20686988 (number)

20686988 is an even 8-digits composite number following 20686987 and preceding 20686989. In scientific notation, it is written as 2.0686988 × 10^7. The sum of its digits is 47. It has a total of 5 prime factors and 24 positive divisors. There are 8845200 positive integers (up to 20686988) that are relatively prime to 20686988.

Interesting facts

Basic properties

Name

Name twenty million six hundred eighty-six thousand nine hundred eighty-eight

Notation

Scientific notation 2.0686988 × 10^7
Engineering notation 2.0686988 × 10^6

Prime Factorization of 20686988

Prime Factorization 2 × 2 × 7 × 911 × 811

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10343494
Product of the distinct prime numbers

The prime factorization of 20686988 is 2 × 2 × 7 × 911 × 811. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 10, 39, 92, 879, 616, 9768, 3534, 66524, 66206, 33539, 492552, 1531971, 6279586, 89407064, 86990363, 332201832, 559303286, 348167213, 2077756287

Basic calculations (n = 20686988)

Multiplication

n×y
n×2 41373976
n×3 62060964
n×4 82747952
n×5 103434940

Division

n÷y
n÷2 10343494
n÷3 6895662.6666667
n÷3 5171747
n÷5 4137397.6

Exponentiation

ny
n2 427951472512144
n3 8.8530269764411E+21
n4 1.8314246282531E+29
n5 3.7886659307577E+36

Nth Root

y√n
2√n 4548.2950651865
3√n 274.51479399986
4√n 67.441048814402
5√n 29.049552895245

Divisors of 20686988

1, 2, 4, 7, 14, 28, 811, 911, 1622, 1822, 3244, 3644, 5677, 6377, 11354, 12754, 22708, 25508, 738821, 1477642, 2955284, 5171747, 10343494, 20686988

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 -20686987
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 20686988 can be divided by 24 positive divisors. The sum of these divisors (counting 20686988) is 1, the average is 0.041666666666667.

Base conversion 20686988

Base System Value
2 Binary 1001110111010100010001100
3 Ternary 1102221000012202
4 Quaternary 1032322202030
5 Quinary 20243440423
6 Senary 2015221032
8 Octal 116724214
10 Decimal 20686988
12 Duodecimal 6b17778
16 Hexadecimal 13ba88c
20 Vigesimal 695h98
36 Base36 cbe6k

Cryptographic Hash Functions

md5 55ca4673a474772286fa5d7672dda81d
sha1 f7ed285e51711290e1db79d249dd8bcb3d81d0b3
sha256 5f60dd5693a6f43c3aa64a944276d195f5a2f20bbb1bdae9b9720536e0445fef
sha512 94eea33ca8ba29657a015335d97170dcd5f316cef2ea5ea93d4f73b28d2b89642ad8f8476166b1ba8807e79a4e3dd0d7c5786c4f3724bb209cb50832eb162f32
ripemd-160 1bd8cbdba8688286bf043daf0adf13f792304142

20686988 as geometric shapes

Circle

Radius = n
Diameter 41373976
Circumference 129980179.0514
Area 1.3444492021371E+15

Sphere

Radius = n
Volume 3.7083472681626E+22
Surface area 5.3777968085483E+15
Circumference 129980179.0514

Square

Length = n
Perimeter 82747952
Area 427951472512144
Diagonal 29255818.994249

Cube

Length = n
Surface area 2567708835072864
Volume 8.8530269764411E+21
Space diagonal 35830914.271568

Equilateral Triangle

Length = n
Perimeter 62060964
Area 1.8530842339124E+14
Altitude 17915457.135784

Triangular Pyramid

Length = n
Surface area 1.8530842339124E+14
Volume 1.0433392348448E+21
Height 9751939.6647498