20105749 (number)

20105749 is an odd 8-digits composite number following 20105748 and preceding 20105750. In scientific notation, it is written as 2.0105749 × 10^7. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 19081920 positive integers (up to 20105749) that are relatively prime to 20105749.

Interesting facts

Basic properties

Name

Name twenty million one hundred five thousand seven hundred forty-nine

Notation

Scientific notation 2.0105749 × 10^7
Engineering notation 2.0105749 × 10^6

Prime Factorization of 20105749

Prime Factorization 23 × 131 × 6673

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20105749
Product of the distinct prime numbers

The prime factorization of 20105749 is 23 × 131 × 6673. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20105749)

Multiplication

n×y
n×2 40211498
n×3 60317247
n×4 80422996
n×5 100528745

Division

n÷y
n÷2 10052874.5
n÷3 6701916.3333333
n÷3 5026437.25
n÷5 4021149.8

Exponentiation

ny
n2 404241142851001
n3 8.1275709536354E+21
n4 1.6341090157348E+29
n5 3.2854985709002E+36

Nth Root

y√n
2√n 4483.9434652993
3√n 271.91933251611
4√n 66.96225403389
5√n 28.884446602599

Divisors of 20105749

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 -20105748
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 20105749 can be divided by 8 positive divisors. The sum of these divisors (counting 20105749) is 1, the average is 0.125.

Base conversion 20105749

Base System Value
2 Binary 1001100101100101000010101
3 Ternary 1101211110220101
4 Quaternary 1030230220111
5 Quinary 20121340444
6 Senary 1554534101
8 Octal 114545025
10 Decimal 20105749
12 Duodecimal 6897331
16 Hexadecimal 132ca15
20 Vigesimal 65d479
36 Base36 byxp1

Cryptographic Hash Functions

md5 fa83e0ec5457131e4935b1a3240b458a
sha1 31b78d033410a65c78d0ae7b568f17e463c56bb9
sha256 65c174e9372df8e548667009a707f38116d177343220733fc6d6c6f61dfc2a2a
sha512 ef602a1895e195957924f66d409cc5b738b2468049e5cfc5d75e24db8a4b4116e5cfcdff8558b2a550b34394359923fd7d4f183790a861374e05bd5fe1a9180e
ripemd-160 3059aa10a2e72602aa246f3fc17cda631fef4626

20105749 as geometric shapes

Circle

Radius = n
Diameter 40211498
Circumference 126328146.70664
Area 1.2699610046594E+15

Sphere

Radius = n
Volume 3.4044689599294E+22
Surface area 5.0798440186378E+15
Circumference 126328146.70664

Square

Length = n
Perimeter 80422996
Area 404241142851001
Diagonal 28433822.917469

Cube

Length = n
Surface area 2425446857106006
Volume 8.1275709536354E+21
Space diagonal 34824178.792227

Equilateral Triangle

Length = n
Perimeter 60317247
Area 1.7504154948191E+14
Altitude 17412089.396114

Triangular Pyramid

Length = n
Surface area 1.7504154948191E+14
Volume 9.578434226484E+20
Height 9477940.9724898