28489905 (number)

28489905 is an odd 8-digits composite number following 28489904 and preceding 28489906. In scientific notation, it is written as 2.8489905 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 15148320 positive integers (up to 28489905) that are relatively prime to 28489905.

Interesting facts

Basic properties

Name

Name twenty-eight million four hundred eighty-nine thousand nine hundred five

Notation

Scientific notation 2.8489905 × 10^7
Engineering notation 2.8489905 × 10^6

Prime Factorization of 28489905

Prime Factorization 9 × 5 × 419 × 1511

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28489905
Product of the distinct prime numbers

The prime factorization of 28489905 is 9 × 5 × 419 × 1511. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 1, 18, 31, 318, 292, 7698, 1583, 33103, 67025, 766964, 914173, 2237880, 5044743, 38289537, 49615386, 613585823, 99567671, 8415739651, 2416516396

Basic calculations (n = 28489905)

Multiplication

n×y
n×2 56979810
n×3 85469715
n×4 113959620
n×5 142449525

Division

n÷y
n÷2 14244952.5
n÷3 9496635
n÷3 7122476.25
n÷5 5697981

Exponentiation

ny
n2 811674686909025
n3 2.3124534720943E+22
n4 6.5881579736886E+29
n5 1.8769599479538E+37

Nth Root

y√n
2√n 5337.593558899
3√n 305.41966774293
4√n 73.058836282129
5√n 30.969785700975

Divisors of 28489905

1, 5, 9, 45, 419, 1511, 2095, 3771, 7555, 13599, 18855, 67995, 633109, 3165545, 5697981, 28489905

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 -28489904
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 28489905 can be divided by 16 positive divisors. The sum of these divisors (counting 28489905) is 1, the average is 0.0625.

Base conversion 28489905

Base System Value
2 Binary 1101100101011100010110001
3 Ternary 1222121102210200
4 Quaternary 1230223202301
5 Quinary 24243134110
6 Senary 2454345413
8 Octal 154534261
10 Decimal 28489905
12 Duodecimal 965b269
16 Hexadecimal 1b2b8b1
20 Vigesimal 8i14f5
36 Base36 gymy9

Cryptographic Hash Functions

md5 a452c843ba034d5386ba9ae2034e7ae1
sha1 3046121acc06e326ed3e0f3d503ed461626e21cc
sha256 e2bf7da084cce31cc195f6ebbb7bbc98fcd19899a83eb66a3e501b1de61a14d7
sha512 3e462cee0acee5c3e43cc68cbae6ab843af8a185202a876d1d06993689d6f1f46bc78c1f0c3d451657358efc360534df0147416a488bd4e6af0fcc1cb111f372
ripemd-160 02e9060e220a9e470fb214976d9ed29e6efae4c0

28489905 as geometric shapes

Circle

Radius = n
Diameter 56979810
Circumference 179007352.49894
Area 2.5499512334982E+15

Sphere

Radius = n
Volume 9.6863824529328E+22
Surface area 1.0199804933993E+16
Circumference 179007352.49894

Square

Length = n
Perimeter 113959620
Area 811674686909025
Diagonal 40290810.041721

Cube

Length = n
Surface area 4870048121454150
Volume 2.3124534720943E+22
Space diagonal 49345962.962811

Equilateral Triangle

Length = n
Perimeter 85469715
Area 3.51465449236E+14
Altitude 24672981.481405

Triangular Pyramid

Length = n
Surface area 3.51465449236E+14
Volume 2.7252525521604E+21
Height 13430270.013907