21709905 (number)

21709905 is an odd 8-digits composite number following 21709904 and preceding 21709906. In scientific notation, it is written as 2.1709905 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 9865152 positive integers (up to 21709905) that are relatively prime to 21709905.

Interesting facts

Basic properties

Name

Name twenty-one million seven hundred nine thousand nine hundred five

Notation

Scientific notation 2.1709905 × 10^7
Engineering notation 2.1709905 × 10^6

Prime Factorization of 21709905

Prime Factorization 21 × 5 × 199 × 1039

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21709905
Product of the distinct prime numbers

The prime factorization of 21709905 is 21 × 5 × 199 × 1039. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 3, 40, 40, 377, 142, 7787, 1464, 51272, 76785, 599720, 810651, 6678548, 5279995, 28999828, 68040830, 252330505, 113521942, 716857173, 7657048588

Basic calculations (n = 21709905)

Multiplication

n×y
n×2 43419810
n×3 65129715
n×4 86839620
n×5 108549525

Division

n÷y
n÷2 10854952.5
n÷3 7236635
n÷3 5427476.25
n÷5 4341981

Exponentiation

ny
n2 471319975109025
n3 1.0232311884219E+22
n4 2.2214251893677E+29
n5 4.822692982578E+36

Nth Root

y√n
2√n 4659.3889084299
3√n 278.96687727441
4√n 68.259716586212
5√n 29.331318419199

Divisors of 21709905

1, 5, 21, 105, 199, 995, 1039, 4179, 5195, 20895, 21819, 109095, 206761, 1033805, 4341981, 21709905

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 -21709904
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 21709905 can be divided by 16 positive divisors. The sum of these divisors (counting 21709905) is 1, the average is 0.0625.

Base conversion 21709905

Base System Value
2 Binary 1010010110100010001010001
3 Ternary 1111211222101120
4 Quaternary 1102310101101
5 Quinary 21024204110
6 Senary 2053152453
8 Octal 122642121
10 Decimal 21709905
12 Duodecimal 732b729
16 Hexadecimal 14b4451
20 Vigesimal 6fdef5
36 Base36 cxbgx

Cryptographic Hash Functions

md5 75fb8e36e392d27f490cc6af61a439bc
sha1 e84d60c40ccd1008e9ebe5cd3090f7205d59c22e
sha256 b4930ba8acce2bddb438afb0f3f0e9794e4e98414e36e26f53c486eba191ecb6
sha512 a7f56e66684d0203167b89bdecdae21e9950e19da3a0593e67d5eecffddd4e341f0b537551a4692070e4c7254ae2e552772628581448f609bd5a563761b8c8b8
ripemd-160 aab2c82b5011ed7e3f878efa08c3724747bfabf1

21709905 as geometric shapes

Circle

Radius = n
Diameter 43419810
Circumference 136407356.11626
Area 1.4806953712926E+15

Sphere

Radius = n
Volume 4.2861007792937E+22
Surface area 5.9227814851705E+15
Circumference 136407356.11626

Square

Length = n
Perimeter 86839620
Area 471319975109025
Diagonal 30702442.088831

Cube

Length = n
Surface area 2827919850654150
Volume 1.0232311884219E+22
Space diagonal 37602658.487494

Equilateral Triangle

Length = n
Perimeter 65129715
Area 2.0408753587773E+14
Altitude 18801329.243747

Triangular Pyramid

Length = n
Surface area 2.0408753587773E+14
Volume 1.2058895200912E+21
Height 10234147.362944