28166721 (number)

28166721 is an odd 8-digits composite number following 28166720 and preceding 28166722. In scientific notation, it is written as 2.8166721 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 16015680 positive integers (up to 28166721) that are relatively prime to 28166721.

Interesting facts

Basic properties

Name

Name twenty-eight million one hundred sixty-six thousand seven hundred twenty-one

Notation

Scientific notation 2.8166721 × 10^7
Engineering notation 2.8166721 × 10^6

Prime Factorization of 28166721

Prime Factorization 19 × 3 × 1837 × 269

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28166721
Product of the distinct prime numbers

The prime factorization of 28166721 is 19 × 3 × 1837 × 269. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 8, 61, 97, 77, 700, 9640, 3440, 80599, 78932, 747067, 379350, 5012481, 186973, 35296929, 64634064, 266408447, 244988277, 3929528540, 728542236

Basic calculations (n = 28166721)

Multiplication

n×y
n×2 56333442
n×3 84500163
n×4 112666884
n×5 140833605

Division

n÷y
n÷2 14083360.5
n÷3 9388907
n÷3 7041680.25
n÷5 5633344.2

Exponentiation

ny
n2 793364171891841
n3 2.2346467281074E+22
n4 6.2942670924163E+29
n5 1.7728886509157E+37

Nth Root

y√n
2√n 5307.2328948332
3√n 304.26039914339
4√n 72.850757681943
5√n 30.899201635476

Divisors of 28166721

1, 3, 19, 57, 269, 807, 1837, 5111, 5511, 15333, 34903, 104709, 494153, 1482459, 9388907, 28166721

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28166720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28166721 can be divided by 16 positive divisors. The sum of these divisors (counting 28166721) is 1, the average is 0.0625.

Base conversion 28166721

Base System Value
2 Binary 1101011011100101001000001
3 Ternary 1222000000110220
4 Quaternary 1223130221001
5 Quinary 24202313341
6 Senary 2443413253
8 Octal 153345101
10 Decimal 28166721
12 Duodecimal 9524229
16 Hexadecimal 1adca41
20 Vigesimal 8g0gg1
36 Base36 grpkx

Cryptographic Hash Functions

md5 d80dcb465f16a92aa15a23e8aa15da3e
sha1 b8ed77553dc8e925063911be7c9e75eda1af032f
sha256 e410fd0350b1ba7b99a0153723a30270121b5fd88403fb7858acb13be0c4dbb3
sha512 89506447577bc643652438ab580975c7563f71fa29471e6e1bb6fcdf886e9e0322e1e24c904e705cffd6a0c071de86ec008aa622580a34ce01130a7055249b3c
ripemd-160 73e0930b2327cb6679c23a6aa729b05b243a3828

28166721 as geometric shapes

Circle

Radius = n
Diameter 56333442
Circumference 176976727.53863
Area 2.4924270540368E+15

Sphere

Radius = n
Volume 9.360466325854E+22
Surface area 9.969708216147E+15
Circumference 176976727.53863

Square

Length = n
Perimeter 112666884
Area 793364171891841
Diagonal 39833758.845779

Cube

Length = n
Surface area 4760185031351046
Volume 2.2346467281074E+22
Space diagonal 48786191.854617

Equilateral Triangle

Length = n
Perimeter 84500163
Area 3.4353676365537E+14
Altitude 24393095.927309

Triangular Pyramid

Length = n
Surface area 3.4353676365537E+14
Volume 2.6335564250017E+21
Height 13277919.61526