28706988 (number)

28706988 is an even 8-digits composite number following 28706987 and preceding 28706989. In scientific notation, it is written as 2.8706988 × 10^7. The sum of its digits is 48. It has a total of 4 prime factors and 12 positive divisors. There are 9568992 positive integers (up to 28706988) that are relatively prime to 28706988.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8706988 × 10^7
Engineering notation 2.8706988 × 10^6

Prime Factorization of 28706988

Prime Factorization 2 × 2 × 3 × 2392249

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 14353494
Product of the distinct prime numbers

The prime factorization of 28706988 is 2 × 2 × 3 × 2392249. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 9, 14, 28, 914, 758, 7880, 5232, 18864, 40833, 805464, 582483, 7899347, 7429626, 47061814, 96219238, 767626055, 523344859, 5287210217, 5902273414

Basic calculations (n = 28706988)

Multiplication

n×y
n×2 57413976
n×3 86120964
n×4 114827952
n×5 143534940

Division

n÷y
n÷2 14353494
n÷3 9568996
n÷3 7176747
n÷5 5741397.6

Exponentiation

ny
n2 824091160032144
n3 2.3657175041949E+22
n4 6.7912624004312E+29
n5 1.9495668823403E+37

Nth Root

y√n
2√n 5357.8902564349
3√n 306.19343572845
4√n 73.197611002238
5√n 31.016838271888

Divisors of 28706988

1, 2, 3, 4, 6, 12, 2392249, 4784498, 7176747, 9568996, 14353494, 28706988

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28706987
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28706988 can be divided by 12 positive divisors. The sum of these divisors (counting 28706988) is 1, the average is 0.083333333333333.

Base conversion 28706988

Base System Value
2 Binary 1101101100000100010101100
3 Ternary 2000000110120210
4 Quaternary 1231200202230
5 Quinary 24322110423
6 Senary 2503142420
8 Octal 155404254
10 Decimal 28706988
12 Duodecimal 9744a10
16 Hexadecimal 1b608ac
20 Vigesimal 8j8798
36 Base36 h3agc

Cryptographic Hash Functions

md5 67a525d44d4b4d12c8d3ad8b901ab0e3
sha1 33aa7c5d369c873c97ea2b6699cbb92e239ccde7
sha256 1288013335ed403da031b87fdafbe6cfd51a93eb1e626e59e7a4f41795598204
sha512 c0c427815e65bbe1f96a21e6e883f52d151cf644d5337a3be839d54b4aadbf8f9e8ca1d4a6901eb0e9599502fba104beda637e05fe412c695aa24f94f3a9aae0
ripemd-160 bb2fc05b5eddb8b16b95f145e4efa9dbcaecbade

28706988 as geometric shapes

Circle

Radius = n
Diameter 57413976
Circumference 180371325.21498
Area 2.5889587342453E+15

Sphere

Radius = n
Volume 9.9094943088632E+22
Surface area 1.0355834936981E+16
Circumference 180371325.21498

Square

Length = n
Perimeter 114827952
Area 824091160032144
Diagonal 40597811.764482

Cube

Length = n
Surface area 4944546960192864
Volume 2.3657175041949E+22
Space diagonal 49721961.74827

Equilateral Triangle

Length = n
Perimeter 86120964
Area 3.5684193981101E+14
Altitude 24860980.874135

Triangular Pyramid

Length = n
Surface area 3.5684193981101E+14
Volume 2.7880248159799E+21
Height 13532603.921494