21649 (number)

21649 is an odd 5-digits prime number following 21648 and preceding 21650. In scientific notation, it is written as 2.1649 × 10^4. The sum of its digits is 22. It has a total of 1 prime factors and 2 positive divisors. There are 21648 positive integers (up to 21649) that are relatively prime to 21649.

Interesting facts

Basic properties

Name

Name twenty-one thousand six hundred forty-nine

Notation

Scientific notation 2.1649 × 10^4
Engineering notation 2.1649 × 10^3

Prime Factorization of 21649

Prime Factorization 21649

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 21649
Product of the distinct prime numbers

The prime factorization of 21649 is 21649. Since it has a total of 1 prime factors.

Most popular turbo-numbers

8, 2, 86, 89, 776, 335, 9047, 3367, 81316, 50605, 312508, 602792, 8026195, 6793489, 65520450, 78377127, 937265668, 880076486, 9074579911, 3729301194

Basic calculations (n = 21649)

Multiplication

n×y
n×2 43298
n×3 64947
n×4 86596
n×5 108245

Division

n÷y
n÷2 10824.5
n÷3 7216.3333333333
n÷3 5412.25
n÷5 4329.8

Exponentiation

ny
n2 468679201
n3 10146436022449
n4 219660193449998401
n5 4.755423527999E+21

Nth Root

y√n
2√n 147.13599151805
3√n 27.870576157875
4√n 12.129962552211
5√n 7.3635555608612

Divisors of 21649

1, 21649

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 21650
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 10825
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 147.13938969562
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999076212471
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21649 can be divided by 2 positive divisors. The sum of these divisors (counting 21649) is 21650, the average is 10825.

Base conversion 21649

Base System Value
2 Binary 101010010010001
3 Ternary 1002200211
4 Quaternary 11102101
5 Quinary 1143044
6 Senary 244121
8 Octal 52221
10 Decimal 21649
12 Duodecimal 10641
16 Hexadecimal 5491
20 Vigesimal 2e29
36 Base36 gpd

Cryptographic Hash Functions

md5 3391f7714552ccfd36c887e27dee4842
sha1 447dc9d30d1a8711a597a9b2302b61b092118e40
sha256 17063311cd4209b8b95e0bded00af04853a388a2523161e6de274a66e55c3045
sha512 8475657d71922431e3ae78f13b7c79aae3554a6ad3ce3af6cd49c3e2f71a95b36e5a72c7b719783341ddb3aa4654b128721b8fc2e351426763ddecaf3426e4c7
ripemd-160 f15a38c4d6b2db83c5d09bcfa96afd12c52a36e1

21649 as geometric shapes

Circle

Radius = n
Diameter 43298
Circumference 136024.67871513
Area 1472399134.7519

Sphere

Radius = n
Volume 42501291824326
Surface area 5889596539.0077
Circumference 136024.67871513

Square

Length = n
Perimeter 86596
Area 468679201
Diagonal 30616.309411815

Cube

Length = n
Surface area 2812075206
Volume 10146436022449
Space diagonal 37497.167933059

Equilateral Triangle

Length = n
Perimeter 64947
Area 202944047.1457
Altitude 18748.583966529

Triangular Pyramid

Length = n
Surface area 202944047.1457
Volume 1195768952724.9
Height 10205.436470605