233c34b5e923be4b6267ca00dc931dcc43741ee
ripemd-160
69124a1cd2871cc648b054c14b91158e7fdfba10
Diameter
40285490
Circumference
126560599.43027
Area
1.2746389406855E+15
Volume
3.4232969532397E+22
Surface area
5.0985557627419E+15
Circumference
126560599.43027
Perimeter
80570980
Area
405730176135025
Diagonal
28486143.162423
Surface area
2434381056810150
Volume
8.1725194766929E+21
Space diagonal
34888257.743904
Perimeter
60428235
Area
1.7568631980743E+14
Altitude
17444128.871952
Surface area
1.7568631980743E+14
Volume
9.6314065689145E+20
Height
9495381.0541409