28821639 (number)

28821639 is an odd 8-digits composite number following 28821638 and preceding 28821640. In scientific notation, it is written as 2.8821639 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 14972160 positive integers (up to 28821639) that are relatively prime to 28821639.

Interesting facts

Basic properties

Name

Name twenty-eight million eight hundred twenty-one thousand six hundred thirty-nine

Notation

Scientific notation 2.8821639 × 10^7
Engineering notation 2.8821639 × 10^6

Prime Factorization of 28821639

Prime Factorization 7 × 3 × 11 × 124769

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28821639
Product of the distinct prime numbers

The prime factorization of 28821639 is 7 × 3 × 11 × 124769. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 4, 6, 64, 980, 996, 7149, 283, 38250, 2683, 192828, 76329, 8328123, 4242585, 79657870, 63850208, 330465191, 866287392, 2815871831, 6957436087

Basic calculations (n = 28821639)

Multiplication

n×y
n×2 57643278
n×3 86464917
n×4 115286556
n×5 144108195

Division

n÷y
n÷2 14410819.5
n÷3 9607213
n÷3 7205409.75
n÷5 5764327.8

Exponentiation

ny
n2 830686874646321
n3 2.3941757223095E+22
n4 6.9004068370967E+29
n5 1.9888103481193E+37

Nth Root

y√n
2√n 5368.5788622316
3√n 306.60052304313
4√n 73.270586610396
5√n 31.041574019782

Divisors of 28821639

1, 3, 7, 11, 21, 33, 77, 231, 124769, 374307, 873383, 1372459, 2620149, 4117377, 9607213, 28821639

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 -28821638
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 28821639 can be divided by 16 positive divisors. The sum of these divisors (counting 28821639) is 1, the average is 0.0625.

Base conversion 28821639

Base System Value
2 Binary 1101101111100100010000111
3 Ternary 2000020021212010
4 Quaternary 1231330202013
5 Quinary 24334243024
6 Senary 2505425303
8 Octal 155744207
10 Decimal 28821639
12 Duodecimal 979b233
16 Hexadecimal 1b7c887
20 Vigesimal 902e1j
36 Base36 h5qx3

Cryptographic Hash Functions

md5 8fe964c4b665c43d40f6ad53a44e027b
sha1 750859fbf44591c6368376c229f1574f7d240658
sha256 8f018e7d82de86794b841dfc2c8ac5aec488e290e3faf6a704b4b99761b5e3be
sha512 9f5336b3942b0efe94a3df9bfe2c351d6ae0768e25ffd48c0dacf876e96df8a29fd613fffef57ace52676b8c5ceb8740543d7dbc76c95f83fccd8e8d2436b0a5
ripemd-160 84382ef6b4c8b9a71774c00d34e9b1e52add49f9

28821639 as geometric shapes

Circle

Radius = n
Diameter 57643278
Circumference 181091698.69363
Area 2.6096797828223E+15

Sphere

Radius = n
Volume 1.0028699814147E+23
Surface area 1.0438719131289E+16
Circumference 181091698.69363

Square

Length = n
Perimeter 115286556
Area 830686874646321
Diagonal 40759952.763621

Cube

Length = n
Surface area 4984121247877926
Volume 2.3941757223095E+22
Space diagonal 49920543.105409

Equilateral Triangle

Length = n
Perimeter 86464917
Area 3.5969796801701E+14
Altitude 24960271.552704

Triangular Pyramid

Length = n
Surface area 3.5969796801701E+14
Volume 2.821563147662E+21
Height 13586650.921207