21285890 (number)

21285890 is an even 8-digits composite number following 21285889 and preceding 21285891. In scientific notation, it is written as 2.1285890 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors. There are 8066160 positive integers (up to 21285890) that are relatively prime to 21285890.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred eighty-five thousand eight hundred ninety

Notation

Scientific notation 2.1285890 × 10^7
Engineering notation 2.1285890 × 10^6

Prime Factorization of 21285890

Prime Factorization 2 × 5 × 19 × 112031

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21285890
Product of the distinct prime numbers

The prime factorization of 21285890 is 2 × 5 × 19 × 112031. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 2, 76, 4, 327, 936, 3470, 6173, 99793, 71102, 831233, 210258, 6704407, 7651276, 81738521, 79954523, 585470681, 687196525, 1793870430, 2793089992

Basic calculations (n = 21285890)

Multiplication

n×y
n×2 42571780
n×3 63857670
n×4 85143560
n×5 106429450

Division

n÷y
n÷2 10642945
n÷3 7095296.6666667
n÷3 5321472.5
n÷5 4257178

Exponentiation

ny
n2 453089113092100
n3 9.644405021476E+21
n4 2.0528974440259E+29
n5 4.3697749174816E+36

Nth Root

y√n
2√n 4613.6634034138
3√n 277.13876108001
4√n 67.923953090304
5√n 29.215839007377

Divisors of 21285890

1, 2, 5, 10, 19, 38, 95, 190, 112031, 224062, 560155, 1120310, 2128589, 4257178, 10642945, 21285890

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 -21285889
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 21285890 can be divided by 16 positive divisors. The sum of these divisors (counting 21285890) is 1, the average is 0.0625.

Base conversion 21285890

Base System Value
2 Binary 1010001001100110000000010
3 Ternary 1111001102202022
4 Quaternary 1101030300002
5 Quinary 20422122030
6 Senary 2040121442
8 Octal 121146002
10 Decimal 21285890
12 Duodecimal 7166282
16 Hexadecimal 144cc02
20 Vigesimal 6d0eea
36 Base36 co8aq

Cryptographic Hash Functions

md5 42e75365fb1d52e4b07ad39cc9d16683
sha1 61ef0e83c6d5add34f71d019ff475318da7d03ec
sha256 a1d608822a46360caf5f32bf913bf36f14909f7e644d3acd9b0ce3ab5b5a8c81
sha512 f51af88d4e05b2ed9a3c5b0f2b707274e61ccdc1881408ddbb2b307fa13eefe325e168f58bcff7448ffc8aee76b5f532cf2b831d82c7fdc83650472ab2983028
ripemd-160 c690c2cb8949fa3ce89c3b498a1e697ea3f5790a

21285890 as geometric shapes

Circle

Radius = n
Diameter 42571780
Circumference 133743191.29824
Area 1.4234214291117E+15

Sphere

Radius = n
Volume 4.0398389284951E+22
Surface area 5.6936857164466E+15
Circumference 133743191.29824

Square

Length = n
Perimeter 85143560
Area 453089113092100
Diagonal 30102794.325182

Cube

Length = n
Surface area 2718534678552600
Volume 9.644405021476E+21
Space diagonal 36868242.964322

Equilateral Triangle

Length = n
Perimeter 63857670
Area 1.9619334105796E+14
Altitude 18434121.482161

Triangular Pyramid

Length = n
Surface area 1.9619334105796E+14
Volume 1.1366040318659E+21
Height 10034264.775061