28223721 (number)

28223721 is an odd 8-digits composite number following 28223720 and preceding 28223722. In scientific notation, it is written as 2.8223721 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors. There are 17822592 positive integers (up to 28223721) that are relatively prime to 28223721.

Interesting facts

Basic properties

Name

Name twenty-eight million two hundred twenty-three thousand seven hundred twenty-one

Notation

Scientific notation 2.8223721 × 10^7
Engineering notation 2.8223721 × 10^6

Prime Factorization of 28223721

Prime Factorization 3 × 3 × 27 × 19 × 6113

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 9407907
Product of the distinct prime numbers

The prime factorization of 28223721 is 3 × 3 × 27 × 19 × 6113. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 8, 86, 87, 186, 660, 1231, 1822, 88041, 55586, 347330, 545577, 4707008, 9832982, 25140695, 53654244, 468868889, 626942306, 3544269704, 3357442746

Basic calculations (n = 28223721)

Multiplication

n×y
n×2 56447442
n×3 84671163
n×4 112894884
n×5 141118605

Division

n÷y
n÷2 14111860.5
n÷3 9407907
n÷3 7055930.25
n÷5 5644744.2

Exponentiation

ny
n2 796578427085841
n3 2.248240728069E+22
n4 6.3453719049855E+29
n5 1.7909000628755E+37

Nth Root

y√n
2√n 5312.6002108196
3√n 304.46550119966
4√n 72.887586122875
5√n 30.911697449571

Divisors of 28223721

1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 1539, 4617, 6113, 18339, 55017, 116147, 165051, 348441, 495153, 1045323, 1485459, 3135969, 9407907, 28223721

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28223720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28223721 can be divided by 24 positive divisors. The sum of these divisors (counting 28223721) is 1, the average is 0.041666666666667.

Base conversion 28223721

Base System Value
2 Binary 1101011101010100011101001
3 Ternary 1222002220200000
4 Quaternary 1223222203221
5 Quinary 24211124341
6 Senary 2444533213
8 Octal 153524351
10 Decimal 28223721
12 Duodecimal 9551209
16 Hexadecimal 1aea8e9
20 Vigesimal 8g7j61
36 Base36 gsxk9

Cryptographic Hash Functions

md5 f7e406930a7f27d961da3c27980e9a31
sha1 29ef7d35a5cfb9df5ac8b4b781e5ca1324f6ed6f
sha256 2896add1479bfc794b42e21e984788e0e31966e8cae6fbdd53ccf727552bdd0b
sha512 13af8afbc659f7c0494545e80559fde9e083abbde4be0efa530584000f5ea4da704b822f456a8b7957668f29a369582e44658b7aaf0bb13070917c366dfd8fe4
ripemd-160 9c8bb00384eda759e6100fe425b80c25299be4a3

28223721 as geometric shapes

Circle

Radius = n
Diameter 56447442
Circumference 177334869.10114
Area 2.502524934541E+15

Sphere

Radius = n
Volume 9.4174087397371E+22
Surface area 1.0010099738164E+16
Circumference 177334869.10114

Square

Length = n
Perimeter 112894884
Area 796578427085841
Diagonal 39914369.018834

Cube

Length = n
Surface area 4779470562515046
Volume 2.248240728069E+22
Space diagonal 48884918.750649

Equilateral Triangle

Length = n
Perimeter 84671163
Area 3.4492857698149E+14
Altitude 24442459.375324

Triangular Pyramid

Length = n
Surface area 3.4492857698149E+14
Volume 2.6495771075956E+21
Height 13304789.672945