261749243 (number)

261749243 is an odd 9-digits composite number following 261749242 and preceding 261749244. In scientific notation, it is written as 2.61749243 × 10^8. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 224356488 positive integers (up to 261749243) that are relatively prime to 261749243.

Interesting facts

Basic properties

Name

Name two hundred sixty-one million seven hundred forty-nine thousand two hundred forty-three

Notation

Scientific notation 2.61749243 × 10^8
Engineering notation 2.61749243 × 10^6

Prime Factorization of 261749243

Prime Factorization 7 × 37392749

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 261749243
Product of the distinct prime numbers

The prime factorization of 261749243 is 7 × 37392749. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 6, 44, 72, 286, 477, 5005, 4551, 87305, 54059, 757789, 545956, 9418761, 1181025, 55667584, 41334722, 418707314, 690939516, 2263977752, 5804149618

Basic calculations (n = 261749243)

Multiplication

n×y
n×2 523498486
n×3 785247729
n×4 1046996972
n×5 1308746215

Division

n÷y
n÷2 130874621.5
n÷3 87249747.666667
n÷3 65437310.75
n÷5 52349848.6

Exponentiation

ny
n2 68512666211073049
n3 1.793313851666E+25
n4 4.6939854313499E+33
n5 1.2286471333089E+42

Nth Root

y√n
2√n 16178.666292374
3√n 639.67858453942
4√n 127.19538628572
5√n 48.258863149228

Divisors of 261749243

1, 7, 37392749, 261749243

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 -261749242
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 261749243 can be divided by 4 positive divisors. The sum of these divisors (counting 261749243) is 1, the average is 0.25.

Base conversion 261749243

Base System Value
2 Binary 1111100110011111100111111011
3 Ternary 200020112020110102
4 Quaternary 33212133213323
5 Quinary 1014001433433
6 Senary 41550110015
8 Octal 1746374773
10 Decimal 261749243
12 Duodecimal 737ab30b
16 Hexadecimal f99f9fb
20 Vigesimal 41fid23
36 Base36 4bu70b

Cryptographic Hash Functions

md5 cbdbd25038d6fd2cd8908f41268389b0
sha1 475108e04f8636895a8fd667eaf06ad171ca49a2
sha256 7f3bc4d7836fa52eacb63b97421f64e2746b4706036fb6b0c1f7863b6919263d
sha512 33794dee462bebaa727f902d5555ff979998b64c6c7eab3aa3e2c9599409ad7ea46bcbe3c68601c5119a0be8005b23a891845209894892872a21a7e108150dc0
ripemd-160 34600db82f20ea36173b8c21c246eeb7e1b8c69a

261749243 as geometric shapes

Circle

Radius = n
Diameter 523498486
Circumference 1644618997.783
Area 2.1523888884656E+17

Sphere

Radius = n
Volume 7.5118154959663E+25
Surface area 8.6095555538623E+17
Circumference 1644618997.783

Square

Length = n
Perimeter 1046996972
Area 68512666211073049
Diagonal 370169329.39149

Cube

Length = n
Surface area 411075997266438294
Volume 1.793313851666E+25
Space diagonal 453362987.71869

Equilateral Triangle

Length = n
Perimeter 785247729
Area 2.9666854709896E+16
Altitude 226681493.85935

Triangular Pyramid

Length = n
Surface area 2.9666854709896E+16
Volume 2.1134406421813E+24
Height 123389776.46383