28156728 (number)

28156728 is an even 8-digits composite number following 28156727 and preceding 28156729. In scientific notation, it is written as 2.8156728 × 10^7. The sum of its digits is 39. It has a total of 6 prime factors and 32 positive divisors. There are 9367008 positive integers (up to 28156728) that are relatively prime to 28156728.

Interesting facts

Basic properties

Name

Name twenty-eight million one hundred fifty-six thousand seven hundred twenty-eight

Notation

Scientific notation 2.8156728 × 10^7
Engineering notation 2.8156728 × 10^6

Prime Factorization of 28156728

Prime Factorization 2 × 2 × 2 × 3 × 743 × 1579

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 7039182
Product of the distinct prime numbers

The prime factorization of 28156728 is 2 × 2 × 2 × 3 × 743 × 1579. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 6, 34, 95, 182, 139, 2398, 5501, 554, 33701, 218706, 756181, 3222507, 2096165, 51356595, 56781406, 101529700, 691500949, 1198350821, 858012905

Basic calculations (n = 28156728)

Multiplication

n×y
n×2 56313456
n×3 84470184
n×4 112626912
n×5 140783640

Division

n÷y
n÷2 14078364
n÷3 9385576
n÷3 7039182
n÷5 5631345.6

Exponentiation

ny
n2 792801331665984
n3 2.2322691453757E+22
n4 6.2853395149136E+29
n5 1.7697459510907E+37

Nth Root

y√n
2√n 5306.2913602628
3√n 304.22441301392
4√n 72.844295317223
5√n 30.897008838165

Divisors of 28156728

1, 2, 3, 4, 6, 8, 12, 24, 743, 1486, 1579, 2229, 2972, 3158, 4458, 4737, 5944, 6316, 8916, 9474, 12632, 17832, 18948, 37896, 1173197, 2346394, 3519591, 4692788, 7039182, 9385576, 14078364, 28156728

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 -28156727
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 28156728 can be divided by 32 positive divisors. The sum of these divisors (counting 28156728) is 1, the average is 0.03125.

Base conversion 28156728

Base System Value
2 Binary 1101011011010001100111000
3 Ternary 1221222111202210
4 Quaternary 1223122030320
5 Quinary 24202003403
6 Senary 2443255120
8 Octal 153321470
10 Decimal 28156728
12 Duodecimal 951a4a0
16 Hexadecimal 1ada338
20 Vigesimal 8fjbg8
36 Base36 grhvc

Cryptographic Hash Functions

md5 b7b1b97578abdc1bca5f65ebb5817e7f
sha1 20aaaadad449b3b6dab84a8a76a58680995c7561
sha256 b670a6c19e695b8f04960a19b05d1029d205d1390e28f3023f6e93ba1363895a
sha512 3019f309e2af4088bb9aba26a0d08264b4b04dccbffadcd3e53f3c1af1de212751b74cdebab94b376fb6bef21ee6087b749ce65d78478fc940ff5651d8d7e53c
ripemd-160 e3e77c658889b07e3db93a3076cb6a9cb43fd9eb

28156728 as geometric shapes

Circle

Radius = n
Diameter 56313456
Circumference 176913939.66785
Area 2.4906588393181E+15

Sphere

Radius = n
Volume 9.3505071305966E+22
Surface area 9.9626353572722E+15
Circumference 176913939.66785

Square

Length = n
Perimeter 112626912
Area 792801331665984
Diagonal 39819626.60965

Cube

Length = n
Surface area 4756807989995904
Volume 2.2322691453757E+22
Space diagonal 48768883.470897

Equilateral Triangle

Length = n
Perimeter 84470184
Area 3.4329304668844E+14
Altitude 24384441.735449

Triangular Pyramid

Length = n
Surface area 3.4329304668844E+14
Volume 2.6307544168811E+21
Height 13273208.869883