28553721 (number)

28553721 is an odd 8-digits composite number following 28553720 and preceding 28553722. In scientific notation, it is written as 2.8553721 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 16 positive divisors. There are 16315824 positive integers (up to 28553721) that are relatively prime to 28553721.

Interesting facts

Basic properties

Name

Name twenty-eight million five hundred fifty-three thousand seven hundred twenty-one

Notation

Scientific notation 2.8553721 × 10^7
Engineering notation 2.8553721 × 10^6

Prime Factorization of 28553721

Prime Factorization 3 × 7 × 7 × 7 × 27749

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 582729
Product of the distinct prime numbers

The prime factorization of 28553721 is 3 × 7 × 7 × 7 × 27749. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 10, 29, 42, 65, 637, 3659, 8853, 12044, 3929, 726613, 628206, 7188034, 2192889, 14647657, 25549321, 134929481, 501528754, 5189163398, 6825468919

Basic calculations (n = 28553721)

Multiplication

n×y
n×2 57107442
n×3 85661163
n×4 114214884
n×5 142768605

Division

n÷y
n÷2 14276860.5
n÷3 9517907
n÷3 7138430.25
n÷5 5710744.2

Exponentiation

ny
n2 815314982945841
n3 2.3280276550155E+22
n4 6.6473852141598E+29
n5 1.8980758278464E+37

Nth Root

y√n
2√n 5343.5681898896
3√n 305.64753941524
4√n 73.099714020573
5√n 30.983647449081

Divisors of 28553721

1, 3, 7, 21, 49, 147, 343, 1029, 27749, 83247, 194243, 582729, 1359701, 4079103, 9517907, 28553721

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 -28553720
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 28553721 can be divided by 16 positive divisors. The sum of these divisors (counting 28553721) is 1, the average is 0.0625.

Base conversion 28553721

Base System Value
2 Binary 1101100111011000111111001
3 Ternary 1222201200100020
4 Quaternary 1230323013321
5 Quinary 24302204341
6 Senary 2500001053
8 Octal 154730771
10 Decimal 28553721
12 Duodecimal 9690189
16 Hexadecimal 1b3b1f9
20 Vigesimal 8i9461
36 Base36 h006x

Cryptographic Hash Functions

md5 54089b25f243a8ae718f764cc1d7ad5d
sha1 20b928163f6d3242b9c301e250094a25d1d160a4
sha256 eb3e7d9e25ecd3707943561dd71670cbd22b2bd4dc52e0afbfd98f807eecceeb
sha512 884b9baa680f3eca1c7207e85f354810c76f15e24011192e921f50448a7e382e13864234ca466c242d1740c5590fb0f644bf49d2af69e1186d643a590e9142f5
ripemd-160 f4020a602c0e9cfb6aca2725dfb30effd2ffa49f

28553721 as geometric shapes

Circle

Radius = n
Diameter 57107442
Circumference 179408320.25251
Area 2.5613875607843E+15

Sphere

Radius = n
Volume 9.7516194378009E+22
Surface area 1.0245550243137E+16
Circumference 179408320.25251

Square

Length = n
Perimeter 114214884
Area 815314982945841
Diagonal 40381059.494417

Cube

Length = n
Surface area 4891889897675046
Volume 2.3280276550155E+22
Space diagonal 49456495.517146

Equilateral Triangle

Length = n
Perimeter 85661163
Area 3.5304174365859E+14
Altitude 24728247.758573

Triangular Pyramid

Length = n
Surface area 3.5304174365859E+14
Volume 2.7436069027522E+21
Height 13460353.164806