28393989 (number)

28393989 is an odd 8-digits composite number following 28393988 and preceding 28393990. In scientific notation, it is written as 2.8393989 × 10^7. The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors. There are 17409600 positive integers (up to 28393989) that are relatively prime to 28393989.

Interesting facts

Basic properties

Name

Name twenty-eight million three hundred ninety-three thousand nine hundred eighty-nine

Notation

Scientific notation 2.8393989 × 10^7
Engineering notation 2.8393989 × 10^6

Prime Factorization of 28393989

Prime Factorization 3 × 13 × 311 × 2341

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28393989
Product of the distinct prime numbers

The prime factorization of 28393989 is 3 × 13 × 311 × 2341. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 1, 42, 1, 826, 865, 2908, 7615, 46566, 74712, 743079, 574888, 1777254, 6778004, 1887316, 39026366, 532693501, 837119958, 5090403640, 6115181344

Basic calculations (n = 28393989)

Multiplication

n×y
n×2 56787978
n×3 85181967
n×4 113575956
n×5 141969945

Division

n÷y
n÷2 14196994.5
n÷3 9464663
n÷3 7098497.25
n÷5 5678797.8

Exponentiation

ny
n2 806218611332121
n3 2.289176238176E+22
n4 6.4998844925829E+29
n5 1.8455764878367E+37

Nth Root

y√n
2√n 5328.6010359193
3√n 305.07653369175
4√n 72.997267318163
5√n 30.948904575994

Divisors of 28393989

1, 3, 13, 39, 311, 933, 2341, 4043, 7023, 12129, 30433, 91299, 728051, 2184153, 9464663, 28393989

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28393988
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28393989 can be divided by 16 positive divisors. The sum of these divisors (counting 28393989) is 1, the average is 0.0625.

Base conversion 28393989

Base System Value
2 Binary 1101100010100001000000101
3 Ternary 1222102120020020
4 Quaternary 1230110020011
5 Quinary 24232101424
6 Senary 2452325353
8 Octal 154241005
10 Decimal 28393989
12 Duodecimal 9613859
16 Hexadecimal 1b14205
20 Vigesimal 8h94j9
36 Base36 gwkxx

Cryptographic Hash Functions

md5 6b463d6abb9556bdafe38961ea5c5fed
sha1 370956f2032f11b4eebcf356ae102fb907d8f141
sha256 0826a2c56244e9910063ff71d63f9a49897cf722b8a4c6791a5748d832bd0fee
sha512 912dfa59a6f6e18badf9658787ae975fb2ee945baa08fc9757425fccc1e521c0817a839245a8887ad4344252edf92eee6ee8fbca0d5991d15619ceda3357f653
ripemd-160 61375dfae4d6faa765956008105cf517e1b05c8d

28393989 as geometric shapes

Circle

Radius = n
Diameter 56787978
Circumference 178404694.49702
Area 2.5328104665484E+15

Sphere

Radius = n
Volume 9.5888790035012E+22
Surface area 1.0131241866193E+16
Circumference 178404694.49702

Square

Length = n
Perimeter 113575956
Area 806218611332121
Diagonal 40155164.333672

Cube

Length = n
Surface area 4837311667992726
Volume 2.289176238176E+22
Space diagonal 49179831.577552

Equilateral Triangle

Length = n
Perimeter 85181967
Area 3.4910289920871E+14
Altitude 24589915.788776

Triangular Pyramid

Length = n
Surface area 3.4910289920871E+14
Volume 2.6978200689089E+21
Height 13385054.777891