28931688 (number)

28931688 is an even 8-digits composite number following 28931687 and preceding 28931689. In scientific notation, it is written as 2.8931688 × 10^7. The sum of its digits is 45. It has a total of 6 prime factors and 32 positive divisors. There are 9075456 positive integers (up to 28931688) that are relatively prime to 28931688.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-one thousand six hundred eighty-eight

Notation

Scientific notation 2.8931688 × 10^7
Engineering notation 2.8931688 × 10^6

Prime Factorization of 28931688

Prime Factorization 2 × 2 × 2 × 27 × 17 × 7879

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 7232922
Product of the distinct prime numbers

The prime factorization of 28931688 is 2 × 2 × 2 × 27 × 17 × 7879. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 9, 44, 52, 729, 545, 5745, 9342, 82588, 35720, 105920, 843646, 6769783, 8159236, 54367829, 92952469, 847299262, 853521789, 6282704682, 1573579045

Basic calculations (n = 28931688)

Multiplication

n×y
n×2 57863376
n×3 86795064
n×4 115726752
n×5 144658440

Division

n÷y
n÷2 14465844
n÷3 9643896
n÷3 7232922
n÷5 5786337.6

Exponentiation

ny
n2 837042570529344
n3 2.4217054493273E+22
n4 7.0064026487837E+29
n5 2.0270705543698E+37

Nth Root

y√n
2√n 5378.8184576169
3√n 306.99025599761
4√n 73.340428534451
5√n 31.065242962849

Divisors of 28931688

1, 2, 4, 8, 17, 27, 34, 54, 68, 108, 136, 216, 459, 918, 1836, 3672, 7879, 15758, 31516, 63032, 133943, 212733, 267886, 425466, 535772, 850932, 1071544, 1701864, 3616461, 7232922, 14465844, 28931688

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28931687
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28931688 can be divided by 32 positive divisors. The sum of these divisors (counting 28931688) is 1, the average is 0.03125.

Base conversion 28931688

Base System Value
2 Binary 1101110010111011001101000
3 Ternary 2000102212211000
4 Quaternary 1232113121220
5 Quinary 24401303223
6 Senary 2512035000
8 Octal 156273150
10 Decimal 28931688
12 Duodecimal 9832a60
16 Hexadecimal 1b97668
20 Vigesimal 90g948
36 Base36 h83u0

Cryptographic Hash Functions

md5 6559603bdf9b9ab6a00cae791c6bb199
sha1 0a49ae76351613f3e37a43d772159b0a85bd14ff
sha256 7ae5d582c2aebf1713626a763b29bffb6ceb97da1da53cbe5700afede1f231f0
sha512 47f3e612ed46070a4741d0b3a0eb6cf7bda9d17abd41575fc0810aea48d7840209c2ed6d134e86e702aa4385765c2c62f601851915148fb9ea6004e70d33d894
ripemd-160 f2cf02b6473da91ee902dfc3477f0ddd78d76a3a

28931688 as geometric shapes

Circle

Radius = n
Diameter 57863376
Circumference 181783156.9535
Area 2.6296467903169E+15

Sphere

Radius = n
Volume 1.014401606502E+23
Surface area 1.0518587161268E+16
Circumference 181783156.9535

Square

Length = n
Perimeter 115726752
Area 837042570529344
Diagonal 40915585.551947

Cube

Length = n
Surface area 5022255423176064
Volume 2.4217054493273E+22
Space diagonal 50111153.564731

Equilateral Triangle

Length = n
Perimeter 86795064
Area 3.6245006506372E+14
Altitude 25055576.782365

Triangular Pyramid

Length = n
Surface area 3.6245006506372E+14
Volume 2.8540072420929E+21
Height 13638528.517316