21471805 (number)

21471805 is an odd 8-digits composite number following 21471804 and preceding 21471806. In scientific notation, it is written as 2.1471805 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors. There are 16061760 positive integers (up to 21471805) that are relatively prime to 21471805.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1471805 × 10^7
Engineering notation 2.1471805 × 10^6

Prime Factorization of 21471805

Prime Factorization 5 × 19 × 79 × 2861

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21471805
Product of the distinct prime numbers

The prime factorization of 21471805 is 5 × 19 × 79 × 2861. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 4, 38, 28, 648, 518, 8364, 5281, 23181, 76595, 362447, 950213, 3281221, 9797068, 9232336, 39654312, 649072373, 601967662, 1375167290, 1150879435

Basic calculations (n = 21471805)

Multiplication

n×y
n×2 42943610
n×3 64415415
n×4 85887220
n×5 107359025

Division

n÷y
n÷2 10735902.5
n÷3 7157268.3333333
n÷3 5367951.25
n÷5 4294361

Exponentiation

ny
n2 461038409958025
n3 9.8993268361288E+21
n4 2.1255641545662E+29
n5 4.5639699041836E+36

Nth Root

y√n
2√n 4633.7679052797
3√n 277.9432841531
4√n 68.071784942659
5√n 29.266696970869

Divisors of 21471805

1, 5, 19, 79, 95, 395, 1501, 2861, 7505, 14305, 54359, 226019, 271795, 1130095, 4294361, 21471805

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 -21471804
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 21471805 can be divided by 16 positive divisors. The sum of these divisors (counting 21471805) is 1, the average is 0.0625.

Base conversion 21471805

Base System Value
2 Binary 1010001111010001000111101
3 Ternary 1111101212210001
4 Quaternary 1101322020331
5 Quinary 20444044210
6 Senary 2044114301
8 Octal 121721075
10 Decimal 21471805
12 Duodecimal 7235991
16 Hexadecimal 147a23d
20 Vigesimal 6e3ja5
36 Base36 cs7r1

Cryptographic Hash Functions

md5 79f7d283824d6493edcae7de1b4fa367
sha1 7e12236b4677d329c0374a872ba8963da3eecaf2
sha256 02b4e4b0010f697b05a52a0c41d7de716256299cdb3e0d38f8bde866d3f1e324
sha512 9a60f9b1da9612ab6558b57d8adb7becffe913926159e57ec2fb6e68a9f75cafcff49472f68050d43e029566fc99c53c5dd5fc98038205acfa4b4dde468a0252
ripemd-160 ca6a173b5672a451d7deb56251e022fce82e668f

21471805 as geometric shapes

Circle

Radius = n
Diameter 42943610
Circumference 134911329.69463
Area 1.4483948817469E+15

Sphere

Radius = n
Volume 4.1466203285155E+22
Surface area 5.7935795269874E+15
Circumference 134911329.69463

Square

Length = n
Perimeter 85887220
Area 461038409958025
Diagonal 30365717.83963

Cube

Length = n
Surface area 2766230459748150
Volume 9.8993268361288E+21
Space diagonal 37190257.190211

Equilateral Triangle

Length = n
Perimeter 64415415
Area 1.9963548757202E+14
Altitude 18595128.595106

Triangular Pyramid

Length = n
Surface area 1.9963548757202E+14
Volume 1.1666468558348E+21
Height 10121905.946543