20687955 (number)

20687955 is an odd 8-digits composite number following 20687954 and preceding 20687956. In scientific notation, it is written as 2.0687955 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 10976000 positive integers (up to 20687955) that are relatively prime to 20687955.

Interesting facts

Basic properties

Name

Name twenty million six hundred eighty-seven thousand nine hundred fifty-five

Notation

Scientific notation 2.0687955 × 10^7
Engineering notation 2.0687955 × 10^6

Prime Factorization of 20687955

Prime Factorization 5 × 3 × 197 × 7001

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20687955
Product of the distinct prime numbers

The prime factorization of 20687955 is 5 × 3 × 197 × 7001. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 9, 66, 84, 421, 839, 484, 1644, 81172, 8082, 382357, 122286, 4802782, 8794501, 54193626, 39665250, 749703048, 303198234, 8060670994, 8555897625

Basic calculations (n = 20687955)

Multiplication

n×y
n×2 41375910
n×3 62063865
n×4 82751820
n×5 103439775

Division

n÷y
n÷2 10343977.5
n÷3 6895985
n÷3 5171988.75
n÷5 4137591

Exponentiation

ny
n2 427991482082025
n3 8.8542685216962E+21
n4 1.8317670873477E+29
n5 3.789551507353E+36

Nth Root

y√n
2√n 4548.4013675136
3√n 274.5190712726
4√n 67.441836922741
5√n 29.049824470715

Divisors of 20687955

1, 3, 5, 15, 197, 591, 985, 2955, 7001, 21003, 35005, 105015, 1379197, 4137591, 6895985, 20687955

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 -20687954
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 20687955 can be divided by 16 positive divisors. The sum of these divisors (counting 20687955) is 1, the average is 0.0625.

Base conversion 20687955

Base System Value
2 Binary 1001110111010110001010011
3 Ternary 1102221001112120
4 Quaternary 1032322301103
5 Quinary 20244003310
6 Senary 2015225323
8 Octal 116726123
10 Decimal 20687955
12 Duodecimal 6b18243
16 Hexadecimal 13bac53
20 Vigesimal 695jhf
36 Base36 cbexf

Cryptographic Hash Functions

md5 dc6ec100a891acc4380ab33e91e57c28
sha1 6acc317c60a733ed0230c7b0a2715064210095a2
sha256 33c6c53352bf92c47f2bdfd3209e81b726ee441faa7a653477f57d7d9f28ceb1
sha512 1828f3a291091c79141c742d014b13450d954f18f016a5bebace48f6f1fcaaff7b17ec3da46da979824b345fc06a6f92e275d84030f64b2c0f0c3e10a593be54
ripemd-160 9e614dcc862ad03073fdafd5f41a3a9464e1e011

20687955 as geometric shapes

Circle

Radius = n
Diameter 41375910
Circumference 129986254.89159
Area 1.3445748959079E+15

Sphere

Radius = n
Volume 3.708867325423E+22
Surface area 5.3782995836316E+15
Circumference 129986254.89159

Square

Length = n
Perimeter 82751820
Area 427991482082025
Diagonal 29257186.538764

Cube

Length = n
Surface area 2567948892492150
Volume 8.8542685216962E+21
Space diagonal 35832589.164699

Equilateral Triangle

Length = n
Perimeter 62063865
Area 1.8532574804319E+14
Altitude 17916294.582349

Triangular Pyramid

Length = n
Surface area 1.8532574804319E+14
Volume 1.0434855523563E+21
Height 9752395.5129214