20145749 (number)

20145749 is an odd 8-digits composite number following 20145748 and preceding 20145750. In scientific notation, it is written as 2.0145749 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 17954496 positive integers (up to 20145749) that are relatively prime to 20145749.

Interesting facts

Basic properties

Name

Name twenty million one hundred forty-five thousand seven hundred forty-nine

Notation

Scientific notation 2.0145749 × 10^7
Engineering notation 2.0145749 × 10^6

Prime Factorization of 20145749

Prime Factorization 13 × 29 × 53437

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20145749
Product of the distinct prime numbers

The prime factorization of 20145749 is 13 × 29 × 53437. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20145749)

Multiplication

n×y
n×2 40291498
n×3 60437247
n×4 80582996
n×5 100728745

Division

n÷y
n÷2 10072874.5
n÷3 6715249.6666667
n÷3 5036437.25
n÷5 4029149.8

Exponentiation

ny
n2 405851202771001
n3 8.1761764623727E+21
n4 1.6471519879067E+29
n5 3.3183110513219E+36

Nth Root

y√n
2√n 4488.4016085907
3√n 272.09953915284
4√n 66.99553424364
5√n 28.895930477379

Divisors of 20145749

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 -20145748
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 20145749 can be divided by 8 positive divisors. The sum of these divisors (counting 20145749) is 1, the average is 0.125.

Base conversion 20145749

Base System Value
2 Binary 1001100110110011001010101
3 Ternary 1101220111202212
4 Quaternary 1030312121111
5 Quinary 20124130444
6 Senary 1555443205
8 Octal 114663125
10 Decimal 20145749
12 Duodecimal 68b6505
16 Hexadecimal 1336655
20 Vigesimal 65i479
36 Base36 bzsk5

Cryptographic Hash Functions

md5 08624dc038ca5176abefbc2822c55580
sha1 68e59ca2de0bc7ff9c7b78847cf96460f7c64207
sha256 9cb58791c44f8743034dca680414588ab9980aad8fd0eb347a51c61d7d76f529
sha512 c68bd175ef02efbdad2c25e4acbb4685f922ead4570184a19f7270e4c05d1b30b8eb1e7aac9515ad209942efcf52cfcd6f5458f79d542ade99311e2d7b110096
ripemd-160 18cbbf6519c904d4e0e156c5148dcadb02a9820e

20145749 as geometric shapes

Circle

Radius = n
Diameter 40291498
Circumference 126579474.11893
Area 1.275019157076E+15

Sphere

Radius = n
Volume 3.4248287878192E+22
Surface area 5.1000766283038E+15
Circumference 126579474.11893

Square

Length = n
Perimeter 80582996
Area 405851202771001
Diagonal 28490391.459964

Cube

Length = n
Surface area 2435107216626006
Volume 8.1761764623727E+21
Space diagonal 34893460.82453

Equilateral Triangle

Length = n
Perimeter 60437247
Area 1.7573872587808E+14
Altitude 17446730.412265

Triangular Pyramid

Length = n
Surface area 1.7573872587808E+14
Volume 9.6357163678693E+20
Height 9496797.1533214