28661649 (number)

28661649 is an odd 8-digits composite number following 28661648 and preceding 28661650. In scientific notation, it is written as 2.8661649 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 18892896 positive integers (up to 28661649) that are relatively prime to 28661649.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred sixty-one thousand six hundred forty-nine

Notation

Scientific notation 2.8661649 × 10^7
Engineering notation 2.8661649 × 10^6

Prime Factorization of 28661649

Prime Factorization 3 × 89 × 107347

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28661649
Product of the distinct prime numbers

The prime factorization of 28661649 is 3 × 89 × 107347. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28661649)

Multiplication

n×y
n×2 57323298
n×3 85984947
n×4 114646596
n×5 143308245

Division

n÷y
n÷2 14330824.5
n÷3 9553883
n÷3 7165412.25
n÷5 5732329.8

Exponentiation

ny
n2 821490123399201
n3 2.3545261573835E+22
n4 6.7484602284243E+29
n5 1.9342199835756E+37

Nth Root

y√n
2√n 5353.6575348074
3√n 306.03215305695
4√n 73.168692313088
5√n 31.007034654149

Divisors of 28661649

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28661648
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28661649 can be divided by 8 positive divisors. The sum of these divisors (counting 28661649) is 1, the average is 0.125.

Base conversion 28661649

Base System Value
2 Binary 1101101010101011110010001
3 Ternary 1222221011101120
4 Quaternary 1231111132101
5 Quinary 24314133044
6 Senary 2502152453
8 Octal 155253621
10 Decimal 28661649
12 Duodecimal 9722729
16 Hexadecimal 1b55791
20 Vigesimal 8j2e29
36 Base36 h2bgx

Cryptographic Hash Functions

md5 a23191e1762d45075d9eed80abd8acd3
sha1 d54b4907edcddda53f17a1d11eb121cff8b37024
sha256 68dc6f6cb54500720ac3483f78d328a1e45f18b870d56fbd66e4a1fbc2769958
sha512 60cfc0d2cf6f39633996fe1ce9906690ceabf2518aa3d895de486e365871b26f3b6e77a18dfb676203d696547915720952246f8ac2ffab868699d8981f6b1d96
ripemd-160 acfbd6dd4b4b9bf89e94fd92f666b7e50940334c

28661649 as geometric shapes

Circle

Radius = n
Diameter 57323298
Circumference 180086451.87634
Area 2.5807873366675E+15

Sphere

Radius = n
Volume 9.8626161049612E+22
Surface area 1.032314934667E+16
Circumference 180086451.87634

Square

Length = n
Perimeter 114646596
Area 821490123399201
Diagonal 40533692.735777

Cube

Length = n
Surface area 4928940740395206
Volume 2.3545261573835E+22
Space diagonal 49643432.296706

Equilateral Triangle

Length = n
Perimeter 85984947
Area 3.5571565791086E+14
Altitude 24821716.148353

Triangular Pyramid

Length = n
Surface area 3.5571565791086E+14
Volume 2.7748356872782E+21
Height 13511230.911926