21471978 (number)

21471978 is an even 8-digits composite number following 21471977 and preceding 21471979. In scientific notation, it is written as 2.1471978 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 6506640 positive integers (up to 21471978) that are relatively prime to 21471978.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred seventy-one thousand nine hundred seventy-eight

Notation

Scientific notation 2.1471978 × 10^7
Engineering notation 2.1471978 × 10^6

Prime Factorization of 21471978

Prime Factorization 2 × 3 × 11 × 325333

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21471978
Product of the distinct prime numbers

The prime factorization of 21471978 is 2 × 3 × 11 × 325333. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 2, 44, 14, 52, 167, 5648, 4534, 60111, 53353, 177609, 769236, 1628590, 9375436, 4544044, 76626028, 29522752, 201771173, 5724353193, 9807458886

Basic calculations (n = 21471978)

Multiplication

n×y
n×2 42943956
n×3 64415934
n×4 85887912
n×5 107359890

Division

n÷y
n÷2 10735989
n÷3 7157326
n÷3 5367994.5
n÷5 4294395.6

Exponentiation

ny
n2 461045839232484
n3 9.8995661169914E+21
n4 2.1256326587359E+29
n5 4.5641537684458E+36

Nth Root

y√n
2√n 4633.786572556
3√n 277.9440306213
4√n 68.071922057159
5√n 29.266744131527

Divisors of 21471978

1, 2, 3, 6, 11, 22, 33, 66, 325333, 650666, 975999, 1951998, 3578663, 7157326, 10735989, 21471978

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 -21471977
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 21471978 can be divided by 16 positive divisors. The sum of these divisors (counting 21471978) is 1, the average is 0.0625.

Base conversion 21471978

Base System Value
2 Binary 1010001111010001011101010
3 Ternary 1111101220000110
4 Quaternary 1101322023222
5 Quinary 20444100403
6 Senary 2044115150
8 Octal 121721352
10 Decimal 21471978
12 Duodecimal 7235ab6
16 Hexadecimal 147a2ea
20 Vigesimal 6e3jii
36 Base36 cs7vu

Cryptographic Hash Functions

md5 9951fc56d0584ff6a99142f8d56b3af8
sha1 38e4c7da676c9e7a3c73dad91b573b7a030e4e5c
sha256 f05d86b9ba795a92a5581c1b1256d4695a36b05acdb7aa030846900c797217de
sha512 2696ffd71ed7421cb5eafd0e7e7073d7e4559ae38618bb47577c731d86efbfc642c73f2720952abdbb90080ae6bc5bd759888b7c52dbb183853336e009600924
ripemd-160 750b224a6b0ea36eed10b6351575b09dea9def5b

21471978 as geometric shapes

Circle

Radius = n
Diameter 42943956
Circumference 134912416.68568
Area 1.4484182215009E+15

Sphere

Radius = n
Volume 4.1467205582489E+22
Surface area 5.7936728860036E+15
Circumference 134912416.68568

Square

Length = n
Perimeter 85887912
Area 461045839232484
Diagonal 30365962.498577

Cube

Length = n
Surface area 2766275035394904
Volume 9.8995661169914E+21
Space diagonal 37190556.835001

Equilateral Triangle

Length = n
Perimeter 64415934
Area 1.9963870454222E+14
Altitude 18595278.417501

Triangular Pyramid

Length = n
Surface area 1.9963870454222E+14
Volume 1.1666750553549E+21
Height 10121987.499526