261749481 (number)

261749481 is an odd 9-digits composite number following 261749480 and preceding 261749482. In scientific notation, it is written as 2.61749481 × 10^8. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 149571120 positive integers (up to 261749481) that are relatively prime to 261749481.

Interesting facts

Basic properties

Name

Name two hundred sixty-one million seven hundred forty-nine thousand four hundred eighty-one

Notation

Scientific notation 2.61749481 × 10^8
Engineering notation 2.61749481 × 10^6

Prime Factorization of 261749481

Prime Factorization 7 × 3 × 12464261

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 261749481
Product of the distinct prime numbers

The prime factorization of 261749481 is 7 × 3 × 12464261. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 9, 27, 74, 118, 497, 7316, 2369, 43627, 14398, 656960, 733065, 884653, 8365870, 6211715, 2244473, 453800702, 798687576, 5592218082, 6044754276

Basic calculations (n = 261749481)

Multiplication

n×y
n×2 523498962
n×3 785248443
n×4 1046997924
n×5 1308747405

Division

n÷y
n÷2 130874740.5
n÷3 87249827
n÷3 65437370.25
n÷5 52349896.2

Exponentiation

ny
n2 68512790803769361
n3 1.7933187434748E+25
n4 4.6940025037211E+33
n5 1.2286527191617E+42

Nth Root

y√n
2√n 16178.673647738
3√n 639.67877841895
4√n 127.19541519936
5√n 48.258871925265

Divisors of 261749481

1, 3, 7, 21, 12464261, 37392783, 87249827, 261749481

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 -261749480
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 261749481 can be divided by 8 positive divisors. The sum of these divisors (counting 261749481) is 1, the average is 0.125.

Base conversion 261749481

Base System Value
2 Binary 1111100110011111101011101001
3 Ternary 200020112020210020
4 Quaternary 33212133223221
5 Quinary 1014001440411
6 Senary 41550111053
8 Octal 1746375351
10 Decimal 261749481
12 Duodecimal 737ab489
16 Hexadecimal f99fae9
20 Vigesimal 41fide1
36 Base36 4bu76x

Cryptographic Hash Functions

md5 31536257b8e2ca77b959370751c6cdc1
sha1 2738f4d478e94ffc202681d15d76d2b63139c7fb
sha256 4300204072ee162384d996b6b26434adf187578c764bc26bc456f0f64ba69795
sha512 ee2f30b379d5f4d8767a32755476ae23b559186c1536daf37aef9dbc17f5ee7e02400f5dca211cc5b08a2b68e90cc4c64e748465cb037d0c8dcc187cf144b8c8
ripemd-160 fbd9106b69326a0274d47961d92fdd858f5fb903

261749481 as geometric shapes

Circle

Radius = n
Diameter 523498962
Circumference 1644620493.1811
Area 2.1523928026606E+17

Sphere

Radius = n
Volume 7.5118359867272E+25
Surface area 8.6095712106422E+17
Circumference 1644620493.1811

Square

Length = n
Perimeter 1046997924
Area 68512790803769361
Diagonal 370169665.97432

Cube

Length = n
Surface area 411076744822616166
Volume 1.7933187434748E+25
Space diagonal 453363399.94678

Equilateral Triangle

Length = n
Perimeter 785248443
Area 2.9666908660117E+16
Altitude 226681699.97339

Triangular Pyramid

Length = n
Surface area 2.9666908660117E+16
Volume 2.1134464072333E+24
Height 123389888.65811