21105857 (number)

21105857 is an odd 8-digits composite number following 21105856 and preceding 21105858. In scientific notation, it is written as 2.1105857 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 19130880 positive integers (up to 21105857) that are relatively prime to 21105857.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1105857 × 10^7
Engineering notation 2.1105857 × 10^6

Prime Factorization of 21105857

Prime Factorization 17 × 107 × 41 × 283

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21105857
Product of the distinct prime numbers

The prime factorization of 21105857 is 17 × 107 × 41 × 283. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 7, 5, 11, 601, 579, 9150, 1686, 36590, 39065, 84618, 10566, 5835268, 7949846, 53299822, 34273673, 638667824, 383972864, 4175881230, 1064048397

Basic calculations (n = 21105857)

Multiplication

n×y
n×2 42211714
n×3 63317571
n×4 84423428
n×5 105529285

Division

n÷y
n÷2 10552928.5
n÷3 7035285.6666667
n÷3 5276464.25
n÷5 4221171.4

Exponentiation

ny
n2 445457199704449
n3 9.4017559565825E+21
n4 1.9843211676853E+29
n5 4.1880798807239E+36

Nth Root

y√n
2√n 4594.1111218602
3√n 276.35521459203
4√n 67.779872542372
5√n 29.166250282738

Divisors of 21105857

1, 17, 41, 107, 283, 697, 1819, 4387, 4811, 11603, 30281, 74579, 197251, 514777, 1241521, 21105857

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 -21105856
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 21105857 can be divided by 16 positive divisors. The sum of these divisors (counting 21105857) is 1, the average is 0.0625.

Base conversion 21105857

Base System Value
2 Binary 1010000100000110011000001
3 Ternary 1110201021210102
4 Quaternary 1100200303001
5 Quinary 20400341412
6 Senary 2032212145
8 Octal 120406301
10 Decimal 21105857
12 Duodecimal 709a055
16 Hexadecimal 1420cc1
20 Vigesimal 6bi4ch
36 Base36 ckddt

Cryptographic Hash Functions

md5 510273841f14c115cd4e645b421df36e
sha1 c6f4e48a790e08c269dde01ecd0176002c52d914
sha256 0fd8d5a74e328bcb5b9a1c68f3b88bc50428d261d91d8c6d10004b7c10ddef0a
sha512 9cfad5a2d1fb89242b583a9f2c9ddd9fd2aa2e6c2fca88fda195504fe5334a3863667b6e49dde68a368b7e5c9efda910dfc5e86e3586ed7044b73e65c8f1cebe
ripemd-160 f28489f9d0630152a8f8a6b8de451cad7349f375

21105857 as geometric shapes

Circle

Radius = n
Diameter 42211714
Circumference 132612010.59783
Area 1.3994450660802E+15

Sphere

Radius = n
Volume 3.9381983258725E+22
Surface area 5.5977802643207E+15
Circumference 132612010.59783

Square

Length = n
Perimeter 84423428
Area 445457199704449
Diagonal 29848189.214907

Cube

Length = n
Surface area 2672743198226694
Volume 9.4017559565825E+21
Space diagonal 36556416.661283

Equilateral Triangle

Length = n
Perimeter 63317571
Area 1.9288862562137E+14
Altitude 18278208.330642

Triangular Pyramid

Length = n
Surface area 1.9288862562137E+14
Volume 1.1080075653268E+21
Height 9949396.404969