28687908 (number)

28687908 is an even 8-digits composite number following 28687907 and preceding 28687909. In scientific notation, it is written as 2.8687908 × 10^7. The sum of its digits is 48. It has a total of 5 prime factors and 24 positive divisors. There are 9000064 positive integers (up to 28687908) that are relatively prime to 28687908.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8687908 × 10^7
Engineering notation 2.8687908 × 10^6

Prime Factorization of 28687908

Prime Factorization 2 × 2 × 3 × 17 × 140627

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 14343954
Product of the distinct prime numbers

The prime factorization of 28687908 is 2 × 2 × 3 × 17 × 140627. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 3, 7, 39, 70, 395, 3420, 5717, 92173, 93392, 756805, 21255, 2892757, 5592631, 40742118, 15344107, 376869222, 975220359, 1262933176, 5410241207

Basic calculations (n = 28687908)

Multiplication

n×y
n×2 57375816
n×3 86063724
n×4 114751632
n×5 143439540

Division

n÷y
n÷2 14343954
n÷3 9562636
n÷3 7171977
n÷5 5737581.6

Exponentiation

ny
n2 822996065416464
n3 2.361003540903E+22
n4 6.7732252369098E+29
n5 1.9430966245975E+37

Nth Root

y√n
2√n 5356.10940889
3√n 306.12558389207
4√n 73.185445335053
5√n 31.012714128509

Divisors of 28687908

1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 140627, 281254, 421881, 562508, 843762, 1687524, 2390659, 4781318, 7171977, 9562636, 14343954, 28687908

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28687907
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28687908 can be divided by 24 positive divisors. The sum of these divisors (counting 28687908) is 1, the average is 0.041666666666667.

Base conversion 28687908

Base System Value
2 Binary 1101101011011111000100100
3 Ternary 1222222111102010
4 Quaternary 1231123320210
5 Quinary 24321003113
6 Senary 2502514220
8 Octal 155337044
10 Decimal 28687908
12 Duodecimal 9735970
16 Hexadecimal 1b5be24
20 Vigesimal 8j5jf8
36 Base36 h2vqc

Cryptographic Hash Functions

md5 b6d651a2a2d053a897539f15f55f041f
sha1 8dde8aee73d2a177259ddfde89a0abcdc105a86b
sha256 0667cc470386e0d697b615e159ae3e431b09033513beb61a0050af8ae3a769e6
sha512 edff7d6f5d86a41c8190d75a2501a3e58354fe6c08b9b0f125481c4ce47e0e4d0449cfea64226f2868a8aa3dbe669610d9bf798895b8abd943c70df5a60d0532
ripemd-160 c948c3c8c0eba4679bccbb6abc22edc12afb3dcf

28687908 as geometric shapes

Circle

Radius = n
Diameter 57375816
Circumference 180251442.03932
Area 2.5855183930457E+15

Sphere

Radius = n
Volume 9.8897485056003E+22
Surface area 1.0342073572183E+16
Circumference 180251442.03932

Square

Length = n
Perimeter 114751632
Area 822996065416464
Diagonal 40570828.569712

Cube

Length = n
Surface area 4937976392498784
Volume 2.361003540903E+22
Space diagonal 49688914.218862

Equilateral Triangle

Length = n
Perimeter 86063724
Area 3.5636774993265E+14
Altitude 24844457.109431

Triangular Pyramid

Length = n
Surface area 3.5636774993265E+14
Volume 2.7824693569632E+21
Height 13523609.523237