21685213 (number)

21685213 is an odd 8-digits composite number following 21685212 and preceding 21685214. In scientific notation, it is written as 2.1685213 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors. There are 18068400 positive integers (up to 21685213) that are relatively prime to 21685213.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred eighty-five thousand two hundred thirteen

Notation

Scientific notation 2.1685213 × 10^7
Engineering notation 2.1685213 × 10^6

Prime Factorization of 21685213

Prime Factorization 19 × 11 × 31 × 3347

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21685213
Product of the distinct prime numbers

The prime factorization of 21685213 is 19 × 11 × 31 × 3347. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 6, 69, 79, 760, 957, 9234, 7691, 44580, 23830, 621985, 677181, 9058684, 1812806, 64347565, 98269779, 164023560, 333241842, 4574997013, 7363625688

Basic calculations (n = 21685213)

Multiplication

n×y
n×2 43370426
n×3 65055639
n×4 86740852
n×5 108426065

Division

n÷y
n÷2 10842606.5
n÷3 7228404.3333333
n÷3 5421303.25
n÷5 4337042.6

Exponentiation

ny
n2 470248462855369
n3 1.0197438079941E+22
n4 2.2113361681784E+29
n5 4.7953295821552E+36

Nth Root

y√n
2√n 4656.7384508903
3√n 278.86107513385
4√n 68.240299317121
5√n 29.324643321981

Divisors of 21685213

1, 11, 19, 31, 209, 341, 589, 3347, 6479, 36817, 63593, 103757, 699523, 1141327, 1971383, 21685213

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 -21685212
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 21685213 can be divided by 16 positive divisors. The sum of these divisors (counting 21685213) is 1, the average is 0.0625.

Base conversion 21685213

Base System Value
2 Binary 1010010101110001111011101
3 Ternary 1111210201112001
4 Quaternary 1102232033131
5 Quinary 21022411323
6 Senary 2052442301
8 Octal 122561735
10 Decimal 21685213
12 Duodecimal 7319391
16 Hexadecimal 14ae3dd
20 Vigesimal 6fad0d
36 Base36 cwsf1

Cryptographic Hash Functions

md5 fe0329f3b9082153e4b7c2ff8e374148
sha1 915b98dbeec3a91b7e1d73a9eb77bf5b82b70407
sha256 3ff38c43d631f6dbc5becb89360420e0d7fd45b2b565408bb754fbd7d96cf171
sha512 f4c5a7bc09e90857bd7437b447bc914c99a64c3751e88686009f05d23108b3f3fcdf01c5320e88d093576f0a83adc08fb825a4db19af82edc9d2780c35f2414a
ripemd-160 e8ff02aaf394be5c2e1e81073410b62d5660364d

21685213 as geometric shapes

Circle

Radius = n
Diameter 43370426
Circumference 136252211.70466
Area 1.4773291162683E+15

Sphere

Radius = n
Volume 4.2714928743174E+22
Surface area 5.9093164650733E+15
Circumference 136252211.70466

Square

Length = n
Perimeter 86740852
Area 470248462855369
Diagonal 30667522.327549

Cube

Length = n
Surface area 2821490777132214
Volume 1.0197438079941E+22
Space diagonal 37559890.688953

Equilateral Triangle

Length = n
Perimeter 65055639
Area 2.0362355746167E+14
Altitude 18779945.344477

Triangular Pyramid

Length = n
Surface area 2.0362355746167E+14
Volume 1.2017796028427E+21
Height 10222507.442516