268640981 (number)

268640981 is an odd 9-digits composite number following 268640980 and preceding 268640982. In scientific notation, it is written as 2.68640981 × 10^8. The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors. There are 218143800 positive integers (up to 268640981) that are relatively prime to 268640981.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.68640981 × 10^8
Engineering notation 2.68640981 × 10^6

Prime Factorization of 268640981

Prime Factorization 19 × 49 × 288551

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 268640981
Product of the distinct prime numbers

The prime factorization of 268640981 is 19 × 49 × 288551. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 9, 31, 65, 474, 429, 2780, 826, 41778, 78810, 559283, 138367, 983347, 1751443, 25509660, 6344553, 251575472, 217817277, 4736433411, 8575430316

Basic calculations (n = 268640981)

Multiplication

n×y
n×2 537281962
n×3 805922943
n×4 1074563924
n×5 1343204905

Division

n÷y
n÷2 134320490.5
n÷3 89546993.666667
n÷3 67160245.25
n÷5 53728196.2

Exponentiation

ny
n2 72167976672642361
n3 1.9387276050124E+25
n4 5.2082168570231E+33
n5 1.3991404857314E+42

Nth Root

y√n
2√n 16390.270925156
3√n 645.2441685188
4√n 128.02449345791
5√n 48.510355014248

Divisors of 268640981

1, 19, 49, 931, 288551, 5482469, 14138999, 268640981

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 -268640980
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 268640981 can be divided by 8 positive divisors. The sum of these divisors (counting 268640981) is 1, the average is 0.125.

Base conversion 268640981

Base System Value
2 Binary 10000000000110010001011010101
3 Ternary 200201111101010222
4 Quaternary 100000302023111
5 Quinary 1022233002411
6 Senary 42353524125
8 Octal 2000621325
10 Decimal 268640981
12 Duodecimal 75b73645
16 Hexadecimal 100322d5
20 Vigesimal 43j0291
36 Base36 4fxwph

Cryptographic Hash Functions

md5 f97e04c98d151436681ac26e825ae845
sha1 0de8774ba13a3a6f260aa40804b933b4d6fee572
sha256 c4826e0382229608dc90b8478cb5bb771e13512575de3db8a0d96b1e6d732f3d
sha512 e85aaee7dfc8857d344cee2ec14de687ca3ac1f600cccd46bce3a5f2d98855819f4cbb86fe728766e14c91b658dd07ed5ae3992e40393c8eddf4c8f621f12287
ripemd-160 750c1cd68074a12775f4666ce91499b212cf4e63

268640981 as geometric shapes

Circle

Radius = n
Diameter 537281962
Circumference 1687921064.7255
Area 2.2672238533921E+17

Sphere

Radius = n
Volume 8.1209232016248E+25
Surface area 9.0688954135685E+17
Circumference 1687921064.7255

Square

Length = n
Perimeter 1074563924
Area 72167976672642361
Diagonal 379915718.73941

Cube

Length = n
Surface area 433007860035854166
Volume 1.9387276050124E+25
Space diagonal 465299828.08715

Equilateral Triangle

Length = n
Perimeter 805922943
Area 3.1249650569116E+16
Altitude 232649914.04357

Triangular Pyramid

Length = n
Surface area 3.1249650569116E+16
Volume 2.284812393963E+24
Height 126638572.91314