28289871 (number)

28289871 is an odd 8-digits composite number following 28289870 and preceding 28289872. In scientific notation, it is written as 2.8289871 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 8 positive divisors. There are 18859896 positive integers (up to 28289871) that are relatively prime to 28289871.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8289871 × 10^7
Engineering notation 2.8289871 × 10^6

Prime Factorization of 28289871

Prime Factorization 3 × 3 × 3 × 1047773

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 3143319
Product of the distinct prime numbers

The prime factorization of 28289871 is 3 × 3 × 3 × 1047773. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 10, 80, 51, 988, 277, 8273, 1133, 17979, 96747, 92810, 87140, 4361922, 9593819, 62176028, 48128178, 260203119, 413040372, 9331066025, 5062895774

Basic calculations (n = 28289871)

Multiplication

n×y
n×2 56579742
n×3 84869613
n×4 113159484
n×5 141449355

Division

n÷y
n÷2 14144935.5
n÷3 9429957
n÷3 7072467.75
n÷5 5657974.2

Exponentiation

ny
n2 800316801196641
n3 2.2640859064986E+22
n4 6.4050698227762E+29
n5 1.8119859903233E+37

Nth Root

y√n
2√n 5318.8223320581
3√n 304.70318163076
4√n 72.930256629592
5√n 30.926173885548

Divisors of 28289871

1, 3, 9, 27, 1047773, 3143319, 9429957, 28289871

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28289870
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28289871 can be divided by 8 positive divisors. The sum of these divisors (counting 28289871) is 1, the average is 0.125.

Base conversion 28289871

Base System Value
2 Binary 1101011111010101101001111
3 Ternary 1222020021102000
4 Quaternary 1223322231033
5 Quinary 24220233441
6 Senary 2450203343
8 Octal 153725517
10 Decimal 28289871
12 Duodecimal 9583553
16 Hexadecimal 1afab4f
20 Vigesimal 8gg4db
36 Base36 guclr

Cryptographic Hash Functions

md5 cdf5996e103a5ffbabc4e59f7912b034
sha1 101fe1404428f4a4b1cdd5e09ee6b491b68740e7
sha256 d2f9b044de84271d89fe8eac1b2a8cd8238b1392a154024a17d15202967f8234
sha512 7377a5ea983bc2da1b9c74b57883ab9ceea94c061413b209832d7787d2b6e134a617bd996f50d3baa1084324b724b1b7ff3619bbaa375dcd81a740457fde1ead
ripemd-160 ce9254d9ba5d15b667f47b51516f7b298415d76e

28289871 as geometric shapes

Circle

Radius = n
Diameter 56579742
Circumference 177750501.80921
Area 2.5142693831839E+15

Sphere

Radius = n
Volume 9.4837808679361E+22
Surface area 1.0057077532735E+16
Circumference 177750501.80921

Square

Length = n
Perimeter 113159484
Area 800316801196641
Diagonal 40007919.245985

Cube

Length = n
Surface area 4801900807179846
Volume 2.2640859064986E+22
Space diagonal 48999493.911569

Equilateral Triangle

Length = n
Perimeter 84869613
Area 3.465473404559E+14
Altitude 24499746.955785

Triangular Pyramid

Length = n
Surface area 3.465473404559E+14
Volume 2.6682508294567E+21
Height 13335973.081995