21000816 (number)

21000816 is an even 8-digits composite number following 21000815 and preceding 21000817. In scientific notation, it is written as 2.1000816 × 10^7. The sum of its digits is 18. It has a total of 8 prime factors and 80 positive divisors. There are 6935040 positive integers (up to 21000816) that are relatively prime to 21000816.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred sixteen

Notation

Scientific notation 2.1000816 × 10^7
Engineering notation 2.1000816 × 10^6

Prime Factorization of 21000816

Prime Factorization 2 × 2 × 2 × 2 × 9 × 3 × 173 × 281

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 2625102
Product of the distinct prime numbers

The prime factorization of 21000816 is 2 × 2 × 2 × 2 × 9 × 3 × 173 × 281. Since it has a total of 8 prime factors.

Most popular turbo-numbers

9, 3, 52, 65, 52, 563, 504, 9911, 36097, 83180, 694744, 261829, 3711354, 8019200, 85620722, 71878009, 337432758, 620973783, 7199732476, 1347962378

Basic calculations (n = 21000816)

Multiplication

n×y
n×2 42001632
n×3 63002448
n×4 84003264
n×5 105004080

Division

n÷y
n÷2 10500408
n÷3 7000272
n÷3 5250204
n÷5 4200163.2

Exponentiation

ny
n2 441034272665856
n3 9.2620796099495E+21
n4 1.945112296659E+29
n5 4.0848945441473E+36

Nth Root

y√n
2√n 4582.6647269902
3√n 275.89599105552
4√n 67.695381873435
5√n 29.137161017848

Divisors of 21000816

1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 173, 216, 281, 346, 432, 519, 562, 692, 843, 1038, 1124, 1384, 1557, 1686, 2076, 2248, 2529, 2768, 3114, 3372, 4152, 4496, 4671, 5058, 6228, 6744, 7587, 8304, 9342, 10116, 12456, 13488, 15174, 18684, 20232, 24912, 30348, 37368, 40464, 48613, 60696, 74736, 97226, 121392, 145839, 194452, 291678, 388904, 437517, 583356, 777808, 875034, 1166712, 1312551, 1750068, 2333424, 2625102, 3500136, 5250204, 7000272, 10500408, 21000816

80 divisors

τ Total Divisors 80
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21000815
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0125
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 80
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21000816 can be divided by 80 positive divisors. The sum of these divisors (counting 21000816) is 1, the average is 0.0125.

Base conversion 21000816

Base System Value
2 Binary 1010000000111001001110000
3 Ternary 1110111221201000
4 Quaternary 1100013021300
5 Quinary 20334011231
6 Senary 2030042000
8 Octal 120071160
10 Decimal 21000816
12 Duodecimal 7049300
16 Hexadecimal 1407270
20 Vigesimal 6b520g
36 Base36 ci4c0

Cryptographic Hash Functions

md5 3bd9c0742248d644af3a1e336243e84e
sha1 0de2939825e6de0d97d923af596ee5c1b52c0a36
sha256 ed5ac93cbd90b5a0ad35cead9a7b97f22ef991a991615962bddb56de9419c38c
sha512 f31ba3596218199f30fd1bb147f2f6b9c717363225a8460899e8a15c928828123d6d22809539a3d76ab277a6ec4722153631b6f22a74a811f9c206b09a5246bd
ripemd-160 611771c5e24b55482069aabc21fb027790ffec97

21000816 as geometric shapes

Circle

Radius = n
Diameter 42001632
Circumference 131952018.52998
Area 1.3855500309884E+15

Sphere

Radius = n
Volume 3.8796908346108E+22
Surface area 5.5422001239535E+15
Circumference 131952018.52998

Square

Length = n
Perimeter 84003264
Area 441034272665856
Diagonal 29699638.808102

Cube

Length = n
Surface area 2646205635995136
Volume 9.2620796099495E+21
Space diagonal 36374480.312405

Equilateral Triangle

Length = n
Perimeter 63002448
Area 1.9097344203411E+14
Altitude 18187240.156203

Triangular Pyramid

Length = n
Surface area 1.9097344203411E+14
Volume 1.0915465500142E+21
Height 9899879.6027006