28691889 (number)

28691889 is an odd 8-digits composite number following 28691888 and preceding 28691890. In scientific notation, it is written as 2.8691889 × 10^7. The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors. There are 19115280 positive integers (up to 28691889) that are relatively prime to 28691889.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred ninety-one thousand eight hundred eighty-nine

Notation

Scientific notation 2.8691889 × 10^7
Engineering notation 2.8691889 × 10^6

Prime Factorization of 28691889

Prime Factorization 3 × 3821 × 2503

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28691889
Product of the distinct prime numbers

The prime factorization of 28691889 is 3 × 3821 × 2503. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28691889)

Multiplication

n×y
n×2 57383778
n×3 86075667
n×4 114767556
n×5 143459445

Division

n÷y
n÷2 14345944.5
n÷3 9563963
n÷3 7172972.25
n÷5 5738377.8

Exponentiation

ny
n2 823224494388321
n3 2.3619865815071E+22
n4 6.7769856816091E+29
n5 1.9444452093132E+37

Nth Root

y√n
2√n 5356.4810276897
3√n 306.13974351154
4√n 73.187984175613
5√n 31.013574803065

Divisors of 28691889

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28691888
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28691889 can be divided by 8 positive divisors. The sum of these divisors (counting 28691889) is 1, the average is 0.125.

Base conversion 28691889

Base System Value
2 Binary 1101101011100110110110001
3 Ternary 1222222200212120
4 Quaternary 1231130312301
5 Quinary 24321120024
6 Senary 2502544453
8 Octal 155346661
10 Decimal 28691889
12 Duodecimal 9738129
16 Hexadecimal 1b5cdb1
20 Vigesimal 8j69e9
36 Base36 h2ysx

Cryptographic Hash Functions

md5 2ea44b6b5e09eca47c4d796ceb137b36
sha1 4e7cf4babc82a7647e21c50c4e6407f7dafaf478
sha256 85092a58204279ad0be65a54a399fb9133abf8e47609bd743129c62cd457a59f
sha512 753b6dca63e043b2f87ba57d6a2f36f5105a640f98bf74213035a22b6af6c59a4de0a120b4996dc159b6be35b2d5bcbe09d71c3b8b795aaeab75836d8f5f1ee8
ripemd-160 ee178c47451cf75404401dc5ef8c4b81228123f1

28691889 as geometric shapes

Circle

Radius = n
Diameter 57383778
Circumference 180276455.40003
Area 2.5862360238255E+15

Sphere

Radius = n
Volume 9.8938662564538E+22
Surface area 1.0344944095302E+16
Circumference 180276455.40003

Square

Length = n
Perimeter 114767556
Area 823224494388321
Diagonal 40576458.553903

Cube

Length = n
Surface area 4939346966329926
Volume 2.3619865815071E+22
Space diagonal 49695809.513127

Equilateral Triangle

Length = n
Perimeter 86075667
Area 3.5646666257894E+14
Altitude 24847904.756563

Triangular Pyramid

Length = n
Surface area 3.5646666257894E+14
Volume 2.7836278814255E+21
Height 13525486.184634