247989 (number)

247989 is an odd 6-digits composite number following 247988 and preceding 247990. In scientific notation, it is written as 2.47989 × 10^5. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 141120 positive integers (up to 247989) that are relatively prime to 247989.

Interesting facts

Basic properties

Name

Name two hundred forty-seven thousand nine hundred eighty-nine

Notation

Scientific notation 2.47989 × 10^5
Engineering notation 2.47989 × 10^3

Prime Factorization of 247989

Prime Factorization 147 × 7 × 241

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 247989
Product of the distinct prime numbers

The prime factorization of 247989 is 147 × 7 × 241. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 247989)

Multiplication

n×y
n×2 495978
n×3 743967
n×4 991956
n×5 1239945

Division

n÷y
n÷2 123994.5
n÷3 82663
n÷3 61997.25
n÷5 49597.8

Exponentiation

ny
n2 61498544121
n3 15250962458022669
n4 3.7820709290026E+21
n5 9.3791198761242E+26

Nth Root

y√n
2√n 497.98493953131
3√n 62.826684131213
4√n 22.315576164001
5√n 11.99185817223

Divisors of 247989

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 -247988
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 247989 can be divided by 8 positive divisors. The sum of these divisors (counting 247989) is 1, the average is 0.125.

Base conversion 247989

Base System Value
2 Binary 111100100010110101
3 Ternary 110121011210
4 Quaternary 330202311
5 Quinary 30413424
6 Senary 5152033
8 Octal 744265
10 Decimal 247989
12 Duodecimal bb619
16 Hexadecimal 3c8b5
20 Vigesimal 1ajj9
36 Base36 5bcl

Cryptographic Hash Functions

md5 b5604895550813e9035bf9f07c158c2b
sha1 0ac56226e6f7af175083e54f32770fa0e1fcfa5e
sha256 21ebcd68f5e2c13ebe4d30de001d4ac076b8446c3c24b1049f73c10e594f5662
sha512 cae232303f346e46d66f8babcb893a664e3fbf046367d51645631df48bd8a2b73589e0354c9be7fd36164c6a525689ea2f1c6ea2a190a2a47af9e6c9b6d4eb17
ripemd-160 9925cf8775923424255e586a78415b2569216c75

247989 as geometric shapes

Circle

Radius = n
Diameter 495978
Circumference 1558160.8411422
Area 193203374417

Sphere

Radius = n
Volume 6.388308215773E+16
Surface area 772813497668.01
Circumference 1558160.8411422

Square

Length = n
Perimeter 991956
Area 61498544121
Diagonal 350709.40711934

Cube

Length = n
Surface area 368991264726
Volume 15250962458022669
Space diagonal 429529.5477182

Equilateral Triangle

Length = n
Perimeter 743967
Area 26629650752.272
Altitude 214764.7738591

Triangular Pyramid

Length = n
Surface area 26629650752.272
Volume 1.7973431622815E+15
Height 116903.13570645