21085955 (number)

21085955 is an odd 8-digits composite number following 21085954 and preceding 21085956. In scientific notation, it is written as 2.1085955 × 10^7. The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors. There are 15187680 positive integers (up to 21085955) that are relatively prime to 21085955.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-five thousand nine hundred fifty-five

Notation

Scientific notation 2.1085955 × 10^7
Engineering notation 2.1085955 × 10^6

Prime Factorization of 21085955

Prime Factorization 1177 × 5 × 3583

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21085955
Product of the distinct prime numbers

The prime factorization of 21085955 is 1177 × 5 × 3583. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21085955)

Multiplication

n×y
n×2 42171910
n×3 63257865
n×4 84343820
n×5 105429775

Division

n÷y
n÷2 10542977.5
n÷3 7028651.6666667
n÷3 5271488.75
n÷5 4217191

Exponentiation

ny
n2 444617498262025
n3 9.3751845605656E+21
n4 1.9768471976078E+29
n5 4.1683711050635E+36

Nth Root

y√n
2√n 4591.9445771917
3√n 276.26832321151
4√n 67.763888445039
5√n 29.16074767955

Divisors of 21085955

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 -21085954
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 21085955 can be divided by 8 positive divisors. The sum of these divisors (counting 21085955) is 1, the average is 0.125.

Base conversion 21085955

Base System Value
2 Binary 1010000011011111100000011
3 Ternary 1110200021111022
4 Quaternary 1100123330003
5 Quinary 20344222310
6 Senary 2031540055
8 Octal 120337403
10 Decimal 21085955
12 Duodecimal 708a62b
16 Hexadecimal 141bf03
20 Vigesimal 6bfehf
36 Base36 cjy0z

Cryptographic Hash Functions

md5 66194e1b0ee592c888e7449f83f736bc
sha1 fc590ea7757c8edcc78bf31eb7b1a56ad3c766e4
sha256 719fce396684e04fbefef6ba26852519048101999a1df1756986b227d675731b
sha512 18afcee6fdef37f52f368f821070a01e2f3c4993b9f4ce33b87e53f89dceb6e1a4570074e981bb03bcc97fae88366f0ee05f3e4d6c7d4d7bd66a516f9864979e
ripemd-160 cf001845d7cd626fdc860da969f6f52409899fc2

21085955 as geometric shapes

Circle

Radius = n
Diameter 42171910
Circumference 132486962.64385
Area 1.3968070661975E+15

Sphere

Radius = n
Volume 3.9270681255362E+22
Surface area 5.5872282647898E+15
Circumference 132486962.64385

Square

Length = n
Perimeter 84343820
Area 444617498262025
Diagonal 29820043.536589

Cube

Length = n
Surface area 2667704989572150
Volume 9.3751845605656E+21
Space diagonal 36521945.386111

Equilateral Triangle

Length = n
Perimeter 63257865
Area 1.92525024231E+14
Altitude 18260972.693056

Triangular Pyramid

Length = n
Surface area 1.92525024231E+14
Volume 1.1048760962752E+21
Height 9940014.5121963