261749385 (number)

261749385 is an odd 9-digits composite number following 261749384 and preceding 261749386. In scientific notation, it is written as 2.61749385 × 10^8. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 136352160 positive integers (up to 261749385) that are relatively prime to 261749385.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.61749385 × 10^8
Engineering notation 2.61749385 × 10^6

Prime Factorization of 261749385

Prime Factorization 5 × 9 × 43 × 135271

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 261749385
Product of the distinct prime numbers

The prime factorization of 261749385 is 5 × 9 × 43 × 135271. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 7, 76, 6, 144, 619, 9251, 4800, 93071, 19591, 406673, 791353, 9868194, 3524664, 81815811, 14102491, 356972602, 894876387, 3381131311, 880562449

Basic calculations (n = 261749385)

Multiplication

n×y
n×2 523498770
n×3 785248155
n×4 1046997540
n×5 1308746925

Division

n÷y
n÷2 130874692.5
n÷3 87249795
n÷3 65437346.25
n÷5 52349877

Exponentiation

ny
n2 68512740547878225
n3 1.7933167703072E+25
n4 4.6939956173809E+33
n5 1.2286504660421E+42

Nth Root

y√n
2√n 16178.670680869
3√n 639.67870021545
4√n 127.19540353672
5√n 48.258868385352

Divisors of 261749385

1, 5, 9, 43, 45, 215, 387, 1935, 135271, 676355, 1217439, 5816653, 6087195, 29083265, 52349877, 261749385

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -261749384
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 261749385 can be divided by 16 positive divisors. The sum of these divisors (counting 261749385) is 1, the average is 0.0625.

Base conversion 261749385

Base System Value
2 Binary 1111100110011111101010001001
3 Ternary 200020112020122200
4 Quaternary 33212133222021
5 Quinary 1014001440020
6 Senary 41550110413
8 Octal 1746375211
10 Decimal 261749385
12 Duodecimal 737ab409
16 Hexadecimal f99fa89
20 Vigesimal 41fid95
36 Base36 4bu749

Cryptographic Hash Functions

md5 cf8d992a804795042669845978a182dc
sha1 01e512143fd2759c56d30b404fe5288c27320226
sha256 257cc28875b11842c90988443e4215a72363719cf9fcc9923cb869cc86b54f57
sha512 51df57e8c1a78d6cc94e0b872dabb88df9d7280514c2c3d3a11876a2a3ec427f3bc68e85ae62a81708e2495238560e390f34e16131e460d52228a77d2433e317
ripemd-160 055cdc4772b2ad271c74002d2ee8e8d6967c841c

261749385 as geometric shapes

Circle

Radius = n
Diameter 523498770
Circumference 1644619889.9953
Area 2.1523912238252E+17

Sphere

Radius = n
Volume 7.5118277215418E+25
Surface area 8.6095648953007E+17
Circumference 1644619889.9953

Square

Length = n
Perimeter 1046997540
Area 68512740547878225
Diagonal 370169530.20982

Cube

Length = n
Surface area 411076443287269350
Volume 1.7933167703072E+25
Space diagonal 453363233.66991

Equilateral Triangle

Length = n
Perimeter 785248155
Area 2.9666886898677E+16
Altitude 226681616.83495

Triangular Pyramid

Length = n
Surface area 2.9666886898677E+16
Volume 2.1134440818329E+24
Height 123389843.40327