28831728 (number)

28831728 is an even 8-digits composite number following 28831727 and preceding 28831729. In scientific notation, it is written as 2.8831728 × 10^7. The sum of its digits is 39. It has a total of 8 prime factors and 80 positive divisors. There are 8921088 positive integers (up to 28831728) that are relatively prime to 28831728.

Interesting facts

Basic properties

Name

Name twenty-eight million eight hundred thirty-one thousand seven hundred twenty-eight

Notation

Scientific notation 2.8831728 × 10^7
Engineering notation 2.8831728 × 10^6

Prime Factorization of 28831728

Prime Factorization 2 × 2 × 2 × 2 × 3 × 17 × 89 × 397

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 3603966
Product of the distinct prime numbers

The prime factorization of 28831728 is 2 × 2 × 2 × 2 × 3 × 17 × 89 × 397. Since it has a total of 8 prime factors.

Most popular turbo-numbers

2, 1, 71, 93, 626, 932, 2529, 2750, 51915, 24370, 797839, 890310, 604684, 9725458, 70908131, 20646424, 836442428, 603964009, 1006383867, 8076534005

Basic calculations (n = 28831728)

Multiplication

n×y
n×2 57663456
n×3 86495184
n×4 115326912
n×5 144158640

Division

n÷y
n÷2 14415864
n÷3 9610576
n÷3 7207932
n÷5 5766345.6

Exponentiation

ny
n2 831268539465984
n3 2.3966908424841E+22
n4 6.9100738470591E+29
n5 1.9922936961832E+37

Nth Root

y√n
2√n 5369.5184141597
3√n 306.63629398838
4√n 73.276997851711
5√n 31.043746932976

Divisors of 28831728

1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 89, 102, 136, 178, 204, 267, 272, 356, 397, 408, 534, 712, 794, 816, 1068, 1191, 1424, 1513, 1588, 2136, 2382, 3026, 3176, 4272, 4539, 4764, 6052, 6352, 6749, 9078, 9528, 12104, 13498, 18156, 19056, 20247, 24208, 26996, 35333, 36312, 40494, 53992, 70666, 72624, 80988, 105999, 107984, 141332, 161976, 211998, 282664, 323952, 423996, 565328, 600661, 847992, 1201322, 1695984, 1801983, 2402644, 3603966, 4805288, 7207932, 9610576, 14415864, 28831728

80 divisors

τ Total Divisors 80
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28831727
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0125
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 80
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28831728 can be divided by 80 positive divisors. The sum of these divisors (counting 28831728) is 1, the average is 0.0125.

Base conversion 28831728

Base System Value
2 Binary 1101101111110111111110000
3 Ternary 2000020210200210
4 Quaternary 1231332333300
5 Quinary 24340103403
6 Senary 2505544120
8 Octal 155767760
10 Decimal 28831728
12 Duodecimal 97a5040
16 Hexadecimal 1b7eff0
20 Vigesimal 903j68
36 Base36 h5ypc

Cryptographic Hash Functions

md5 105751e454e6a8c14856118570a9d3c0
sha1 b1774b8e55dd21a3db69c30162743a74de48b9fd
sha256 a64bdc8ab554c44845d300768d0a8b0c248d9aac1f3e27713974858ef2d29b4b
sha512 6259282a7cf35d4cbd2dffeb80d1b8fcb3b3c26c33bf4a8d0d7f7363d81bb8b4fc496437d812f57c41d3410af87ad710374b01f600ee10e31b80c72d3df04baf
ripemd-160 8179516523a2fc2be600c8beb82c3ab8959afb8c

28831728 as geometric shapes

Circle

Radius = n
Diameter 57663456
Circumference 181155089.7502
Area 2.6115071367467E+15

Sphere

Radius = n
Volume 1.0039235124898E+23
Surface area 1.0446028546987E+16
Circumference 181155089.7502

Square

Length = n
Perimeter 115326912
Area 831268539465984
Diagonal 40774220.764252

Cube

Length = n
Surface area 4987611236795904
Volume 2.3966908424841E+22
Space diagonal 49938017.766006

Equilateral Triangle

Length = n
Perimeter 86495184
Area 3.5994983627216E+14
Altitude 24969008.883003

Triangular Pyramid

Length = n
Surface area 3.5994983627216E+14
Volume 2.8245272452136E+21
Height 13591406.921417