20205987 (number)

20205987 is an odd 8-digits composite number following 20205986 and preceding 20205988. In scientific notation, it is written as 2.0205987 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 12638592 positive integers (up to 20205987) that are relatively prime to 20205987.

Interesting facts

Basic properties

Name

Name twenty million two hundred five thousand nine hundred eighty-seven

Notation

Scientific notation 2.0205987 × 10^7
Engineering notation 2.0205987 × 10^6

Prime Factorization of 20205987

Prime Factorization 3 × 107 × 19 × 3313

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20205987
Product of the distinct prime numbers

The prime factorization of 20205987 is 3 × 107 × 19 × 3313. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 1, 5, 34, 648, 168, 2700, 3177, 24307, 18158, 666173, 427386, 4019479, 3913864, 94411620, 47735393, 612541683, 145782215, 2477460376, 4944286695

Basic calculations (n = 20205987)

Multiplication

n×y
n×2 40411974
n×3 60617961
n×4 80823948
n×5 101029935

Division

n÷y
n÷2 10102993.5
n÷3 6735329
n÷3 5051496.75
n÷5 4041197.4

Exponentiation

ny
n2 408281910644169
n3 8.2497389788112E+21
n4 1.6669411855925E+29
n5 3.3682191925847E+36

Nth Root

y√n
2√n 4495.1070065127
3√n 272.37047178529
4√n 67.045559185622
5√n 28.91319024681

Divisors of 20205987

1, 3, 19, 57, 107, 321, 2033, 3313, 6099, 9939, 62947, 188841, 354491, 1063473, 6735329, 20205987

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20205986
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20205987 can be divided by 16 positive divisors. The sum of these divisors (counting 20205987) is 1, the average is 0.0625.

Base conversion 20205987

Base System Value
2 Binary 1001101000101000110100011
3 Ternary 1102000120101220
4 Quaternary 1031011012203
5 Quinary 20133042422
6 Senary 2001030123
8 Octal 115050643
10 Decimal 20205987
12 Duodecimal 6925343
16 Hexadecimal 13451a3
20 Vigesimal 665ej7
36 Base36 c131f

Cryptographic Hash Functions

md5 e1e6d260723be2e9453450ef260f679d
sha1 0fc0a834c58c7c81abe6209420f16ce6401d4837
sha256 0467ef3ac0d6f06a7bfcad2b2b8f1a0ee95c98855cc3229c29e2ced1844b2a63
sha512 cb8c2f0510446fcf85dea8ecb5cd18bd64dbc4ef4e34562db399e60e57592b94a3fbbfbbb2e3afc22ebd7cf2d3b886ddcd7cb6e21d1f38805af428b7c2217219
ripemd-160 1c1cdbb947d75669a12c741ac063d9b5e57d9c4b

20205987 as geometric shapes

Circle

Radius = n
Diameter 40411974
Circumference 126957960.63546
Area 1.2826554510733E+15

Sphere

Radius = n
Volume 3.4556425826489E+22
Surface area 5.1306218042933E+15
Circumference 126957960.63546

Square

Length = n
Perimeter 80823948
Area 408281910644169
Diagonal 28575580.856534

Cube

Length = n
Surface area 2449691463865014
Volume 8.2497389788112E+21
Space diagonal 34997796.101076

Equilateral Triangle

Length = n
Perimeter 60617961
Area 1.7679125326175E+14
Altitude 17498898.050538

Triangular Pyramid

Length = n
Surface area 1.7679125326175E+14
Volume 9.722410624894E+20
Height 9525193.6188448