20287745 (number)

20287745 is an odd 8-digits composite number following 20287744 and preceding 20287746. In scientific notation, it is written as 2.0287745 × 10^7. The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors. There are 16112880 positive integers (up to 20287745) that are relatively prime to 20287745.

Interesting facts

Basic properties

Name

Name twenty million two hundred eighty-seven thousand seven hundred forty-five

Notation

Scientific notation 2.0287745 × 10^7
Engineering notation 2.0287745 × 10^6

Prime Factorization of 20287745

Prime Factorization 5 × 139 × 29191

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20287745
Product of the distinct prime numbers

The prime factorization of 20287745 is 5 × 139 × 29191. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20287745)

Multiplication

n×y
n×2 40575490
n×3 60863235
n×4 81150980
n×5 101438725

Division

n÷y
n÷2 10143872.5
n÷3 6762581.6666667
n÷3 5071936.25
n÷5 4057549

Exponentiation

ny
n2 411592597185025
n3 8.3502856555775E+21
n4 1.6940846605751E+29
n5 3.436915760216E+36

Nth Root

y√n
2√n 4504.1919364077
3√n 272.73733496545
4√n 67.11327690113
5√n 28.936550332563

Divisors of 20287745

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 -20287744
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 20287745 can be divided by 8 positive divisors. The sum of these divisors (counting 20287745) is 1, the average is 0.125.

Base conversion 20287745

Base System Value
2 Binary 1001101011001000100000001
3 Ternary 1102011201112222
4 Quaternary 1031121010001
5 Quinary 20143201440
6 Senary 2002500425
8 Octal 115310401
10 Decimal 20287745
12 Duodecimal 6964715
16 Hexadecimal 1359101
20 Vigesimal 66fj75
36 Base36 c2u4h

Cryptographic Hash Functions

md5 afdde47f38e2834596db618bab1ca476
sha1 27efb60c540a593e35aa84a57da686b61dd5135e
sha256 efc16f9152daed121650058199c0a93b3713384fbbedc933776833c3a5edeb4e
sha512 bc0b67eb25c62cf206cbf289250d406cc343b14306e870eee251ffade5aec082edebbb96e0700224178242691e38ca204fde07844ac56e34334b9159e08ef67c
ripemd-160 4dc53e08a45bf699a49fb3928a26476b28f3f4d4

20287745 as geometric shapes

Circle

Radius = n
Diameter 40575490
Circumference 127471661.29981
Area 1.2930562795884E+15

Sphere

Radius = n
Volume 3.4977594761251E+22
Surface area 5.1722251183537E+15
Circumference 127471661.29981

Square

Length = n
Perimeter 81150980
Area 411592597185025
Diagonal 28691204.128967

Cube

Length = n
Surface area 2469555583110150
Volume 8.3502856555775E+21
Space diagonal 35139405.111001

Equilateral Triangle

Length = n
Perimeter 60863235
Area 1.7822482258592E+14
Altitude 17569702.555501

Triangular Pyramid

Length = n
Surface area 1.7822482258592E+14
Volume 9.8409060198393E+20
Height 9563734.7096556