28821645 (number)

28821645 is an odd 8-digits composite number following 28821644 and preceding 28821646. In scientific notation, it is written as 2.8821645 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 14702688 positive integers (up to 28821645) that are relatively prime to 28821645.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8821645 × 10^7
Engineering notation 2.8821645 × 10^6

Prime Factorization of 28821645

Prime Factorization 9 × 5 × 23 × 27847

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28821645
Product of the distinct prime numbers

The prime factorization of 28821645 is 9 × 5 × 23 × 27847. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 4, 98, 93, 971, 397, 7194, 6360, 17772, 73648, 516280, 946574, 1886182, 8544191, 53072999, 63289089, 670394891, 998600150, 42277864, 9442592171

Basic calculations (n = 28821645)

Multiplication

n×y
n×2 57643290
n×3 86464935
n×4 115286580
n×5 144108225

Division

n÷y
n÷2 14410822.5
n÷3 9607215
n÷3 7205411.25
n÷5 5764329

Exponentiation

ny
n2 830687220506025
n3 2.3941772175461E+22
n4 6.9004125831203E+29
n5 1.9888124182422E+37

Nth Root

y√n
2√n 5368.5794210387
3√n 306.60054431884
4√n 73.270590423707
5√n 31.041575312209

Divisors of 28821645

1, 5, 9, 23, 45, 115, 207, 1035, 27847, 139235, 250623, 640481, 1253115, 3202405, 5764329, 28821645

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 -28821644
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 28821645 can be divided by 16 positive divisors. The sum of these divisors (counting 28821645) is 1, the average is 0.0625.

Base conversion 28821645

Base System Value
2 Binary 1101101111100100010001101
3 Ternary 2000020021212100
4 Quaternary 1231330202031
5 Quinary 24334243040
6 Senary 2505425313
8 Octal 155744215
10 Decimal 28821645
12 Duodecimal 979b239
16 Hexadecimal 1b7c88d
20 Vigesimal 902e25
36 Base36 h5qx9

Cryptographic Hash Functions

md5 c337fc9a61164e06610f449a64954cb3
sha1 dfdabeaef01f14b3fa521e43982197ff6bf4113d
sha256 29fed8bea5ba30886501bad66a0d89e005b4c399ca2e95f23010477152cbe178
sha512 f99600f08b383d682b5d58d3b4c8eacc8f175715f9ce01ad94f60c8ddfb8d9e8127b540bb281f99f0ff0b19f2b5e83a0af096148c5ebdda165e046b68f6e266c
ripemd-160 1aaf1a8a392672a58131e6a2d3306bbd55f44060

28821645 as geometric shapes

Circle

Radius = n
Diameter 57643290
Circumference 181091736.39275
Area 2.6096808693727E+15

Sphere

Radius = n
Volume 1.002870607738E+23
Surface area 1.0438723477491E+16
Circumference 181091736.39275

Square

Length = n
Perimeter 115286580
Area 830687220506025
Diagonal 40759961.248903

Cube

Length = n
Surface area 4984123323036150
Volume 2.3941772175461E+22
Space diagonal 49920553.497713

Equilateral Triangle

Length = n
Perimeter 86464935
Area 3.5969811777865E+14
Altitude 24960276.748857

Triangular Pyramid

Length = n
Surface area 3.5969811777865E+14
Volume 2.8215649098154E+21
Height 13586653.749634