21061818 (number)

21061818 is an even 8-digits composite number following 21061817 and preceding 21061819. In scientific notation, it is written as 2.1061818 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors. There are 6999552 positive integers (up to 21061818) that are relatively prime to 21061818.

Interesting facts

Basic properties

Name

Name twenty-one million sixty-one thousand eight hundred eighteen

Notation

Scientific notation 2.1061818 × 10^7
Engineering notation 2.1061818 × 10^6

Prime Factorization of 21061818

Prime Factorization 2 × 3 × 3 × 373 × 3137

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 7020606
Product of the distinct prime numbers

The prime factorization of 21061818 is 2 × 3 × 3 × 373 × 3137. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 6, 64, 12, 290, 563, 2415, 6099, 73378, 48923, 220312, 839754, 9620133, 7001878, 53573760, 52541337, 91698453, 305357329, 621702513, 6350424897

Basic calculations (n = 21061818)

Multiplication

n×y
n×2 42123636
n×3 63185454
n×4 84247272
n×5 105309090

Division

n÷y
n÷2 10530909
n÷3 7020606
n÷3 5265454.5
n÷5 4212363.6

Exponentiation

ny
n2 443600177465124
n3 9.3430262025381E+21
n4 1.9678111744709E+29
n5 4.1445680815072E+36

Nth Root

y√n
2√n 4589.3156352554
3√n 276.16286858506
4√n 67.744487858832
5√n 29.1540685847

Divisors of 21061818

1, 2, 3, 6, 9, 18, 373, 746, 1119, 2238, 3137, 3357, 6274, 6714, 9411, 18822, 28233, 56466, 1170101, 2340202, 3510303, 7020606, 10530909, 21061818

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21061817
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21061818 can be divided by 24 positive divisors. The sum of these divisors (counting 21061818) is 1, the average is 0.041666666666667.

Base conversion 21061818

Base System Value
2 Binary 1010000010110000010111010
3 Ternary 1110122001101100
4 Quaternary 1100112002322
5 Quinary 20342434233
6 Senary 2031232230
8 Octal 120260272
10 Decimal 21061818
12 Duodecimal 7078676
16 Hexadecimal 14160ba
20 Vigesimal 6bceai
36 Base36 cjfei

Cryptographic Hash Functions

md5 703565a1241cac0d32fddef6a6e27980
sha1 a9676c3a5ca426fbf79fbd1eb1e92747e1c1981d
sha256 aea0efa279eb9a8bd031070ad257d245c03ec321ab7d511339e281d2e644016a
sha512 d2f8d46df9598fc0d92ae49868ec4c2da106e8f583c4ea8f4965c40f3d21ad724edab7f41ec61c54415f03dabdef6f274c2a8bafd3beb99939810c4ae58e78ff
ripemd-160 2977c465b21e47a5785879115553dfb5f3a63a42

21061818 as geometric shapes

Circle

Radius = n
Diameter 42123636
Circumference 132335305.40009
Area 1.3936110586556E+15

Sphere

Radius = n
Volume 3.9135976640254E+22
Surface area 5.5744442346222E+15
Circumference 132335305.40009

Square

Length = n
Perimeter 84247272
Area 443600177465124
Diagonal 29785908.663834

Cube

Length = n
Surface area 2661601064790744
Volume 9.3430262025381E+21
Space diagonal 36480138.875769

Equilateral Triangle

Length = n
Perimeter 63185454
Area 1.9208451140404E+14
Altitude 18240069.437884

Triangular Pyramid

Length = n
Surface area 1.9208451140404E+14
Volume 1.1010861974364E+21
Height 9928636.2212779