28821640 (number)

28821640 is an even 8-digits composite number following 28821639 and preceding 28821641. In scientific notation, it is written as 2.8821640 × 10^7. The sum of its digits is 31. It has a total of 6 prime factors and 32 positive divisors. There are 11487232 positive integers (up to 28821640) that are relatively prime to 28821640.

Interesting facts

Basic properties

Name

Name twenty-eight million eight hundred twenty-one thousand six hundred forty

Notation

Scientific notation 2.8821640 × 10^7
Engineering notation 2.8821640 × 10^6

Prime Factorization of 28821640

Prime Factorization 2 × 2 × 2 × 5 × 317 × 2273

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 7205410
Product of the distinct prime numbers

The prime factorization of 28821640 is 2 × 2 × 2 × 5 × 317 × 2273. Since it has a total of 6 prime factors.

Most popular turbo-numbers

10, 1, 24, 88, 199, 150, 8055, 3068, 63954, 96142, 279812, 614023, 1851057, 3385693, 9957291, 59941033, 102851507, 141570351, 6266846312, 7335590135

Basic calculations (n = 28821640)

Multiplication

n×y
n×2 57643280
n×3 86464920
n×4 115286560
n×5 144108200

Division

n÷y
n÷2 14410820
n÷3 9607213.3333333
n÷3 7205410
n÷5 5764328

Exponentiation

ny
n2 830686932289600
n3 2.3941759715155E+22
n4 6.9004077947671E+29
n5 1.9888106931397E+37

Nth Root

y√n
2√n 5368.5789553661
3√n 306.60052658908
4√n 73.270587245948
5√n 31.041574235186

Divisors of 28821640

1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2273, 2536, 3170, 4546, 6340, 9092, 11365, 12680, 18184, 22730, 45460, 90920, 720541, 1441082, 2882164, 3602705, 5764328, 7205410, 14410820, 28821640

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 -28821639
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 28821640 can be divided by 32 positive divisors. The sum of these divisors (counting 28821640) is 1, the average is 0.03125.

Base conversion 28821640

Base System Value
2 Binary 1101101111100100010001000
3 Ternary 2000020021212011
4 Quaternary 1231330202020
5 Quinary 24334243030
6 Senary 2505425304
8 Octal 155744210
10 Decimal 28821640
12 Duodecimal 979b234
16 Hexadecimal 1b7c888
20 Vigesimal 902e20
36 Base36 h5qx4

Cryptographic Hash Functions

md5 cf5aa2f391d1b690a1435a3d097373e1
sha1 165cb788a18c0ccfba838f7f2e8d0dbdd36bda7c
sha256 9b31bbb983fa0d961a60b43d2ac668a7f63e73c75a118f883306ce0fed72cf4b
sha512 515dd6a157c10b53b6519c171675fb7b2d55b7667d1a034b2c4ad61a9cfe71d9d20cc34e81b3c5e39fd6ac27e956b6e8d08f1b35fd4f1661417d1ccf30b188df
ripemd-160 64619f81eb0423a9ed5330e6d796fc23a0534ac4

28821640 as geometric shapes

Circle

Radius = n
Diameter 57643280
Circumference 181091704.97682
Area 2.609679963914E+15

Sphere

Radius = n
Volume 1.0028700858019E+23
Surface area 1.0438719855656E+16
Circumference 181091704.97682

Square

Length = n
Perimeter 115286560
Area 830686932289600
Diagonal 40759954.177835

Cube

Length = n
Surface area 4984121593737600
Volume 2.3941759715155E+22
Space diagonal 49920544.837459

Equilateral Triangle

Length = n
Perimeter 86464920
Area 3.5969799297728E+14
Altitude 24960272.41873

Triangular Pyramid

Length = n
Surface area 3.5969799297728E+14
Volume 2.8215634413542E+21
Height 13586651.392612