28391331 (number)

28391331 is an odd 8-digits composite number following 28391330 and preceding 28391332. In scientific notation, it is written as 2.8391331 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 18606632 positive integers (up to 28391331) that are relatively prime to 28391331.

Interesting facts

Basic properties

Name

Name twenty-eight million three hundred ninety-one thousand three hundred thirty-one

Notation

Scientific notation 2.8391331 × 10^7
Engineering notation 2.8391331 × 10^6

Prime Factorization of 28391331

Prime Factorization 3 × 59 × 160403

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28391331
Product of the distinct prime numbers

The prime factorization of 28391331 is 3 × 59 × 160403. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 9, 7, 40, 84, 415, 6933, 4224, 2485, 3029, 604537, 534595, 2219520, 2380037, 44849224, 15173507, 336908776, 478017497, 744117430, 462171720

Basic calculations (n = 28391331)

Multiplication

n×y
n×2 56782662
n×3 85173993
n×4 113565324
n×5 141956655

Division

n÷y
n÷2 14195665.5
n÷3 9463777
n÷3 7097832.75
n÷5 5678266.2

Exponentiation

ny
n2 806067675951561
n3 2.2885334196342E+22
n4 6.4974509821395E+29
n5 1.844712814902E+37

Nth Root

y√n
2√n 5328.3516212803
3√n 305.06701385135
4√n 72.995558914774
5√n 30.948325120471

Divisors of 28391331

1, 3, 59, 177, 160403, 481209, 9463777, 28391331

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 -28391330
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 28391331 can be divided by 8 positive divisors. The sum of these divisors (counting 28391331) is 1, the average is 0.125.

Base conversion 28391331

Base System Value
2 Binary 1101100010011011110100011
3 Ternary 1222102102120210
4 Quaternary 1230103132203
5 Quinary 24232010311
6 Senary 2452305203
8 Octal 154233643
10 Decimal 28391331
12 Duodecimal 9612203
16 Hexadecimal 1b137a3
20 Vigesimal 8h8i6b
36 Base36 gwiw3

Cryptographic Hash Functions

md5 0ce663a4d36fead8a917f200675152cf
sha1 85c9d2cd88108bb74c95c1ce10c771516aff4cb2
sha256 8bdb3cef43ec22eebb373f0e85d8fa8c297990ac991daa9db46f574bd362413f
sha512 9a5f6cc7749222c350db8fdf3d7cdaa2cb0d161abae9711d0965a385a811dd63385b8ec4869eebfdb5dd3ac64c12f3bdfbc9b718092845891f088197e10743fa
ripemd-160 c18bf78a912dcb1be09b3f9ccab5f28e2ee6ddbb

28391331 as geometric shapes

Circle

Radius = n
Diameter 56782662
Circumference 178387993.79047
Area 2.5323362890656E+15

Sphere

Radius = n
Volume 9.5861863714898E+22
Surface area 1.0129345156262E+16
Circumference 178387993.79047

Square

Length = n
Perimeter 113565324
Area 806067675951561
Diagonal 40151405.354024

Cube

Length = n
Surface area 4836406055709366
Volume 2.2885334196342E+22
Space diagonal 49175227.786505

Equilateral Triangle

Length = n
Perimeter 85173993
Area 3.4903754227177E+14
Altitude 24587613.893253

Triangular Pyramid

Length = n
Surface area 3.4903754227177E+14
Volume 2.6970624999922E+21
Height 13383801.784675