21000785 (number)

21000785 is an odd 8-digits composite number following 21000784 and preceding 21000786. In scientific notation, it is written as 2.1000785 × 10^7. The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors. There are 14956032 positive integers (up to 21000785) that are relatively prime to 21000785.

Interesting facts

Basic properties

Name

Name twenty-one million seven hundred eighty-five

Notation

Scientific notation 2.1000785 × 10^7
Engineering notation 2.1000785 × 10^6

Prime Factorization of 21000785

Prime Factorization 65 × 13 × 29 × 857

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21000785
Product of the distinct prime numbers

The prime factorization of 21000785 is 65 × 13 × 29 × 857. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 6, 66, 46, 26, 784, 1169, 1428, 91689, 28988, 846706, 396496, 6169733, 9371405, 8354497, 94950087, 613315620, 382472389, 3267137912, 2349729414

Basic calculations (n = 21000785)

Multiplication

n×y
n×2 42001570
n×3 63002355
n×4 84003140
n×5 105003925

Division

n÷y
n÷2 10500392.5
n÷3 7000261.6666667
n÷3 5250196.25
n÷5 4200157

Exponentiation

ny
n2 441032970616225
n3 9.2620385938227E+21
n4 1.9451008117057E+29
n5 4.0848643949957E+36

Nth Root

y√n
2√n 4582.6613446773
3√n 275.89585530239
4√n 67.695356891572
5√n 29.137152415778

Divisors of 21000785

1, 13, 29, 65, 377, 845, 857, 1885, 11141, 24505, 24853, 55705, 323089, 724165, 1615445, 21000785

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 -21000784
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 21000785 can be divided by 16 positive divisors. The sum of these divisors (counting 21000785) is 1, the average is 0.0625.

Base conversion 21000785

Base System Value
2 Binary 1010000000111001001010001
3 Ternary 1110111221122212
4 Quaternary 1100013021101
5 Quinary 20334011120
6 Senary 2030041505
8 Octal 120071121
10 Decimal 21000785
12 Duodecimal 7049295
16 Hexadecimal 1407251
20 Vigesimal 6b51j5
36 Base36 ci4b5

Cryptographic Hash Functions

md5 d1f553ea52570a86de675df4c7b9cd01
sha1 fb34d8ae75c2a7f136ca1315426b4481526515b7
sha256 5b5be96b47944826492da7945de60605e3f26a0ff069d1f95bc0f7d47bc64454
sha512 0804d0734d3be3e73f36037616470c1ce171a42a92cdfc92d6132a82611b41ea851ffc6950f282eac26d3d4f756432e45dc4199ed848dc536e5a763679dc45c9
ripemd-160 26681cc921b4b0dbf3a3c4f6d25b8dbe540d8b7c

21000785 as geometric shapes

Circle

Radius = n
Diameter 42001570
Circumference 131951823.75124
Area 1.3855459404788E+15

Sphere

Radius = n
Volume 3.8796736538158E+22
Surface area 5.5421837619153E+15
Circumference 131951823.75124

Square

Length = n
Perimeter 84003140
Area 441032970616225
Diagonal 29699594.967481

Cube

Length = n
Surface area 2646197823697350
Volume 9.2620385938227E+21
Space diagonal 36374426.61883

Equilateral Triangle

Length = n
Perimeter 63002355
Area 1.9097287823008E+14
Altitude 18187213.309415

Triangular Pyramid

Length = n
Surface area 1.9097287823008E+14
Volume 1.0915417162173E+21
Height 9899864.9891605