28904865 (number)

28904865 is an odd 8-digits composite number following 28904864 and preceding 28904866. In scientific notation, it is written as 2.8904865 × 10^7. The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors. There are 13560000 positive integers (up to 28904865) that are relatively prime to 28904865.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred four thousand eight hundred sixty-five

Notation

Scientific notation 2.8904865 × 10^7
Engineering notation 2.8904865 × 10^6

Prime Factorization of 28904865

Prime Factorization 3 × 11 × 5 × 31 × 5651

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 28904865
Product of the distinct prime numbers

The prime factorization of 28904865 is 3 × 11 × 5 × 31 × 5651. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 4, 21, 19, 48, 636, 7706, 8797, 10759, 11816, 413473, 549288, 6398242, 8630056, 86716177, 9603185, 433480057, 109044, 532709734, 7896850153

Basic calculations (n = 28904865)

Multiplication

n×y
n×2 57809730
n×3 86714595
n×4 115619460
n×5 144524325

Division

n÷y
n÷2 14452432.5
n÷3 9634955
n÷3 7226216.25
n÷5 5780973

Exponentiation

ny
n2 835491220668225
n3 2.41497609421E+22
n4 6.9804557981368E+29
n5 2.0176913248361E+37

Nth Root

y√n
2√n 5376.324487975
3√n 306.89535491322
4√n 73.323423869696
5√n 31.059480615375

Divisors of 28904865

1, 3, 5, 11, 15, 31, 33, 55, 93, 155, 165, 341, 465, 1023, 1705, 5115, 5651, 16953, 28255, 62161, 84765, 175181, 186483, 310805, 525543, 875905, 932415, 1926991, 2627715, 5780973, 9634955, 28904865

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28904864
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28904865 can be divided by 32 positive divisors. The sum of these divisors (counting 28904865) is 1, the average is 0.03125.

Base conversion 28904865

Base System Value
2 Binary 1101110010000110110100001
3 Ternary 2000101112000120
4 Quaternary 1232100312201
5 Quinary 24344423430
6 Senary 2511310453
8 Octal 156206641
10 Decimal 28904865
12 Duodecimal 981b429
16 Hexadecimal 1b90da1
20 Vigesimal 90d235
36 Base36 h7j4x

Cryptographic Hash Functions

md5 15045fb63454a00732a1366572c21003
sha1 171a7c88ad2dd0ad8a87291f80d0eea61ed5250b
sha256 bfd1193f6bb587d46d96ebe269860bd3683f7cce37316373ad786b758c055295
sha512 29d08f59230a779dbffd4f52b871547905835f1d58c8e292397ef53f3e0106a2c18166ae0a08f4bf43446ff319bea483217c8894686fc6d9f9896377fad67be0
ripemd-160 164168aac6f4eb06299e1db3a20218b049f98436

28904865 as geometric shapes

Circle

Radius = n
Diameter 57809730
Circumference 181614623.07401
Area 2.6247730809901E+15

Sphere

Radius = n
Volume 1.011582820822E+23
Surface area 1.049909232396E+16
Circumference 181614623.07401

Square

Length = n
Perimeter 115619460
Area 835491220668225
Diagonal 40877652.101563

Cube

Length = n
Surface area 5012947324009350
Volume 2.41497609421E+22
Space diagonal 50064694.765919

Equilateral Triangle

Length = n
Perimeter 86714595
Area 3.6177831086878E+14
Altitude 25032347.38296

Triangular Pyramid

Length = n
Surface area 3.6177831086878E+14
Volume 2.8460766210322E+21
Height 13625884.033854