21992 (number)

21992 is an even 5-digits composite number following 21991 and preceding 21993. In scientific notation, it is written as 2.1992 × 10^4. The sum of its digits is 23. It has a total of 4 prime factors and 8 positive divisors. There are 10992 positive integers (up to 21992) that are relatively prime to 21992.

Interesting facts

Basic properties

Name

Name twenty-one thousand nine hundred ninety-two

Notation

Scientific notation 2.1992 × 10^4
Engineering notation 2.1992 × 10^3

Prime Factorization of 21992

Prime Factorization 2 × 2 × 2 × 2749

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 5498
Product of the distinct prime numbers

The prime factorization of 21992 is 2 × 2 × 2 × 2749. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 8, 28, 65, 878, 895, 4428, 9120, 58916, 51183, 192089, 698615, 8660720, 5082750, 53582811, 74076593, 535961482, 140393301, 3151739258, 7143007671

Basic calculations (n = 21992)

Multiplication

n×y
n×2 43984
n×3 65976
n×4 87968
n×5 109960

Division

n÷y
n÷2 10996
n÷3 7330.6666666667
n÷3 5498
n÷5 4398.4

Exponentiation

ny
n2 483648064
n3 10636388223488
n4 233915449810948096
n5 5.1442685722424E+21

Nth Root

y√n
2√n 148.29699929533
3√n 28.016996483475
4√n 12.177725538676
5√n 7.3867422530261

Divisors of 21992

1, 2, 4, 8, 2749, 5498, 10996, 21992

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21991
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21992 can be divided by 8 positive divisors. The sum of these divisors (counting 21992) is 1, the average is 0.125.

Base conversion 21992

Base System Value
2 Binary 101010111101000
3 Ternary 1010011112
4 Quaternary 11113220
5 Quinary 1200432
6 Senary 245452
8 Octal 52750
10 Decimal 21992
12 Duodecimal 10888
16 Hexadecimal 55e8
20 Vigesimal 2ejc
36 Base36 gyw

Cryptographic Hash Functions

md5 71541653edfd81ee0ae62fb1fd1be011
sha1 083d6ca4af24ec33b93ac28b804cbd3977700c5b
sha256 36bae2954ec4757fa32a609e038bde95af18f473e4aca3d224376b9544fc2a3d
sha512 e93780098b6fdb519ad4157cbef4b48c118de072eeddb18fac0a698e514d3ebe7101277dfd1a521303049124b2022b9803a5ba6de7491b1796beccb9a62c5126
ripemd-160 06f7e3da2fcd9e7469a3d0a0cac70abc8d6a6beb

21992 as geometric shapes

Circle

Radius = n
Diameter 43984
Circumference 138179.81127549
Area 1519425204.7853

Sphere

Radius = n
Volume 44553598804852
Surface area 6077700819.1413
Circumference 138179.81127549

Square

Length = n
Perimeter 87968
Area 483648064
Diagonal 31101.384663709

Cube

Length = n
Surface area 2901888384
Volume 10636388223488
Space diagonal 38091.261360055

Equilateral Triangle

Length = n
Perimeter 65976
Area 209425754.95758
Altitude 19045.630680027

Triangular Pyramid

Length = n
Surface area 209425754.95758
Volume 1253510373360.2
Height 10367.128221236