18731028 (number)

18731028 is an even 8-digits composite number following 18731027 and preceding 18731029. In scientific notation, it is written as 1.8731028 × 10^7. The sum of its digits is 30. It has a total of 5 prime factors and 24 positive divisors. There are 6074784 positive integers (up to 18731028) that are relatively prime to 18731028.

Interesting facts

Basic properties

Name

Name eighteen million seven hundred thirty-one thousand twenty-eight

Notation

Scientific notation 1.8731028 × 10^7
Engineering notation 1.8731028 × 10^6

Prime Factorization of 18731028

Prime Factorization 2 × 2 × 3 × 37 × 42187

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 9365514
Product of the distinct prime numbers

The prime factorization of 18731028 is 2 × 2 × 3 × 37 × 42187. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 8, 35, 86, 989, 103, 3714, 7345, 81332, 87752, 229355, 809934, 3824087, 9659294, 2487477, 85196667, 841690166, 670818845, 8293222111, 4131620854

Basic calculations (n = 18731028)

Multiplication

n×y
n×2 37462056
n×3 56193084
n×4 74924112
n×5 93655140

Division

n÷y
n÷2 9365514
n÷3 6243676
n÷3 4682757
n÷5 3746205.6

Exponentiation

ny
n2 350851409936784
n3 6.5718075833654E+21
n4 1.2309671185463E+29
n5 2.305727956457E+36

Nth Root

y√n
2√n 4327.9357666213
3√n 265.57500868667
4√n 65.787048623732
5√n 28.478186026484

Divisors of 18731028

1, 2, 3, 4, 6, 12, 37, 74, 111, 148, 222, 444, 42187, 84374, 126561, 168748, 253122, 506244, 1560919, 3121838, 4682757, 6243676, 9365514, 18731028

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18731027
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18731028 can be divided by 24 positive divisors. The sum of these divisors (counting 18731028) is 1, the average is 0.041666666666667.

Base conversion 18731028

Base System Value
2 Binary 1000111011101000000010100
3 Ternary 1022020122010210
4 Quaternary 1013131000110
5 Quinary 14243343103
6 Senary 1505245420
8 Octal 107350024
10 Decimal 18731028
12 Duodecimal 6333870
16 Hexadecimal 11dd014
20 Vigesimal 5h17b8
36 Base36 b5gyc

Cryptographic Hash Functions

md5 6a2b5487add06968a235e5a566fa5e36
sha1 721b9b372e46566f14a9f7dfd1d5c03ba364e98a
sha256 e3f908e0cd5e2b67434dc78b3f8bad80a62cc3b0ef3ebcdd759f9868fda8a7d5
sha512 c6120631aa9c1fbde008a3cce345697cfeb7f93a56147275c5f2499ec3bf6d07fb8ec88329401463ab6c5e6f13b7e31762a8227b376f9a0f970442f229d3bb60
ripemd-160 09c12eb00fe8bcf2253c35684bb34c2abfeb2003

18731028 as geometric shapes

Circle

Radius = n
Diameter 37462056
Circumference 117690519.91797
Area 1.102232211959E+15

Sphere

Radius = n
Volume 2.7527923232942E+22
Surface area 4.4089288478361E+15
Circumference 117690519.91797

Square

Length = n
Perimeter 74924112
Area 350851409936784
Diagonal 26489673.83479

Cube

Length = n
Surface area 2105108459620704
Volume 6.5718075833654E+21
Space diagonal 32443092.173995

Equilateral Triangle

Length = n
Perimeter 56193084
Area 1.5192311697942E+14
Altitude 16221546.086998

Triangular Pyramid

Length = n
Surface area 1.5192311697942E+14
Volume 7.7449495114181E+20
Height 8829891.2782634