21381856 (number)

21381856 is an even 8-digits composite number following 21381855 and preceding 21381857. In scientific notation, it is written as 2.1381856 × 10^7. The sum of its digits is 34. It has a total of 7 prime factors and 24 positive divisors. There are 10401408 positive integers (up to 21381856) that are relatively prime to 21381856.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred eighty-one thousand eight hundred fifty-six

Notation

Scientific notation 2.1381856 × 10^7
Engineering notation 2.1381856 × 10^6

Prime Factorization of 21381856

Prime Factorization 2 × 2 × 2 × 2 × 2 × 37 × 18059

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 1336366
Product of the distinct prime numbers

The prime factorization of 21381856 is 2 × 2 × 2 × 2 × 2 × 37 × 18059. Since it has a total of 7 prime factors.

Most popular turbo-numbers

2, 10, 43, 77, 994, 600, 7728, 6930, 12982, 40108, 463937, 854509, 6353921, 8250241, 18147246, 48889321, 115327754, 106896763, 6484606038, 9530603633

Basic calculations (n = 21381856)

Multiplication

n×y
n×2 42763712
n×3 64145568
n×4 85527424
n×5 106909280

Division

n÷y
n÷2 10690928
n÷3 7127285.3333333
n÷3 5345464
n÷5 4276371.2

Exponentiation

ny
n2 457183766004736
n3 9.775437450251E+21
n4 2.0901699589827E+29
n5 4.4691713078495E+36

Nth Root

y√n
2√n 4624.0519028229
3√n 277.55462388161
4√n 68.000381637333
5√n 29.242135156369

Divisors of 21381856

1, 2, 4, 8, 16, 32, 37, 74, 148, 296, 592, 1184, 18059, 36118, 72236, 144472, 288944, 577888, 668183, 1336366, 2672732, 5345464, 10690928, 21381856

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 -21381855
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 21381856 can be divided by 24 positive divisors. The sum of these divisors (counting 21381856) is 1, the average is 0.041666666666667.

Base conversion 21381856

Base System Value
2 Binary 1010001100100001011100000
3 Ternary 1111020022101121
4 Quaternary 1101210023200
5 Quinary 20433204411
6 Senary 2042142024
8 Octal 121441340
10 Decimal 21381856
12 Duodecimal 71b1914
16 Hexadecimal 14642e0
20 Vigesimal 6dcecg
36 Base36 cqacg

Cryptographic Hash Functions

md5 0a9940a7807db13a0e166aa623f6b1e8
sha1 bea03627e7c340a07049db1cb04155d7e56570a5
sha256 a7028d2482a4d76f0c1fccc7c0246bfa218b0a1e2ed3b2826d068993a85aef7a
sha512 0b290adb5083900dea58b4be6b7636f77b2358b2eece04b08f2107ca46c17b06628c1a51d05d2a752afdca53656df0f95d2a4841677f29e84f9c4644c2763c70
ripemd-160 8abc8148539dfa2d141a4a46075ddc3cf45916de

21381856 as geometric shapes

Circle

Radius = n
Diameter 42763712
Circumference 134346163.45943
Area 1.436285160621E+15

Sphere

Radius = n
Volume 4.0947256639113E+22
Surface area 5.745140642484E+15
Circumference 134346163.45943

Square

Length = n
Perimeter 85527424
Area 457183766004736
Diagonal 30238510.743909

Cube

Length = n
Surface area 2743102596028416
Volume 9.775437450251E+21
Space diagonal 37034460.952121

Equilateral Triangle

Length = n
Perimeter 64145568
Area 1.9796637777897E+14
Altitude 18517230.476061

Triangular Pyramid

Length = n
Surface area 1.9796637777897E+14
Volume 1.1520463516896E+21
Height 10079503.581303