287942738 (number)

287942738 is an even 9-digits composite number following 287942737 and preceding 287942739. In scientific notation, it is written as 2.87942738 × 10^8. The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors. There are 143718660 positive integers (up to 287942738) that are relatively prime to 287942738.

Interesting facts

Basic properties

Name

Name two hundred eighty-seven million nine hundred forty-two thousand seven hundred thirty-eight

Notation

Scientific notation 2.87942738 × 10^8
Engineering notation 2.87942738 × 10^6

Prime Factorization of 287942738

Prime Factorization 2 × 571 × 252139

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 287942738
Product of the distinct prime numbers

The prime factorization of 287942738 is 2 × 571 × 252139. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 1, 41, 88, 721, 950, 3354, 6649, 34480, 19002, 799215, 852318, 7803578, 7660551, 7619033, 30654449, 768100448, 402246374, 3642402478, 7548006725

Basic calculations (n = 287942738)

Multiplication

n×y
n×2 575885476
n×3 863828214
n×4 1151770952
n×5 1439713690

Division

n÷y
n÷2 143971369
n÷3 95980912.666667
n÷3 71985684.5
n÷5 57588547.6

Exponentiation

ny
n2 82911020366936644
n3 2.387362621483E+25
n4 6.8742372982866E+33
n5 1.9793867093304E+42

Nth Root

y√n
2√n 16968.875566755
3√n 660.34167952649
4√n 130.26463666995
5√n 49.188233499844

Divisors of 287942738

1, 2, 571, 1142, 252139, 504278, 143971369, 287942738

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 -287942737
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 287942738 can be divided by 8 positive divisors. The sum of these divisors (counting 287942738) is 1, the average is 0.125.

Base conversion 287942738

Base System Value
2 Binary 10001001010011010100001010010
3 Ternary 202001211000011212
4 Quaternary 101022122201102
5 Quinary 1042203131423
6 Senary 44323340122
8 Octal 2112324122
10 Decimal 287942738
12 Duodecimal 80521642
16 Hexadecimal 1129a852
20 Vigesimal 49jcggi
36 Base36 4rfm1e

Cryptographic Hash Functions

md5 61f675b695092597cf6bbe4502ab4093
sha1 08b641fce2ba0a52fd4a2eaff6119265571996c7
sha256 5dbcb63fd88d9e957251acd0c9ac7b1093b30a4162fc859660da58dfccd3c434
sha512 dddae57bb000aba30127333f814979ea63d1bcee0339b12831bf0dc408aa8ee4a0419db54288123699bf8496d40150af0dbd14604c7edc2e56e68c9fd80bec4a
ripemd-160 822bf52786cf36c48f9cd63633252557a99cd9d3

287942738 as geometric shapes

Circle

Radius = n
Diameter 575885476
Circumference 1809197580.7107
Area 2.604726524864E+17

Sphere

Radius = n
Volume 1.0000161164141E+26
Surface area 1.0418906099456E+18
Circumference 1809197580.7107

Square

Length = n
Perimeter 1151770952
Area 82911020366936644
Diagonal 407212525.26644

Cube

Length = n
Surface area 497466122201619864
Volume 2.387362621483E+25
Space diagonal 498731451.88649

Equilateral Triangle

Length = n
Perimeter 863828214
Area 3.5901524945728E+16
Altitude 249365725.94325

Triangular Pyramid

Length = n
Surface area 3.5901524945728E+16
Volume 2.8135338313365E+24
Height 135737508.42215