261749388 (number)

261749388 is an even 9-digits composite number following 261749387 and preceding 261749389. In scientific notation, it is written as 2.61749388 × 10^8. The sum of its digits is 48. It has a total of 4 prime factors and 12 positive divisors. There are 87249792 positive integers (up to 261749388) that are relatively prime to 261749388.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.61749388 × 10^8
Engineering notation 2.61749388 × 10^6

Prime Factorization of 261749388

Prime Factorization 2 × 2 × 3 × 21812449

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 130874694
Product of the distinct prime numbers

The prime factorization of 261749388 is 2 × 2 × 3 × 21812449. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 2, 99, 53, 227, 446, 7460, 3425, 91336, 77697, 721156, 676520, 5442048, 4018440, 58672665, 28148916, 895941239, 145705472, 381184015, 1663611361

Basic calculations (n = 261749388)

Multiplication

n×y
n×2 523498776
n×3 785248164
n×4 1046997552
n×5 1308746940

Division

n÷y
n÷2 130874694
n÷3 87249796
n÷3 65437347
n÷5 52349877.6

Exponentiation

ny
n2 68512742118374544
n3 1.7933168319686E+25
n4 4.6939958325789E+33
n5 1.2286505364521E+42

Nth Root

y√n
2√n 16178.670773583
3√n 639.67870265931
4√n 127.19540390118
5√n 48.258868495974

Divisors of 261749388

1, 2, 3, 4, 6, 12, 21812449, 43624898, 65437347, 87249796, 130874694, 261749388

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -261749387
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 261749388 can be divided by 12 positive divisors. The sum of these divisors (counting 261749388) is 1, the average is 0.083333333333333.

Base conversion 261749388

Base System Value
2 Binary 1111100110011111101010001100
3 Ternary 200020112020122210
4 Quaternary 33212133222030
5 Quinary 1014001440023
6 Senary 41550110420
8 Octal 1746375214
10 Decimal 261749388
12 Duodecimal 737ab410
16 Hexadecimal f99fa8c
20 Vigesimal 41fid98
36 Base36 4bu74c

Cryptographic Hash Functions

md5 fcb83148c03925ff20e6e542493b8dc7
sha1 9c72a098e84a617bffca97a1d7aa9469261295da
sha256 a3759c790ffc7f7adb376708806eb9b0ed7515bb59a74bbacfda3b5da0330a42
sha512 ec639aff4f797cb436ceb932dd129eba70212bb5e4037facc25b9d0022fdcb40829937bb44dc3785bd6343861622379964ce157a4f3db404a8b2e956b5c903c3
ripemd-160 43b0e9f77e76dc6d8e80579474e6974c30d1ee5f

261749388 as geometric shapes

Circle

Radius = n
Diameter 523498776
Circumference 1644619908.8448
Area 2.1523912731638E+17

Sphere

Radius = n
Volume 7.5118279798288E+25
Surface area 8.6095650926551E+17
Circumference 1644619908.8448

Square

Length = n
Perimeter 1046997552
Area 68512742118374544
Diagonal 370169534.45246

Cube

Length = n
Surface area 411076452710247264
Volume 1.7933168319686E+25
Space diagonal 453363238.86606

Equilateral Triangle

Length = n
Perimeter 785248164
Area 2.9666887578722E+16
Altitude 226681619.43303

Triangular Pyramid

Length = n
Surface area 2.9666887578722E+16
Volume 2.1134441545017E+24
Height 123389844.81749