28289989 (number)

28289989 is an odd 8-digits composite number following 28289988 and preceding 28289990. In scientific notation, it is written as 2.8289989 × 10^7. The sum of its digits is 55. It has a total of 4 prime factors and 16 positive divisors. There are 21065472 positive integers (up to 28289989) that are relatively prime to 28289989.

Interesting facts

Basic properties

Name

Name twenty-eight million two hundred eighty-nine thousand nine hundred eighty-nine

Notation

Scientific notation 2.8289989 × 10^7
Engineering notation 2.8289989 × 10^6

Prime Factorization of 28289989

Prime Factorization 13 × 7 × 17 × 18287

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28289989
Product of the distinct prime numbers

The prime factorization of 28289989 is 13 × 7 × 17 × 18287. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 9, 36, 30, 484, 419, 4061, 4456, 6609, 58973, 199655, 554380, 1332709, 378816, 35478156, 98176858, 157621735, 733472325, 9250399387, 9167976837

Basic calculations (n = 28289989)

Multiplication

n×y
n×2 56579978
n×3 84869967
n×4 113159956
n×5 141449945

Division

n÷y
n÷2 14144994.5
n÷3 9429996.3333333
n÷3 7072497.25
n÷5 5657997.8

Exponentiation

ny
n2 800323477620121
n3 2.2641142378315E+22
n4 6.4051766882996E+29
n5 1.8120237805505E+37

Nth Root

y√n
2√n 5318.8334247276
3√n 304.70360527974
4√n 72.930332679398
5√n 30.926199684764

Divisors of 28289989

1, 7, 13, 17, 91, 119, 221, 1547, 18287, 128009, 237731, 310879, 1664117, 2176153, 4041427, 28289989

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28289988
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28289989 can be divided by 16 positive divisors. The sum of these divisors (counting 28289989) is 1, the average is 0.0625.

Base conversion 28289989

Base System Value
2 Binary 1101011111010101111000101
3 Ternary 1222020021120101
4 Quaternary 1223322233011
5 Quinary 24220234424
6 Senary 2450204101
8 Octal 153725705
10 Decimal 28289989
12 Duodecimal 9583631
16 Hexadecimal 1afabc5
20 Vigesimal 8gg4j9
36 Base36 gucp1

Cryptographic Hash Functions

md5 f9d524349df606a14e80c3cf879e3729
sha1 52352b7e6d16b394e84880d4df7b04be1e49fe72
sha256 bc77e846089636b9eec0b48e165124c066901479a8143a8f2e0036440f309443
sha512 ab8ca4022e288d4f6e37aa78c00f3edb15b776b1db5541189630405fe0ade2dc9469e01e25f00924e6e3c903bd71e8a0db4d8482352a7284a8e9c9ff14eba64f
ripemd-160 861bd9e9b67161abe275b5b1858f1f2fa9b90c82

28289989 as geometric shapes

Circle

Radius = n
Diameter 56579978
Circumference 177751243.22507
Area 2.5142903577868E+15

Sphere

Radius = n
Volume 9.483899541946E+22
Surface area 1.0057161431147E+16
Circumference 177751243.22507

Square

Length = n
Perimeter 113159956
Area 800323477620121
Diagonal 40008086.123186

Cube

Length = n
Surface area 4801940865720726
Volume 2.2641142378315E+22
Space diagonal 48999698.293565

Equilateral Triangle

Length = n
Perimeter 84869967
Area 3.4655023143207E+14
Altitude 24499849.146782

Triangular Pyramid

Length = n
Surface area 3.4655023143207E+14
Volume 2.6682842182528E+21
Height 13336028.707729