28397729 (number)

28397729 is an odd 8-digits composite number following 28397728 and preceding 28397730. In scientific notation, it is written as 2.8397729 × 10^7. The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors. There are 27673600 positive integers (up to 28397729) that are relatively prime to 28397729.

Interesting facts

Basic properties

Name

Name twenty-eight million three hundred ninety-seven thousand seven hundred twenty-nine

Notation

Scientific notation 2.8397729 × 10^7
Engineering notation 2.8397729 × 10^6

Prime Factorization of 28397729

Prime Factorization 12079 × 2351

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28397729
Product of the distinct prime numbers

The prime factorization of 28397729 is 12079 × 2351. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 7, 65, 11, 425, 877, 3939, 2832, 57505, 18080, 115807, 369945, 2153, 7607249, 71067734, 90334655, 234039974, 959897626, 8883910108, 8632995779

Basic calculations (n = 28397729)

Multiplication

n×y
n×2 56795458
n×3 85193187
n×4 113590916
n×5 141988645

Division

n÷y
n÷2 14198864.5
n÷3 9465909.6666667
n÷3 7099432.25
n÷5 5679545.8

Exponentiation

ny
n2 806431012357441
n3 2.2900809346122E+22
n4 6.5033097769185E+29
n5 1.8467922864798E+37

Nth Root

y√n
2√n 5328.9519607518
3√n 305.08992779597
4√n 72.999670963312
5√n 30.949719838726

Divisors of 28397729

1, 2351, 12079, 28397729

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28397728
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28397729 can be divided by 4 positive divisors. The sum of these divisors (counting 28397729) is 1, the average is 0.25.

Base conversion 28397729

Base System Value
2 Binary 1101100010101000010100001
3 Ternary 1222102202100202
4 Quaternary 1230111002201
5 Quinary 24232211404
6 Senary 2452354545
8 Octal 154250241
10 Decimal 28397729
12 Duodecimal 9615a55
16 Hexadecimal 1b150a1
20 Vigesimal 8h9e69
36 Base36 gwntt

Cryptographic Hash Functions

md5 53f44c3cedf4b2b303d7a0a076902c2f
sha1 0e3a0c8cbce3d096f7ed14473e2f456b5cde2d30
sha256 63b9dbd50b49f70339e665ee5e0096cd78b9f79dca5aea7b2fa0786acf446bba
sha512 ff891793c963a74812a407afec8bfdad261aa092deaf6d468e3c23f294c55a7902b333b1ff4119d2f8bcdebdeea218d9b6ea3d776bb340026ea07717385852e5
ripemd-160 c10ac6ff6713580262cf5d6b93014d3628d5d7b4

28397729 as geometric shapes

Circle

Radius = n
Diameter 56795458
Circumference 178428193.61007
Area 2.5334777440491E+15

Sphere

Radius = n
Volume 9.5926685870718E+22
Surface area 1.0133910976196E+16
Circumference 178428193.61007

Square

Length = n
Perimeter 113590916
Area 806431012357441
Diagonal 40160453.492396

Cube

Length = n
Surface area 4838586074144646
Volume 2.2900809346122E+22
Space diagonal 49186309.447572

Equilateral Triangle

Length = n
Perimeter 85193187
Area 3.4919487155057E+14
Altitude 24593154.723786

Triangular Pyramid

Length = n
Surface area 3.4919487155057E+14
Volume 2.6988862638839E+21
Height 13386817.830799