21007906 (number)

21007906 is an even 8-digits composite number following 21007905 and preceding 21007907. In scientific notation, it is written as 2.1007906 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors. There are 10301760 positive integers (up to 21007906) that are relatively prime to 21007906.

Interesting facts

Basic properties

Name

Name twenty-one million seven thousand nine hundred six

Notation

Scientific notation 2.1007906 × 10^7
Engineering notation 2.1007906 × 10^6

Prime Factorization of 21007906

Prime Factorization 2 × 71 × 337 × 439

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21007906
Product of the distinct prime numbers

The prime factorization of 21007906 is 2 × 71 × 337 × 439. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 3, 52, 81, 324, 305, 6499, 3545, 81021, 40487, 531535, 568178, 2464291, 6787316, 25829157, 26298468, 983429157, 413838738, 9624394568, 6055313873

Basic calculations (n = 21007906)

Multiplication

n×y
n×2 42015812
n×3 63023718
n×4 84031624
n×5 105039530

Division

n÷y
n÷2 10503953
n÷3 7002635.3333333
n÷3 5251976.5
n÷5 4201581.2

Exponentiation

ny
n2 441332114504836
n3 9.2714635762988E+21
n4 1.9477403529331E+29
n5 4.0917946246825E+36

Nth Root

y√n
2√n 4583.4382291027
3√n 275.92703560299
4√n 67.701094740799
5√n 29.139128127887

Divisors of 21007906

1, 2, 71, 142, 337, 439, 674, 878, 23927, 31169, 47854, 62338, 147943, 295886, 10503953, 21007906

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 -21007905
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 21007906 can be divided by 16 positive divisors. The sum of these divisors (counting 21007906) is 1, the average is 0.0625.

Base conversion 21007906

Base System Value
2 Binary 1010000001000111000100010
3 Ternary 1110112022102121
4 Quaternary 1100020320202
5 Quinary 20334223111
6 Senary 2030134454
8 Octal 120107042
10 Decimal 21007906
12 Duodecimal 705142a
16 Hexadecimal 1408e22
20 Vigesimal 6b5jf6
36 Base36 ci9sy

Cryptographic Hash Functions

md5 dc3d969086f7bd131784b51c12dda067
sha1 9ef264c5eacf09d1ebfa125f2db0212d0d8d75e3
sha256 ec8c0df41b4327b936459ea89a2a2852b99c5e25d9f8b4a5980e8b988996ac11
sha512 9625fc46fdb008a28e87a278dd8453aff1b1281e34d15e3675f838301eb6d40107d71c09324fca25c1e9c52f30784059ac96b62734323743ada147de7108525f
ripemd-160 c635236eca385822e320985757c14f83bd64930c

21007906 as geometric shapes

Circle

Radius = n
Diameter 42015812
Circumference 131996566.31381
Area 1.3864857287216E+15

Sphere

Radius = n
Volume 3.8836215812434E+22
Surface area 5.5459429148866E+15
Circumference 131996566.31381

Square

Length = n
Perimeter 84031624
Area 441332114504836
Diagonal 29709665.582259

Cube

Length = n
Surface area 2647992687029016
Volume 9.2714635762988E+21
Space diagonal 36386760.552631

Equilateral Triangle

Length = n
Perimeter 63023718
Area 1.9110241133355E+14
Altitude 18193380.276316

Triangular Pyramid

Length = n
Surface area 1.9110241133355E+14
Volume 1.0926524610542E+21
Height 9903221.860753