261749661 (number)

261749661 is an odd 9-digits composite number following 261749660 and preceding 261749662. In scientific notation, it is written as 2.61749661 × 10^8. The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors. There are 174499772 positive integers (up to 261749661) that are relatively prime to 261749661.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.61749661 × 10^8
Engineering notation 2.61749661 × 10^6

Prime Factorization of 261749661

Prime Factorization 3 × 87249887

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 261749661
Product of the distinct prime numbers

The prime factorization of 261749661 is 3 × 87249887. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 7, 92, 93, 27, 599, 3316, 3933, 48310, 31449, 792575, 336483, 3908657, 901611, 22532283, 25678129, 15675422, 189392293, 8090135779, 6563733991

Basic calculations (n = 261749661)

Multiplication

n×y
n×2 523499322
n×3 785248983
n×4 1046998644
n×5 1308748305

Division

n÷y
n÷2 130874830.5
n÷3 87249887
n÷3 65437415.25
n÷5 52349932.2

Exponentiation

ny
n2 68512885033614921
n3 1.7933224431681E+25
n4 4.6940154156293E+33
n5 1.2286569437698E+42

Nth Root

y√n
2√n 16178.679210615
3√n 639.67892505044
4√n 127.1954370668
5√n 48.2588785626

Divisors of 261749661

1, 3, 87249887, 261749661

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 -261749660
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 261749661 can be divided by 4 positive divisors. The sum of these divisors (counting 261749661) is 1, the average is 0.25.

Base conversion 261749661

Base System Value
2 Binary 1111100110011111101110011101
3 Ternary 200020112021000220
4 Quaternary 33212133232131
5 Quinary 1014001442121
6 Senary 41550111553
8 Octal 1746375635
10 Decimal 261749661
12 Duodecimal 737ab5b9
16 Hexadecimal f99fb9d
20 Vigesimal 41fie31
36 Base36 4bu7bx

Cryptographic Hash Functions

md5 0d2c9ab140f8d5925b68bbb0b38dae35
sha1 6490273a4f54eb4eb2c390de29bbbc0011661aec
sha256 1b8adea6b95ff7afa40c58c186113752b69e4c6196a91c568c8e5d61ea1d0caa
sha512 54592d46bf4c1e780a6a034af6f1386b0bbedc085be6b5db51946419df578931125ca8c9f2345b91cdea7366dbc6e0733cf3d0c7d1f99dfd931d05cc0ec303d9
ripemd-160 8be6fdc93bc554687460e3569e65702c2e0dabb0

261749661 as geometric shapes

Circle

Radius = n
Diameter 523499322
Circumference 1644621624.1544
Area 2.1523957629785E+17

Sphere

Radius = n
Volume 7.511851483966E+25
Surface area 8.6095830519139E+17
Circumference 1644621624.1544

Square

Length = n
Perimeter 1046998644
Area 68512885033614921
Diagonal 370169920.53276

Cube

Length = n
Surface area 411077310201689526
Volume 1.7933224431681E+25
Space diagonal 453363711.71593

Equilateral Triangle

Length = n
Perimeter 785248983
Area 2.9666949462837E+16
Altitude 226681855.85796

Triangular Pyramid

Length = n
Surface area 2.9666949462837E+16
Volume 2.1134507673636E+24
Height 123389973.51092