21031765 (number)

21031765 is an odd 8-digits composite number following 21031764 and preceding 21031766. In scientific notation, it is written as 2.1031765 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors. There are 15861312 positive integers (up to 21031765) that are relatively prime to 21031765.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand seven hundred sixty-five

Notation

Scientific notation 2.1031765 × 10^7
Engineering notation 2.1031765 × 10^6

Prime Factorization of 21031765

Prime Factorization 5 × 19 × 823 × 269

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21031765
Product of the distinct prime numbers

The prime factorization of 21031765 is 5 × 19 × 823 × 269. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 6, 45, 68, 229, 556, 284, 1815, 23239, 61720, 960740, 442972, 4290061, 3086853, 35548567, 2620763, 60346606, 314373854, 4145654585, 1960424546

Basic calculations (n = 21031765)

Multiplication

n×y
n×2 42063530
n×3 63095295
n×4 84127060
n×5 105158825

Division

n÷y
n÷2 10515882.5
n÷3 7010588.3333333
n÷3 5257941.25
n÷5 4206353

Exponentiation

ny
n2 442335139015225
n3 9.3030886950105E+21
n4 1.9566037520762E+29
n5 4.1150830311785E+36

Nth Root

y√n
2√n 4586.0402309618
3√n 276.03145426718
4√n 67.720308851642
5√n 29.145743873783

Divisors of 21031765

1, 5, 19, 95, 269, 823, 1345, 4115, 5111, 15637, 25555, 78185, 221387, 1106935, 4206353, 21031765

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 -21031764
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 21031765 can be divided by 16 positive divisors. The sum of these divisors (counting 21031765) is 1, the average is 0.0625.

Base conversion 21031765

Base System Value
2 Binary 1010000001110101101010101
3 Ternary 1110120112011021
4 Quaternary 1100032231111
5 Quinary 20341004030
6 Senary 2030441141
8 Octal 120165525
10 Decimal 21031765
12 Duodecimal 70631b1
16 Hexadecimal 140eb55
20 Vigesimal 6b8j85
36 Base36 cis7p

Cryptographic Hash Functions

md5 6b7833a0a8830b85754dcd1b23239ee7
sha1 094eca8f9a5786d090760014dc357611ab9fe1ed
sha256 348dd4e64698847913e9b8572d6201266c7848a11f7ffe009296b9524feed6e1
sha512 cd0bd744ec2154d4c3944143ca438ca27dea4c6e05fbd964fa0b888f371f180e3c8d5eb51b62c3540ad19f1aaa76c38cc66df2513b7db74b2bea162c7fc0bef1
ripemd-160 d7ce6c51032cd91cacb79639b2a2c6effe4eca75

21031765 as geometric shapes

Circle

Radius = n
Diameter 42063530
Circumference 132146476.83205
Area 1.3896368231549E+15

Sphere

Radius = n
Volume 3.8968686799919E+22
Surface area 5.5585472926194E+15
Circumference 132146476.83205

Square

Length = n
Perimeter 84127060
Area 442335139015225
Diagonal 29743407.303644

Cube

Length = n
Surface area 2654010834091350
Volume 9.3030886950105E+21
Space diagonal 36428085.552849

Equilateral Triangle

Length = n
Perimeter 63095295
Area 1.9153673368685E+14
Altitude 18214042.776424

Triangular Pyramid

Length = n
Surface area 1.9153673368685E+14
Volume 1.096379517037E+21
Height 9914469.1012146