28129 (number)

28129 is an odd 5-digits composite number following 28128 and preceding 28130. In scientific notation, it is written as 2.8129 × 10^4. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 26884 positive integers (up to 28129) that are relatively prime to 28129.

Interesting facts

Basic properties

Name

Name twenty-eight thousand one hundred twenty-nine

Notation

Scientific notation 2.8129 × 10^4
Engineering notation 2.8129 × 10^3

Prime Factorization of 28129

Prime Factorization 23 × 1223

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28129
Product of the distinct prime numbers

The prime factorization of 28129 is 23 × 1223. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 7, 7, 75, 667, 194, 9364, 4963, 82414, 30023, 549248, 457543, 535020, 8592398, 7261522, 75408808, 362366382, 788825431, 6013608210, 9246096124

Basic calculations (n = 28129)

Multiplication

n×y
n×2 56258
n×3 84387
n×4 112516
n×5 140645

Division

n÷y
n÷2 14064.5
n÷3 9376.3333333333
n÷3 7032.25
n÷5 5625.8

Exponentiation

ny
n2 791240641
n3 22256807990689
n4 626061751970090881
n5 1.7610491021167E+22

Nth Root

y√n
2√n 167.71702358437
3√n 30.412451616664
4√n 12.950560744013
5√n 7.7594485639482

Divisors of 28129

1, 23, 1223, 28129

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28128
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28129 can be divided by 4 positive divisors. The sum of these divisors (counting 28129) is 1, the average is 0.25.

Base conversion 28129

Base System Value
2 Binary 110110111100001
3 Ternary 1102120211
4 Quaternary 12313201
5 Quinary 1400004
6 Senary 334121
8 Octal 66741
10 Decimal 28129
12 Duodecimal 14341
16 Hexadecimal 6de1
20 Vigesimal 3a69
36 Base36 lpd

Cryptographic Hash Functions

md5 701e4ca2021d8009e0a093bd3c708420
sha1 7549f77cc63bc5e55f17060f0c4f55a75adb12ae
sha256 428f668d692cd102288ecc2916cceae56fe263255036eb14e2e8935bf7b21df7
sha512 aaf49edd7946537ca62eddaea1439cd98f930692cfe4a5adab8b26799ecc123eb58c028929bb12a530059c259f6ef28d88345f046fccabd959961bbe01534c3b
ripemd-160 fdd257b07cab99509ff128a2f23d5e6194022321

28129 as geometric shapes

Circle

Radius = n
Diameter 56258
Circumference 176739.71950565
Area 2485755784.9873

Sphere

Radius = n
Volume 93229099301210
Surface area 9943023139.9491
Circumference 176739.71950565

Square

Length = n
Perimeter 112516
Area 791240641
Diagonal 39780.413295993

Cube

Length = n
Surface area 4747443846
Volume 22256807990689
Space diagonal 48720.857166105

Equilateral Triangle

Length = n
Perimeter 84387
Area 342617247.80634
Altitude 24360.428583052

Triangular Pyramid

Length = n
Surface area 342617247.80634
Volume 2622989976297.2
Height 13260.137765331