21001906 (number)

21001906 is an even 8-digits composite number following 21001905 and preceding 21001907. In scientific notation, it is written as 2.1001906 × 10^7. The sum of its digits is 19. It has a total of 4 prime factors and 16 positive divisors. There are 10333008 positive integers (up to 21001906) that are relatively prime to 21001906.

Interesting facts

Basic properties

Name

Name twenty-one million one thousand nine hundred six

Notation

Scientific notation 2.1001906 × 10^7
Engineering notation 2.1001906 × 10^6

Prime Factorization of 21001906

Prime Factorization 2 × 379 × 103 × 269

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21001906
Product of the distinct prime numbers

The prime factorization of 21001906 is 2 × 379 × 103 × 269. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 2, 60, 82, 776, 903, 3638, 6037, 23094, 10248, 475770, 606302, 1478658, 7805049, 99980288, 72362612, 908567642, 621973556, 8119744174, 8401787870

Basic calculations (n = 21001906)

Multiplication

n×y
n×2 42003812
n×3 63005718
n×4 84007624
n×5 105009530

Division

n÷y
n÷2 10500953
n÷3 7000635.3333333
n÷3 5250476.5
n÷5 4200381.2

Exponentiation

ny
n2 441080055632836
n3 9.2635218668756E+21
n4 1.9455161547707E+29
n5 4.0859547403975E+36

Nth Root

y√n
2√n 4582.7836518867
3√n 275.90076422604
4√n 67.696260250376
5√n 29.137463471298

Divisors of 21001906

1, 2, 103, 206, 269, 379, 538, 758, 27707, 39037, 55414, 78074, 101951, 203902, 10500953, 21001906

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 -21001905
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 21001906 can be divided by 16 positive divisors. The sum of these divisors (counting 21001906) is 1, the average is 0.0625.

Base conversion 21001906

Base System Value
2 Binary 1010000000111011010110010
3 Ternary 1110112000012101
4 Quaternary 1100013122302
5 Quinary 20334030111
6 Senary 2030051014
8 Octal 120073262
10 Decimal 21001906
12 Duodecimal 7049a6a
16 Hexadecimal 14076b2
20 Vigesimal 6b54f6
36 Base36 ci56a

Cryptographic Hash Functions

md5 1ee36f5b6279c176ca38bbed73092b3f
sha1 0d14d0ab2ba2b5bc5c622e8ef61da09ce6d5395b
sha256 e7ea90c130f9d252fbc7ac182ca84eea186f14463a68ce393cdaef92ae648421
sha512 29ef044f2aa8e9e82cb94cff57f9a1e0890f9f5f4cf069bac3046c7e2bbfc67c0868448ddfe0a2a5b4409b692f2c66a91f424f656f91ede28110dbce8515c1c3
ripemd-160 01ed02f76cfd1d3ed25c90af592d4fff5de3f5ec

21001906 as geometric shapes

Circle

Radius = n
Diameter 42003812
Circumference 131958867.20197
Area 1.3856938624211E+15

Sphere

Radius = n
Volume 3.8802949657793E+22
Surface area 5.5427754496844E+15
Circumference 131958867.20197

Square

Length = n
Perimeter 84007624
Area 441080055632836
Diagonal 29701180.300885

Cube

Length = n
Surface area 2646480333797016
Volume 9.2635218668756E+21
Space diagonal 36376368.247786

Equilateral Triangle

Length = n
Perimeter 63005718
Area 1.9099326664034E+14
Altitude 18188184.123893

Triangular Pyramid

Length = n
Surface area 1.9099326664034E+14
Volume 1.0917165216229E+21
Height 9900393.4336283