20131985 (number)

20131985 is an odd 8-digits composite number following 20131984 and preceding 20131986. In scientific notation, it is written as 2.0131985 × 10^7. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 16105584 positive integers (up to 20131985) that are relatively prime to 20131985.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0131985 × 10^7
Engineering notation 2.0131985 × 10^6

Prime Factorization of 20131985

Prime Factorization 5 × 4026397

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20131985
Product of the distinct prime numbers

The prime factorization of 20131985 is 5 × 4026397. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 9, 94, 60, 551, 880, 932, 5640, 26642, 55812, 95198, 14311, 1611852, 804354, 25255168, 48534275, 957385373, 11854067, 7781403086, 6456230572

Basic calculations (n = 20131985)

Multiplication

n×y
n×2 40263970
n×3 60395955
n×4 80527940
n×5 100659925

Division

n÷y
n÷2 10065992.5
n÷3 6710661.6666667
n÷3 5032996.25
n÷5 4026397

Exponentiation

ny
n2 405296820040225
n3 8.1594295015975E+21
n4 1.6426551233472E+29
n5 3.3069908303399E+36

Nth Root

y√n
2√n 4486.8680613542
3√n 272.0375569896
4√n 66.984088120644
5√n 28.891980936213

Divisors of 20131985

1, 5, 4026397, 20131985

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20131984
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20131985 can be divided by 4 positive divisors. The sum of these divisors (counting 20131985) is 1, the average is 0.25.

Base conversion 20131985

Base System Value
2 Binary 1001100110011000010010001
3 Ternary 1101212210220002
4 Quaternary 1030303002101
5 Quinary 20123210420
6 Senary 1555255345
8 Octal 114630221
10 Decimal 20131985
12 Duodecimal 68aa555
16 Hexadecimal 1333091
20 Vigesimal 65g9j5
36 Base36 bzhxt

Cryptographic Hash Functions

md5 6cc6fcaad78a88522c6ed560e29d8154
sha1 3153b91c5a8e6ea666aee89765478b73419c5f68
sha256 215e8a123822b1598228d532f9c460213ab43d40e8bd8d86aff50768f5f8a237
sha512 1bebb8b98f6c48969965c16cd8e9ba0381eb096ba290a94fc57f19f33a98f5c47bc54a7cfc9c0e6aa117c23401fb192cf43b86d29153b9fde7bea3fd31f890ec
ripemd-160 ef429bda0aafa5f42807b258a6028c2bfc4fffaf

20131985 as geometric shapes

Circle

Radius = n
Diameter 40263970
Circumference 126492992.35636
Area 1.2732775123617E+15

Sphere

Radius = n
Volume 3.4178138372937E+22
Surface area 5.0931100494467E+15
Circumference 126492992.35636

Square

Length = n
Perimeter 80527940
Area 405296820040225
Diagonal 28470926.224492

Cube

Length = n
Surface area 2431780920241350
Volume 8.1594295015975E+21
Space diagonal 34869620.877215

Equilateral Triangle

Length = n
Perimeter 60395955
Area 1.7549867111394E+14
Altitude 17434810.438607

Triangular Pyramid

Length = n
Surface area 1.7549867111394E+14
Volume 9.615979885322E+20
Height 9490308.7414972