28987515 (number)

28987515 is an odd 8-digits composite number following 28987514 and preceding 28987516. In scientific notation, it is written as 2.8987515 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 15396480 positive integers (up to 28987515) that are relatively prime to 28987515.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred eighty-seven thousand five hundred fifteen

Notation

Scientific notation 2.8987515 × 10^7
Engineering notation 2.8987515 × 10^6

Prime Factorization of 28987515

Prime Factorization 45 × 271 × 2377

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28987515
Product of the distinct prime numbers

The prime factorization of 28987515 is 45 × 271 × 2377. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 7, 49, 90, 217, 376, 1464, 3822, 41047, 82779, 258831, 201454, 2989048, 1468226, 6351906, 64516031, 103067915, 765422761, 7045703343, 4312083868

Basic calculations (n = 28987515)

Multiplication

n×y
n×2 57975030
n×3 86962545
n×4 115950060
n×5 144937575

Division

n÷y
n÷2 14493757.5
n÷3 9662505
n÷3 7246878.75
n÷5 5797503

Exponentiation

ny
n2 840276025875225
n3 2.4357513904198E+22
n4 7.0606379966066E+29
n5 2.046703498362E+37

Nth Root

y√n
2√n 5384.0054791948
3√n 307.18758672782
4√n 73.37578264792
5√n 31.077222507703

Divisors of 28987515

1, 45, 271, 2377, 12195, 106965, 644167, 28987515

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 -28987514
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 28987515 can be divided by 8 positive divisors. The sum of these divisors (counting 28987515) is 1, the average is 0.125.

Base conversion 28987515

Base System Value
2 Binary 1101110100101000001111011
3 Ternary 2000112201101200
4 Quaternary 1232211001323
5 Quinary 24410100030
6 Senary 2513145243
8 Octal 156450173
10 Decimal 28987515
12 Duodecimal 985b223
16 Hexadecimal 1ba507b
20 Vigesimal 9138ff
36 Base36 h9awr

Cryptographic Hash Functions

md5 66d85f45ef5e4f9e5cb8388695931208
sha1 1dee80e4e21bd3c793fa282dfa5ebb11b1eac5ac
sha256 d9c039c9b69c25c1fc9e56bf006c1d14eedd53d9b42b23a8fdc3cc157f89359a
sha512 06e68e8ce601096319a7fd81abc72764bfd5834ad2b5bb2e06e98ee41d4b7a82ca4c8242edf781e95c4f51055cf57f09d447892f1c0e290a45f938da6db79adc
ripemd-160 8367718b5cbc853dadb08f330f56e8730d5514fe

28987515 as geometric shapes

Circle

Radius = n
Diameter 57975030
Circumference 182133928.33965
Area 2.6398049898772E+15

Sphere

Radius = n
Volume 1.0202851565485E+23
Surface area 1.0559219959509E+16
Circumference 182133928.33965

Square

Length = n
Perimeter 115950060
Area 840276025875225
Diagonal 40994536.852494

Cube

Length = n
Surface area 5041656155251350
Volume 2.4357513904198E+22
Space diagonal 50207848.765165

Equilateral Triangle

Length = n
Perimeter 86962545
Area 3.6385019229949E+14
Altitude 25103924.382582

Triangular Pyramid

Length = n
Surface area 3.6385019229949E+14
Volume 2.8705605424174E+21
Height 13664845.617498