21000000 (number)

21000000 is an even 8-digits composite number following 20999999 and preceding 21000001. In scientific notation, it is written as 2.1000000 × 10^7. The sum of its digits is 3. It has a total of 9 prime factors and 56 positive divisors. There are 4800000 positive integers (up to 21000000) that are relatively prime to 21000000.

Interesting facts

Basic properties

Name

Name twenty-one million

Notation

Scientific notation 2.1000000 × 10^7
Engineering notation 2.1000000 × 10^6

Prime Factorization of 21000000

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 375 × 175 × 5

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 656250
Product of the distinct prime numbers

The prime factorization of 21000000 is 2 × 2 × 2 × 2 × 2 × 2 × 375 × 175 × 5. Since it has a total of 9 prime factors.

Most popular turbo-numbers

2, 3, 68, 46, 820, 985, 3776, 9885, 60813, 38196, 749181, 901457, 536762, 9263101, 66227795, 14469695, 579900929, 564599197, 2863644807, 2195143264

Basic calculations (n = 21000000)

Multiplication

n×y
n×2 42000000
n×3 63000000
n×4 84000000
n×5 105000000

Division

n÷y
n÷2 10500000
n÷3 7000000
n÷3 5250000
n÷5 4200000

Exponentiation

ny
n2 441000000000000
n3 9.261E+21
n4 1.94481E+29
n5 4.084101E+36

Nth Root

y√n
2√n 4582.5756949558
3√n 275.89241763811
4√n 67.694724277124
5√n 29.136934585762

Divisors of 21000000

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 175, 320, 350, 375, 700, 750, 875, 1400, 1500, 1750, 1875, 2800, 3000, 3500, 3750, 5600, 6000, 7000, 7500, 11200, 12000, 14000, 15000, 24000, 28000, 30000, 56000, 60000, 65625, 120000, 131250, 262500, 328125, 525000, 656250, 1050000, 1312500, 2100000, 2625000, 4200000, 5250000, 10500000, 21000000

56 divisors

τ Total Divisors 56
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20999999
Sum of the proper positive divisors of n
A Arithmetic Mean 0.017857142857143
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 56
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21000000 can be divided by 56 positive divisors. The sum of these divisors (counting 21000000) is 1, the average is 0.017857142857143.

Base conversion 21000000

Base System Value
2 Binary 1010000000110111101000000
3 Ternary 1110111220120210
4 Quaternary 1100012331000
5 Quinary 20334000000
6 Senary 2030034120
8 Octal 120067500
10 Decimal 21000000
12 Duodecimal 7048940
16 Hexadecimal 1406f40
20 Vigesimal 6b5000
36 Base36 ci3pc

Cryptographic Hash Functions

md5 46936f9af8deab7c2e3e92389c268001
sha1 d196d17e4e25258ee9ac75503f919fc906c7ced5
sha256 f1cf94b8f53a5b3fd6a928f7e69cce597ef5c828acd8bb3f4c21693fc06266ec
sha512 a4282e3ad97d52adfd7c488a079e56841e4bc158b7a020634418fe0c2741de10d6c3d637eb06eb5cc907a41c7cb1422b4c54c807e066cdc6249a318a0ccbb898
ripemd-160 d67fe02a4f1f27eb682e0c56e63bad652dac1d54

21000000 as geometric shapes

Circle

Radius = n
Diameter 42000000
Circumference 131946891.45077
Area 1.3854423602331E+15

Sphere

Radius = n
Volume 3.8792386086527E+22
Surface area 5.5417694409324E+15
Circumference 131946891.45077

Square

Length = n
Perimeter 84000000
Area 441000000000000
Diagonal 29698484.809835

Cube

Length = n
Surface area 2646000000000000
Volume 9.261E+21
Space diagonal 36373066.958946

Equilateral Triangle

Length = n
Perimeter 63000000
Area 1.9095860153447E+14
Altitude 18186533.479473

Triangular Pyramid

Length = n
Surface area 1.9095860153447E+14
Volume 1.0914193167614E+21
Height 9899494.9366117