21721854 (number)

21721854 is an even 8-digits composite number following 21721853 and preceding 21721855. In scientific notation, it is written as 2.1721854 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 5641920 positive integers (up to 21721854) that are relatively prime to 21721854.

Interesting facts

Basic properties

Name

Name twenty-one million seven hundred twenty-one thousand eight hundred fifty-four

Notation

Scientific notation 2.1721854 × 10^7
Engineering notation 2.1721854 × 10^6

Prime Factorization of 21721854

Prime Factorization 2 × 21 × 11 × 47017

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21721854
Product of the distinct prime numbers

The prime factorization of 21721854 is 2 × 21 × 11 × 47017. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 10, 70, 62, 928, 601, 9292, 8640, 60132, 13871, 466637, 56142, 5605313, 3389738, 16492850, 25741428, 175348146, 828258892, 9713120757, 1767660855

Basic calculations (n = 21721854)

Multiplication

n×y
n×2 43443708
n×3 65165562
n×4 86887416
n×5 108609270

Division

n÷y
n÷2 10860927
n÷3 7240618
n÷3 5430463.5
n÷5 4344370.8

Exponentiation

ny
n2 471838941197316
n3 1.0249216592203E+22
n4 2.226319864302E+29
n5 4.8359795049669E+36

Nth Root

y√n
2√n 4660.6709817364
3√n 279.01804844638
4√n 68.269107081728
5√n 29.334546464541

Divisors of 21721854

1, 2, 11, 21, 22, 42, 231, 462, 47017, 94034, 517187, 987357, 1034374, 1974714, 10860927, 21721854

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21721853
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21721854 can be divided by 16 positive divisors. The sum of these divisors (counting 21721854) is 1, the average is 0.0625.

Base conversion 21721854

Base System Value
2 Binary 1010010110111001011111110
3 Ternary 1111212120210010
4 Quaternary 1102313023332
5 Quinary 21030044404
6 Senary 2053324050
8 Octal 122671376
10 Decimal 21721854
12 Duodecimal 7336626
16 Hexadecimal 14b72fe
20 Vigesimal 6ff4ce
36 Base36 cxkou

Cryptographic Hash Functions

md5 858bd0e62254bfbdc24a4c1df4f275aa
sha1 0d268fd97bf112479fa521484dd21776dc590765
sha256 39a7a369bb7488724c350aaf66ee0b35d41b490de072167a9d4f29cddc743e52
sha512 6447978847ff593aadc13933d3cf886db5660d98465f5bbab5074ab58f441c4ccb9adef4b225519db288768f3de30da7318cd57de568d842bdb5952dd6838330
ripemd-160 2a95953b53d313c041cd7ce4794271cccf066ce8

21721854 as geometric shapes

Circle

Radius = n
Diameter 43443708
Circumference 136482433.8975
Area 1.4823257513431E+15

Sphere

Radius = n
Volume 4.2931818068153E+22
Surface area 5.9293030053723E+15
Circumference 136482433.8975

Square

Length = n
Perimeter 86887416
Area 471838941197316
Diagonal 30719340.526688

Cube

Length = n
Surface area 2831033647183896
Volume 1.0249216592203E+22
Space diagonal 37623354.762593

Equilateral Triangle

Length = n
Perimeter 65165562
Area 2.0431225478581E+14
Altitude 18811677.381297

Triangular Pyramid

Length = n
Surface area 2.0431225478581E+14
Volume 1.2078817590327E+21
Height 10239780.175563