20115985 (number)

20115985 is an odd 8-digits composite number following 20115984 and preceding 20115986. In scientific notation, it is written as 2.0115985 × 10^7. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 15995760 positive integers (up to 20115985) that are relatively prime to 20115985.

Interesting facts

Basic properties

Name

Name twenty million one hundred fifteen thousand nine hundred eighty-five

Notation

Scientific notation 2.0115985 × 10^7
Engineering notation 2.0115985 × 10^6

Prime Factorization of 20115985

Prime Factorization 5 × 167 × 24091

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20115985
Product of the distinct prime numbers

The prime factorization of 20115985 is 5 × 167 × 24091. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 10, 54, 77, 713, 64, 2950, 7741, 86360, 92039, 111264, 924321, 465039, 8795357, 62426674, 58592967, 575244273, 405492331, 7975954704, 8879490676

Basic calculations (n = 20115985)

Multiplication

n×y
n×2 40231970
n×3 60347955
n×4 80463940
n×5 100579925

Division

n÷y
n÷2 10057992.5
n÷3 6705328.3333333
n÷3 5028996.25
n÷5 4023197

Exponentiation

ny
n2 404652852520225
n3 8.1399907115041E+21
n4 1.6374393105275E+29
n5 3.2938704608983E+36

Nth Root

y√n
2√n 4485.0847260671
3√n 271.9654701337
4√n 66.970775164
5√n 28.887387065095

Divisors of 20115985

1, 5, 167, 835, 24091, 120455, 4023197, 20115985

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 -20115984
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 20115985 can be divided by 8 positive divisors. The sum of these divisors (counting 20115985) is 1, the average is 0.125.

Base conversion 20115985

Base System Value
2 Binary 1001100101111001000010001
3 Ternary 1101211222221111
4 Quaternary 1030233020101
5 Quinary 20122202420
6 Senary 1555053321
8 Octal 114571021
10 Decimal 20115985
12 Duodecimal 68a1241
16 Hexadecimal 132f211
20 Vigesimal 65e9j5
36 Base36 bz5ld

Cryptographic Hash Functions

md5 02f601323134158bfa3d03e412bba2bf
sha1 206fb114335ede30986a98ba3e969e74336b7efc
sha256 71b2eb69f2bc6cfa69aa21da2ffda668a58a851f6b0ce99b0d85255baf073c57
sha512 c3b3d4fea648fd333a9a64f8b89bc9a0846b95a90475bc914178aa506b57c838d4a8451e2b765982a084ab0bf951b5553ad4fcf8a00c0fdfb35fb85050716de7
ripemd-160 21f586b056959d814c5b0f1b061c2a9ca684aa7c

20115985 as geometric shapes

Circle

Radius = n
Diameter 40231970
Circumference 126392461.39144
Area 1.2712544287317E+15

Sphere

Radius = n
Volume 3.40967133594E+22
Surface area 5.0850177149268E+15
Circumference 126392461.39144

Square

Length = n
Perimeter 80463940
Area 404652852520225
Diagonal 28448298.807494

Cube

Length = n
Surface area 2427917115121350
Volume 8.1399907115041E+21
Space diagonal 34841908.064293

Equilateral Triangle

Length = n
Perimeter 60347955
Area 1.7521982499818E+14
Altitude 17420954.032147

Triangular Pyramid

Length = n
Surface area 1.7521982499818E+14
Volume 9.5930710515001E+20
Height 9482766.2691646