21720908 (number)

21720908 is an even 8-digits composite number following 21720907 and preceding 21720909. In scientific notation, it is written as 2.1720908 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors. There are 9873120 positive integers (up to 21720908) that are relatively prime to 21720908.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1720908 × 10^7
Engineering notation 2.1720908 × 10^6

Prime Factorization of 21720908

Prime Factorization 2 × 2 × 11 × 493657

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10860454
Product of the distinct prime numbers

The prime factorization of 21720908 is 2 × 2 × 11 × 493657. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 3, 20, 56, 406, 480, 2499, 2690, 3211, 54476, 553128, 892377, 6268712, 8940953, 23098351, 99486849, 767563673, 718862154, 814272758, 217539788

Basic calculations (n = 21720908)

Multiplication

n×y
n×2 43441816
n×3 65162724
n×4 86883632
n×5 108604540

Division

n÷y
n÷2 10860454
n÷3 7240302.6666667
n÷3 5430227
n÷5 4344181.6

Exponentiation

ny
n2 471797844344464
n3 1.0247877571604E+22
n4 2.2259320592808E+29
n5 4.8349265473889E+36

Nth Root

y√n
2√n 4660.5694930985
3√n 279.01399791881
4√n 68.268363779268
5√n 29.334290952609

Divisors of 21720908

1, 2, 4, 11, 22, 44, 493657, 987314, 1974628, 5430227, 10860454, 21720908

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21720907
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21720908 can be divided by 12 positive divisors. The sum of these divisors (counting 21720908) is 1, the average is 0.083333333333333.

Base conversion 21720908

Base System Value
2 Binary 1010010110110111101001100
3 Ternary 1111212112111002
4 Quaternary 1102312331030
5 Quinary 21030032113
6 Senary 2053315432
8 Octal 122667514
10 Decimal 21720908
12 Duodecimal 7335b78
16 Hexadecimal 14b6f4c
20 Vigesimal 6ff258
36 Base36 cxjyk

Cryptographic Hash Functions

md5 62d43f9e1f66b0fee5ea096edd2f54b9
sha1 2c2bfc3739afc8d1df0fe831f9555f7ea8bd26b4
sha256 8eb6f9c0fc5d2ec53a5a9faee647cbaf4372f5cdd36c8359f020a1dd8cfd6f8a
sha512 cfb46af7662afb37632ffd97cd628db53c9a9adc3c2d10c9bc20e33283e701bf8d294805ca2e8407f697c7a8616854acdc05d93bde67b72a5030b33dddae93e8
ripemd-160 4cc2efab4cc1fc6aa2a7fa94e16c1a6a314a55cc

21720908 as geometric shapes

Circle

Radius = n
Diameter 43441816
Circumference 136476490.0042
Area 1.4821966417721E+15

Sphere

Radius = n
Volume 4.2926209191787E+22
Surface area 5.9287865670883E+15
Circumference 136476490.0042

Square

Length = n
Perimeter 86883632
Area 471797844344464
Diagonal 30718002.680658

Cube

Length = n
Surface area 2830787066066784
Volume 1.0247877571604E+22
Space diagonal 37621716.242529

Equilateral Triangle

Length = n
Perimeter 65162724
Area 2.0429445932652E+14
Altitude 18810858.121265

Triangular Pyramid

Length = n
Surface area 2.0429445932652E+14
Volume 1.2077239539418E+21
Height 10239334.226886