21495985 (number)

21495985 is an odd 8-digits composite number following 21495984 and preceding 21495986. In scientific notation, it is written as 2.1495985 × 10^7. The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors. There are 14629248 positive integers (up to 21495985) that are relatively prime to 21495985.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-five thousand nine hundred eighty-five

Notation

Scientific notation 2.1495985 × 10^7
Engineering notation 2.1495985 × 10^6

Prime Factorization of 21495985

Prime Factorization 5 × 7 × 137 × 4483

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21495985
Product of the distinct prime numbers

The prime factorization of 21495985 is 5 × 7 × 137 × 4483. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 5, 41, 92, 140, 643, 6473, 3666, 28049, 72606, 246289, 874487, 6977452, 767778, 70854445, 42301081, 928967312, 59294747, 1689086624, 3201407761

Basic calculations (n = 21495985)

Multiplication

n×y
n×2 42991970
n×3 64487955
n×4 85983940
n×5 107479925

Division

n÷y
n÷2 10747992.5
n÷3 7165328.3333333
n÷3 5373996.25
n÷5 4299197

Exponentiation

ny
n2 462077371120225
n3 9.9328082384398E+21
n4 2.1351549690138E+29
n5 4.5897259186596E+36

Nth Root

y√n
2√n 4636.3762789489
3√n 278.04757824809
4√n 68.090941239998
5√n 29.273285612837

Divisors of 21495985

1, 5, 7, 35, 137, 685, 959, 4483, 4795, 22415, 31381, 156905, 614171, 3070855, 4299197, 21495985

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 -21495984
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 21495985 can be divided by 16 positive divisors. The sum of these divisors (counting 21495985) is 1, the average is 0.0625.

Base conversion 21495985

Base System Value
2 Binary 1010010000000000010110001
3 Ternary 1111110002221121
4 Quaternary 1102000002301
5 Quinary 21000332420
6 Senary 2044422241
8 Octal 122000261
10 Decimal 21495985
12 Duodecimal 7247981
16 Hexadecimal 14800b1
20 Vigesimal 6e6jj5
36 Base36 csqep

Cryptographic Hash Functions

md5 b425d7975aae50fac985c3cb5d0f7274
sha1 bf1d62ecfad680019b055d9bb258e463bf8040a6
sha256 89c44850d3fda58375693009a8c7ba823a49db3bb0ba7051d64612bd1fd9b0f4
sha512 228b0604fe1302ebaf77c74d5886e041fd3184cff80f293fa5d4fa88b8eebaac3f708196047a1258b6bd39bd0b141b219c93707ccb198f247724a54f4fe7f8c0
ripemd-160 0c66092b39812acf3f5199effe40bcaa5fe1e94f

21495985 as geometric shapes

Circle

Radius = n
Diameter 42991970
Circumference 135063257.11535
Area 1.4516588745014E+15

Sphere

Radius = n
Volume 4.1606449855198E+22
Surface area 5.8066354980055E+15
Circumference 135063257.11535

Square

Length = n
Perimeter 85983940
Area 462077371120225
Diagonal 30399913.523569

Cube

Length = n
Surface area 2772464226721350
Volume 9.9328082384398E+21
Space diagonal 37232138.178738

Equilateral Triangle

Length = n
Perimeter 64487955
Area 2.0008537095202E+14
Altitude 18616069.089369

Triangular Pyramid

Length = n
Surface area 2.0008537095202E+14
Volume 1.1705926769377E+21
Height 10133304.507856