28665640 (number)

28665640 is an even 8-digits composite number following 28665639 and preceding 28665641. In scientific notation, it is written as 2.8665640 × 10^7. The sum of its digits is 37. It has a total of 6 prime factors and 32 positive divisors. There are 11308032 positive integers (up to 28665640) that are relatively prime to 28665640.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred sixty-five thousand six hundred forty

Notation

Scientific notation 2.8665640 × 10^7
Engineering notation 2.8665640 × 10^6

Prime Factorization of 28665640

Prime Factorization 2 × 2 × 2 × 5 × 73 × 9817

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 7166410
Product of the distinct prime numbers

The prime factorization of 28665640 is 2 × 2 × 2 × 5 × 73 × 9817. Since it has a total of 6 prime factors.

Most popular turbo-numbers

7, 2, 28, 58, 958, 341, 7099, 2985, 45750, 64056, 994896, 812743, 1368166, 675724, 65901970, 30909619, 985936825, 397076400, 170647444, 8124883618

Basic calculations (n = 28665640)

Multiplication

n×y
n×2 57331280
n×3 85996920
n×4 114662560
n×5 143328200

Division

n÷y
n÷2 14332820
n÷3 9555213.3333333
n÷3 7166410
n÷5 5733128

Exponentiation

ny
n2 821718916609600
n3 2.3555098644721E+22
n4 6.7522197791405E+29
n5 1.9355670138972E+37

Nth Root

y√n
2√n 5354.0302576657
3√n 306.04635691099
4√n 73.17123927928
5√n 31.007898122844

Divisors of 28665640

1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 9817, 19634, 39268, 49085, 78536, 98170, 196340, 392680, 716641, 1433282, 2866564, 3583205, 5733128, 7166410, 14332820, 28665640

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28665639
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28665640 can be divided by 32 positive divisors. The sum of these divisors (counting 28665640) is 1, the average is 0.03125.

Base conversion 28665640

Base System Value
2 Binary 1101101010110011100101000
3 Ternary 1222221100212101
4 Quaternary 1231112130220
5 Quinary 24314300030
6 Senary 2502223144
8 Octal 155263450
10 Decimal 28665640
12 Duodecimal 9724ab4
16 Hexadecimal 1b56728
20 Vigesimal 8j3420
36 Base36 h2ejs

Cryptographic Hash Functions

md5 e3f9beba56b8255c39e891d42d1feadd
sha1 06197a983ca567e70ba09359eaf1b23775b58540
sha256 19450c90cf47044ea17b6baafed7fdd43733636c354ec9adf800c732688f89cb
sha512 77cb368bc865460a218fd21afde4dd9ff94ad8871c02ed138739cdb289cc5d8ea0eb76784b8a9d782c89ad4c1dee5001ca0f261786f5dc1b8db482247b152942
ripemd-160 503cd5f70ad496b9addac1dae2e6e2e0169d592a

28665640 as geometric shapes

Circle

Radius = n
Diameter 57331280
Circumference 180111528.0689
Area 2.5815061117365E+15

Sphere

Radius = n
Volume 9.8667366475784E+22
Surface area 1.0326024446946E+16
Circumference 180111528.0689

Square

Length = n
Perimeter 114662560
Area 821718916609600
Diagonal 40539336.862105

Cube

Length = n
Surface area 4930313499657600
Volume 2.3555098644721E+22
Space diagonal 49650344.911479

Equilateral Triangle

Length = n
Perimeter 85996920
Area 3.5581472827707E+14
Altitude 24825172.455739

Triangular Pyramid

Length = n
Surface area 3.5581472827707E+14
Volume 2.7759949972E+21
Height 13513112.287368