28921815 (number)

28921815 is an odd 8-digits composite number following 28921814 and preceding 28921816. In scientific notation, it is written as 2.8921815 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors. There are 14234688 positive integers (up to 28921815) that are relatively prime to 28921815.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred twenty-one thousand eight hundred fifteen

Notation

Scientific notation 2.8921815 × 10^7
Engineering notation 2.8921815 × 10^6

Prime Factorization of 28921815

Prime Factorization 3 × 15 × 13 × 13 × 3803

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 2224755
Product of the distinct prime numbers

The prime factorization of 28921815 is 3 × 15 × 13 × 13 × 3803. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 4, 46, 65, 633, 314, 8027, 7969, 76850, 43886, 464043, 631184, 4225683, 7810438, 41146094, 66990743, 938625370, 287393483, 191750104, 4093686091

Basic calculations (n = 28921815)

Multiplication

n×y
n×2 57843630
n×3 86765445
n×4 115687260
n×5 144609075

Division

n÷y
n÷2 14460907.5
n÷3 9640605
n÷3 7230453.75
n÷5 5784363

Exponentiation

ny
n2 836471382894225
n3 2.4192270588861E+22
n4 6.9968437440098E+29
n5 2.0236142034816E+37

Nth Root

y√n
2√n 5377.9006126927
3√n 306.9553316656
4√n 73.334170839334
5√n 31.063122457345

Divisors of 28921815

1, 3, 13, 15, 39, 45, 169, 195, 507, 585, 2535, 3803, 7605, 11409, 49439, 57045, 148317, 171135, 642707, 741585, 1928121, 2224755, 9640605, 28921815

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 -28921814
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 28921815 can be divided by 24 positive divisors. The sum of these divisors (counting 28921815) is 1, the average is 0.041666666666667.

Base conversion 28921815

Base System Value
2 Binary 1101110010100111111010111
3 Ternary 2000102101021100
4 Quaternary 1232110333113
5 Quinary 24400444230
6 Senary 2511521143
8 Octal 156247727
10 Decimal 28921815
12 Duodecimal 98291b3
16 Hexadecimal 1b94fd7
20 Vigesimal 90f4af
36 Base36 h7w7r

Cryptographic Hash Functions

md5 1a794b811205de54d230c18c3ca52cc9
sha1 f245df1f154d556c6fd9ede9d210cf436ec8452e
sha256 5674a99b045217ef8e0d9495bb566b24db448b9c00ee6547e5a4cc58e2025c4e
sha512 1d262a1230af091f36733506c8f95dbc0873572b1ae4a40c79179f6a7ee621c25f36b9b861b5b32a5ca6f51a5d773d8f2647ab4a0e5fc9f11c9babdefc2e63bc
ripemd-160 757aa2168b9f494cc2c8e698b10b9603e8bb52b0

28921815 as geometric shapes

Circle

Radius = n
Diameter 57843630
Circumference 181721123.06497
Area 2.6278523514386E+15

Sphere

Radius = n
Volume 1.0133634607416E+23
Surface area 1.0511409405754E+16
Circumference 181721123.06497

Square

Length = n
Perimeter 115687260
Area 836471382894225
Diagonal 40901623.021446

Cube

Length = n
Surface area 5018828297365350
Volume 2.4192270588861E+22
Space diagonal 50094053.027108

Equilateral Triangle

Length = n
Perimeter 86765445
Area 3.6220273356255E+14
Altitude 25047026.513554

Triangular Pyramid

Length = n
Surface area 3.6220273356255E+14
Volume 2.8510864309472E+21
Height 13633874.340482