20145731 is an odd 8-digits composite number following 20145730
and preceding 20145732 . In scientific notation, it is written as 2.0145731 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 18903168 positive integers (up to 20145731) that are relatively prime to 20145731.
20145731 has 8 divisors, whose sum is 21395520
The reverse of 20145731 is 13754102
Previous prime number is 367
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred forty-five thousand seven hundred thirty-one
Scientific notation
2.0145731 × 10^7
Engineering notation
2.0145731 × 10^6
Prime Factorization
17 × 367 × 3229
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20145731
Product of the distinct prime numbers
The prime factorization of 20145731 is 17 × 367 × 3229.
Since it has a total of 3 prime factors.
5 , 6 , 50 , 82 , 1 , 779 , 1213 , 5584 , 6502 , 64220 , 19783 , 517653 , 7515066 , 1207394 , 30282501 , 18595535 , 744709930 , 707580226 , 8953812692 , 2465167407
n×2
40291462
n×3
60437193
n×4
80582924
n×5
100728655
n÷2
10072865.5
n÷3
6715243.6666667
n÷3
5036432.75
n÷5
4029146.2
n2
405850477524361
n3
8.1761545464273E+21
n4
1.6471461010675E+29
n5
3.3182962269805E+36
2 √n
4488.3996034221
3 √n
272.09945811352
4 √n
66.995519278696
5 √n
28.895925313739
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
-20145730
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 20145731 can be divided by 8 positive divisors.
The sum of these divisors (counting 20145731) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110110011001000011
3
Ternary
1101220111202012
4
Quaternary
1030312121003
5
Quinary
20124130411
6
Senary
1555443135
8
Octal
114663103
10
Decimal
20145731
12
Duodecimal
68b64ab
16
Hexadecimal
1336643
20
Vigesimal
65i46b
36
Base36
bzsjn
md5
ff36b79f770a231f5e7516b0bb9ed95d
sha1
eb38f9349c12614d7e0ae613c74858bf3fcd63eb
sha256
711f213297f4c1b1ff951efc7be9e2798c6e653023552b21a4896aab9be4e10b
sha512
53ec6b206987a925577f86e44fe788e0b7bbc20e8a7462884a8743314ba4ab8be83d00b651b6dc152586208aa77c29b47f309bbd3e48661ec89608c493656e1d
ripemd-160
0d88b99762c6ee5ccc058dde0f68d21b9355b5d6
Diameter
40291462
Circumference
126579361.02159
Area
1.2750168786464E+15
Volume
3.4248196076894E+22
Surface area
5.1000675145858E+15
Circumference
126579361.02159
Perimeter
80582924
Area
405850477524361
Diagonal
28490366.00412
Surface area
2435102865146166
Volume
8.1761545464273E+21
Space diagonal
34893429.647615
Perimeter
60437193
Area
1.7573841183707E+14
Altitude
17446714.823808
Surface area
1.7573841183707E+14
Volume
9.63569053968E+20
Height
9496788.66804