261728139 (number)

261728139 is an odd 9-digits composite number following 261728138 and preceding 261728140. In scientific notation, it is written as 2.61728139 × 10^8. The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors. There are 174485424 positive integers (up to 261728139) that are relatively prime to 261728139.

Interesting facts

Basic properties

Name

Name two hundred sixty-one million seven hundred twenty-eight thousand one hundred thirty-nine

Notation

Scientific notation 2.61728139 × 10^8
Engineering notation 2.61728139 × 10^6

Prime Factorization of 261728139

Prime Factorization 3 × 87242713

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 261728139
Product of the distinct prime numbers

The prime factorization of 261728139 is 3 × 87242713. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 4, 41, 3, 560, 139, 3669, 2917, 60517, 73891, 676504, 248158, 4378621, 414145, 91908075, 93210607, 631351680, 965287636, 9437854893, 1184086121

Basic calculations (n = 261728139)

Multiplication

n×y
n×2 523456278
n×3 785184417
n×4 1046912556
n×5 1308640695

Division

n÷y
n÷2 130864069.5
n÷3 87242713
n÷3 65432034.75
n÷5 52345627.8

Exponentiation

ny
n2 68501618744403321
n3 1.792880119246E+25
n4 4.6924717706036E+33
n5 1.2281519038301E+42

Nth Root

y√n
2√n 16178.014062301
3√n 639.66139233474
4√n 127.19282236943
5√n 48.258084932731

Divisors of 261728139

1, 3, 87242713, 261728139

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 -261728138
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 261728139 can be divided by 4 positive divisors. The sum of these divisors (counting 261728139) is 1, the average is 0.25.

Base conversion 261728139

Base System Value
2 Binary 1111100110011010011110001011
3 Ternary 200020111011111210
4 Quaternary 33212122132023
5 Quinary 1014000300024
6 Senary 41545424203
8 Octal 1746323613
10 Decimal 261728139
12 Duodecimal 7379b063
16 Hexadecimal f99a78b
20 Vigesimal 41fg06j
36 Base36 4btqq3

Cryptographic Hash Functions

md5 484d703b03dbba9c86a9f07fd217345f
sha1 2f4e7dd2a7be9d2237babe4b8d1ef73c421f055a
sha256 45fc5f3c578a8e1bcbb0873e22335a6561af6b60eac82064c5f5e512dd35c5d0
sha512 2474fb7e07088c4fb111292208c72a9af7fb6467744cdf90ab5eba1aed2b7ede55f5873e93e0f4435fc38aa383dfa4a17879424cb5b5855503cc84991c7a6482
ripemd-160 894aa1b5a0d0fffffef5d920fcf4e5958f1ce33c

261728139 as geometric shapes

Circle

Radius = n
Diameter 523456278
Circumference 1644486397.4403
Area 2.1520418220643E+17

Sphere

Radius = n
Volume 7.509998681854E+25
Surface area 8.6081672882571E+17
Circumference 1644486397.4403

Square

Length = n
Perimeter 1046912556
Area 68501618744403321
Diagonal 370139483.82847

Cube

Length = n
Surface area 411009712466419926
Volume 1.792880119246E+25
Space diagonal 453326434.51845

Equilateral Triangle

Length = n
Perimeter 785184417
Area 2.9662071016505E+16
Altitude 226663217.25922

Triangular Pyramid

Length = n
Surface area 2.9662071016505E+16
Volume 2.1129294836223E+24
Height 123379827.94282