28692721 (number)

28692721 is an odd 8-digits composite number following 28692720 and preceding 28692722. In scientific notation, it is written as 2.8692721 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 28329444 positive integers (up to 28692721) that are relatively prime to 28692721.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred ninety-two thousand seven hundred twenty-one

Notation

Scientific notation 2.8692721 × 10^7
Engineering notation 2.8692721 × 10^6

Prime Factorization of 28692721

Prime Factorization 79 × 363199

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28692721
Product of the distinct prime numbers

The prime factorization of 28692721 is 79 × 363199. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28692721)

Multiplication

n×y
n×2 57385442
n×3 86078163
n×4 114770884
n×5 143463605

Division

n÷y
n÷2 14346360.5
n÷3 9564240.3333333
n÷3 7173180.25
n÷5 5738544.2

Exponentiation

ny
n2 823272238383841
n3 2.3621920642993E+22
n4 6.7777717849354E+29
n5 1.9447271482682E+37

Nth Root

y√n
2√n 5356.5586900547
3√n 306.14270260338
4√n 73.188514741417
5√n 31.013754665708

Divisors of 28692721

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28692720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28692721 can be divided by 4 positive divisors. The sum of these divisors (counting 28692721) is 1, the average is 0.25.

Base conversion 28692721

Base System Value
2 Binary 1101101011101000011110001
3 Ternary 1222222202000101
4 Quaternary 1231131003301
5 Quinary 24321131341
6 Senary 2502552401
8 Octal 155350361
10 Decimal 28692721
12 Duodecimal 9738701
16 Hexadecimal 1b5d0f1
20 Vigesimal 8j6bg1
36 Base36 h2zg1

Cryptographic Hash Functions

md5 701ded208b227c5a4a233d27f8752f7a
sha1 174488396c6a334d43315369de0a86f88edd1ca9
sha256 0a6d216a25930d895cd8f09b50f047a3aa481c92611109fd6678f8ee0060c4a7
sha512 1542bbc7f77936aa7cd750e16966b3bb72b442ffe8689a70548a5d0fffe4a41d1ce077949abb2f5f36b87a7182eb2cd8550a0aa0c73cf8d08639fadb15044386
ripemd-160 d66ce106b0188be3cf4bbd331b668a6148d94a43

28692721 as geometric shapes

Circle

Radius = n
Diameter 57385442
Circumference 180281683.0102
Area 2.5863860160111E+15

Sphere

Radius = n
Volume 9.8947269807611E+22
Surface area 1.0345544064044E+16
Circumference 180281683.0102

Square

Length = n
Perimeter 114770884
Area 823272238383841
Diagonal 40577635.179587

Cube

Length = n
Surface area 4939633430303046
Volume 2.3621920642993E+22
Space diagonal 49697250.579398

Equilateral Triangle

Length = n
Perimeter 86078163
Area 3.5648733633544E+14
Altitude 24848625.289699

Triangular Pyramid

Length = n
Surface area 3.5648733633544E+14
Volume 2.7838700452185E+21
Height 13525878.393196