21356812 (number)

21356812 is an even 8-digits composite number following 21356811 and preceding 21356813. In scientific notation, it is written as 2.1356812 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 12 positive divisors. There are 10667840 positive integers (up to 21356812) that are relatively prime to 21356812.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1356812 × 10^7
Engineering notation 2.1356812 × 10^6

Prime Factorization of 21356812

Prime Factorization 2 × 2 × 1361 × 3923

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10678406
Product of the distinct prime numbers

The prime factorization of 21356812 is 2 × 2 × 1361 × 3923. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 3, 88, 12, 919, 323, 3732, 5998, 82732, 52648, 84832, 808298, 2161171, 2509614, 92873447, 32909169, 315581677, 533191551, 141501918, 8144412188

Basic calculations (n = 21356812)

Multiplication

n×y
n×2 42713624
n×3 64070436
n×4 85427248
n×5 106784060

Division

n÷y
n÷2 10678406
n÷3 7118937.3333333
n÷3 5339203
n÷5 4271362.4

Exponentiation

ny
n2 456113418803344
n3 9.7411285360603E+21
n4 2.0803945081247E+29
n5 4.4430594395853E+36

Nth Root

y√n
2√n 4621.3430948156
3√n 277.44621742649
4√n 67.980461125353
5√n 29.235281837533

Divisors of 21356812

1, 2, 4, 1361, 2722, 3923, 5444, 7846, 15692, 5339203, 10678406, 21356812

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21356811
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21356812 can be divided by 12 positive divisors. The sum of these divisors (counting 21356812) is 1, the average is 0.083333333333333.

Base conversion 21356812

Base System Value
2 Binary 1010001011110000100001100
3 Ternary 1111012001001001
4 Quaternary 1101132010030
5 Quinary 20431404222
6 Senary 2041430044
8 Octal 121360414
10 Decimal 21356812
12 Duodecimal 719b324
16 Hexadecimal 145e10c
20 Vigesimal 6d9c0c
36 Base36 cpr0s

Cryptographic Hash Functions

md5 064b705b2a32c03c8805ce5fa8cfc522
sha1 72e96506a64d160abbfde698b4efff7ea55c6332
sha256 9633f84bddc911cddd1d04ca465c4134172aed496b67748b312da9012225d221
sha512 4fd932bda5165a47ead4610effad759a4d976aae708256659028aab99043d21d53ae4ad8080395055331366bcb8ed2fe8d713a039d829691eb51dcfca3c474d1
ripemd-160 f63e26399d0e710f6fd8a4272bf97d0eec39cb0b

21356812 as geometric shapes

Circle

Radius = n
Diameter 42713624
Circumference 134188807.3666
Area 1.4329225657163E+15

Sphere

Radius = n
Volume 4.0803543795415E+22
Surface area 5.7316902628652E+15
Circumference 134188807.3666

Square

Length = n
Perimeter 85427248
Area 456113418803344
Diagonal 30203093.179452

Cube

Length = n
Surface area 2736680512820064
Volume 9.7411285360603E+21
Space diagonal 36991083.471697

Equilateral Triangle

Length = n
Perimeter 64070436
Area 1.9750290384533E+14
Altitude 18495541.735848

Triangular Pyramid

Length = n
Surface area 1.9750290384533E+14
Volume 1.1480030073763E+21
Height 10067697.726484