20181690 (number)

20181690 is an even 8-digits composite number following 20181689 and preceding 20181691. In scientific notation, it is written as 2.0181690 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors. There are 5381712 positive integers (up to 20181690) that are relatively prime to 20181690.

Interesting facts

Basic properties

Name

Name twenty million one hundred eighty-one thousand six hundred ninety

Notation

Scientific notation 2.0181690 × 10^7
Engineering notation 2.0181690 × 10^6

Prime Factorization of 20181690

Prime Factorization 2 × 5 × 3 × 9 × 74747

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20181690
Product of the distinct prime numbers

The prime factorization of 20181690 is 2 × 5 × 3 × 9 × 74747. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 7, 67, 7, 537, 587, 3643, 4944, 66941, 1298, 680445, 66026, 6294568, 4805294, 58699649, 11101374, 40745022, 904442633, 9598456505, 8406606677

Basic calculations (n = 20181690)

Multiplication

n×y
n×2 40363380
n×3 60545070
n×4 80726760
n×5 100908450

Division

n÷y
n÷2 10090845
n÷3 6727230
n÷3 5045422.5
n÷5 4036338

Exponentiation

ny
n2 407300611256100
n3 8.2200146731811E+21
n4 1.6589378792959E+29
n5 3.3480170009208E+36

Nth Root

y√n
2√n 4492.403588281
3√n 272.26125597582
4√n 67.025395099775
5√n 28.906233477789

Divisors of 20181690

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 74747, 149494, 224241, 373735, 448482, 672723, 747470, 1121205, 1345446, 2018169, 2242410, 3363615, 4036338, 6727230, 10090845, 20181690

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20181689
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20181690 can be divided by 32 positive divisors. The sum of these divisors (counting 20181690) is 1, the average is 0.03125.

Base conversion 20181690

Base System Value
2 Binary 1001100111111001010111010
3 Ternary 1101222100002000
4 Quaternary 1030333022322
5 Quinary 20131303230
6 Senary 2000321430
8 Octal 114771272
10 Decimal 20181690
12 Duodecimal 6913276
16 Hexadecimal 133f2ba
20 Vigesimal 662e4a
36 Base36 c0kai

Cryptographic Hash Functions

md5 91f0b38dc9255d503259a29ba047dddc
sha1 12f13680ce64ff8d25e303bb45bb4320a3b4baae
sha256 d4216fcff70a789a9f5d1336bebded40c59d5ea418a43e2410954bba71c8b67e
sha512 4743b5f5b81ccd3a8682f5947b4c543b5b7f5586c68c6efea8158c4f36f381ee36f96a149b55692632a66ad6640c0541f0aeedb6d68c7c16abf9b3ac06242749
ripemd-160 c148bacc2b82a8a99e331d95fe13caf17b1fc9af

20181690 as geometric shapes

Circle

Radius = n
Diameter 40363380
Circumference 126805298.08205
Area 1.2795726081248E+15

Sphere

Radius = n
Volume 3.4431916946221E+22
Surface area 5.1182904324992E+15
Circumference 126805298.08205

Square

Length = n
Perimeter 80726760
Area 407300611256100
Diagonal 28541219.709609

Cube

Length = n
Surface area 2443803667536600
Volume 8.2200146731811E+21
Space diagonal 34955712.462605

Equilateral Triangle

Length = n
Perimeter 60545070
Area 1.7636633816236E+14
Altitude 17477856.231302

Triangular Pyramid

Length = n
Surface area 1.7636633816236E+14
Volume 9.6873801947655E+20
Height 9513739.9032032