28231388 (number)

28231388 is an even 8-digits composite number following 28231387 and preceding 28231389. In scientific notation, it is written as 2.8231388 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors. There are 13904880 positive integers (up to 28231388) that are relatively prime to 28231388.

Interesting facts

Basic properties

Name

Name twenty-eight million two hundred thirty-one thousand three hundred eighty-eight

Notation

Scientific notation 2.8231388 × 10^7
Engineering notation 2.8231388 × 10^6

Prime Factorization of 28231388

Prime Factorization 2 × 2 × 67 × 105341

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 14115694
Product of the distinct prime numbers

The prime factorization of 28231388 is 2 × 2 × 67 × 105341. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 3, 14, 27, 301, 999, 1738, 9413, 6607, 85378, 963490, 208330, 88304, 6561685, 24807815, 25629026, 530819449, 966333750, 8561496257, 8832455715

Basic calculations (n = 28231388)

Multiplication

n×y
n×2 56462776
n×3 84694164
n×4 112925552
n×5 141156940

Division

n÷y
n÷2 14115694
n÷3 9410462.6666667
n÷3 7057847
n÷5 5646277.6

Exponentiation

ny
n2 797011268406544
n3 2.2500734358757E+22
n4 6.3522696196701E+29
n5 1.7933338831352E+37

Nth Root

y√n
2√n 5313.3217482099
3√n 304.49306814893
4√n 72.892535613805
5√n 30.913376705371

Divisors of 28231388

1, 2, 4, 67, 134, 268, 105341, 210682, 421364, 7057847, 14115694, 28231388

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28231387
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28231388 can be divided by 12 positive divisors. The sum of these divisors (counting 28231388) is 1, the average is 0.083333333333333.

Base conversion 28231388

Base System Value
2 Binary 1101011101100011011011100
3 Ternary 1222010022011222
4 Quaternary 1223230123130
5 Quinary 24211401023
6 Senary 2445032512
8 Octal 153543334
10 Decimal 28231388
12 Duodecimal 9555738
16 Hexadecimal 1aec6dc
20 Vigesimal 8g8i98
36 Base36 gt3h8

Cryptographic Hash Functions

md5 9143e4dc3b5647e7155dce95c78c615a
sha1 1872e4fb5e726957e75b1784a4c3bf83413875ae
sha256 429a1b432b80d4f92e3540b153a43a9b109d84e9b68514b37b8d79abb938c63c
sha512 dd1627d0e3d13cba4d790fef74e012f15eba4358f0e7870d73cdabeb822714d3c5f946ff1c75a3854ae3f42add5cd25d784b47229bb6a6b3e019c6f9a8076e93
ripemd-160 dc98b092d26f4e22c95ceb5a9e6d8ab1c233d6b0

28231388 as geometric shapes

Circle

Radius = n
Diameter 56462776
Circumference 177383042.28289
Area 2.5038847456543E+15

Sphere

Radius = n
Volume 9.4250855682463E+22
Surface area 1.0015538982617E+16
Circumference 177383042.28289

Square

Length = n
Perimeter 112925552
Area 797011268406544
Diagonal 39925211.794217

Cube

Length = n
Surface area 4782067610439264
Volume 2.2500734358757E+22
Space diagonal 48898198.38419

Equilateral Triangle

Length = n
Perimeter 84694164
Area 3.4511600277126E+14
Altitude 24449099.192095

Triangular Pyramid

Length = n
Surface area 3.4511600277126E+14
Volume 2.6517369744591E+21
Height 13308403.931406