28859987 (number)

28859987 is an odd 8-digits composite number following 28859986 and preceding 28859988. In scientific notation, it is written as 2.8859987 × 10^7. The sum of its digits is 56. It has a total of 2 prime factors and 4 positive divisors. There are 26639976 positive integers (up to 28859987) that are relatively prime to 28859987.

Interesting facts

Basic properties

Name

Name twenty-eight million eight hundred fifty-nine thousand nine hundred eighty-seven

Notation

Scientific notation 2.8859987 × 10^7
Engineering notation 2.8859987 × 10^6

Prime Factorization of 28859987

Prime Factorization 13 × 2219999

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28859987
Product of the distinct prime numbers

The prime factorization of 28859987 is 13 × 2219999. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28859987)

Multiplication

n×y
n×2 57719974
n×3 86579961
n×4 115439948
n×5 144299935

Division

n÷y
n÷2 14429993.5
n÷3 9619995.6666667
n÷3 7214996.75
n÷5 5771997.4

Exponentiation

ny
n2 832898849640169
n3 2.403744997293E+22
n4 6.9372049373192E+29
n5 2.0020764430737E+37

Nth Root

y√n
2√n 5372.1491974814
3√n 306.73644298092
4√n 73.294946602623
5√n 31.04982996422

Divisors of 28859987

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28859986
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28859987 can be divided by 4 positive divisors. The sum of these divisors (counting 28859987) is 1, the average is 0.25.

Base conversion 28859987

Base System Value
2 Binary 1101110000101111001010011
3 Ternary 2000022020110102
4 Quaternary 1232011321103
5 Quinary 24342004422
6 Senary 2510323015
8 Octal 156057123
10 Decimal 28859987
12 Duodecimal 97b946b
16 Hexadecimal 1b85e53
20 Vigesimal 9079j7
36 Base36 h6kib

Cryptographic Hash Functions

md5 d19b557785e5defeaf6935bbfae833d3
sha1 d91a68a825fc00bf36f9a87d738b666e796fd8fb
sha256 ef7764ea868a7b1722cb7d8e384dcf6ad64dcaf17539027d852afdb33b395632
sha512 3b01bd993ca6ad4dad17d1d8f7a88cf70853d654f94590a83fc944e332d27094a67387a8ada6e459abfd6371b85108287f5a3346529948bb76f39c3b9002cac9
ripemd-160 7f77cd21fe91ffc88dff5d92565a3bb625d347e1

28859987 as geometric shapes

Circle

Radius = n
Diameter 57719974
Circumference 181332646.28379
Area 2.6166289072129E+15

Sphere

Radius = n
Volume 1.0068783499465E+23
Surface area 1.0466515628852E+16
Circumference 181332646.28379

Square

Length = n
Perimeter 115439948
Area 832898849640169
Diagonal 40814185.025311

Cube

Length = n
Surface area 4997393097841014
Volume 2.403744997293E+22
Space diagonal 49986963.789777

Equilateral Triangle

Length = n
Perimeter 86579961
Area 3.6065578128561E+14
Altitude 24993481.894889

Triangular Pyramid

Length = n
Surface area 3.6065578128561E+14
Volume 2.8328406463819E+21
Height 13604728.34177