19809940 (number)

19809940 is an even 8-digits composite number following 19809939 and preceding 19809941. In scientific notation, it is written as 1.9809940 × 10^7. The sum of its digits is 40. It has a total of 4 prime factors and 12 positive divisors. There are 7923968 positive integers (up to 19809940) that are relatively prime to 19809940.

Interesting facts

Basic properties

Name

Name nineteen million eight hundred nine thousand nine hundred forty

Notation

Scientific notation 1.9809940 × 10^7
Engineering notation 1.9809940 × 10^6

Prime Factorization of 19809940

Prime Factorization 2 × 2 × 5 × 990497

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 9904970
Product of the distinct prime numbers

The prime factorization of 19809940 is 2 × 2 × 5 × 990497. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 6, 63, 63, 65, 54, 3877, 6440, 72131, 60689, 265519, 574669, 2253086, 7093113, 90901688, 48709916, 457255741, 856032234, 7338290932, 5854623483

Basic calculations (n = 19809940)

Multiplication

n×y
n×2 39619880
n×3 59429820
n×4 79239760
n×5 99049700

Division

n÷y
n÷2 9904970
n÷3 6603313.3333333
n÷3 4952485
n÷5 3961988

Exponentiation

ny
n2 392433722803600
n3 7.7740885027159E+21
n4 1.5400422679349E+29
n5 3.0508144925255E+36

Nth Root

y√n
2√n 4450.8358765517
3√n 270.57918649083
4√n 66.714585186088
5√n 28.798948555313

Divisors of 19809940

1, 2, 4, 5, 10, 20, 990497, 1980994, 3961988, 4952485, 9904970, 19809940

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 -19809939
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 19809940 can be divided by 12 positive divisors. The sum of these divisors (counting 19809940) is 1, the average is 0.083333333333333.

Base conversion 19809940

Base System Value
2 Binary 1001011100100011010010100
3 Ternary 1101021110010111
4 Quaternary 1023210122110
5 Quinary 20032404230
6 Senary 1544332404
8 Octal 113443224
10 Decimal 19809940
12 Duodecimal 6774104
16 Hexadecimal 12e4694
20 Vigesimal 63g4h0
36 Base36 bslg4

Cryptographic Hash Functions

md5 65f403e3ea88b2cd5e82f4a77f222be5
sha1 308787e39712d5e122f1aab3ea27d96cdce4765a
sha256 0573ea3a89734ec6dea8587c2d338b77d7479de9e28786674c2dfdef71197596
sha512 d7dfae863e4f8f231c38e5d04d645f9d3c74f28e8c1d16ca48bfead35546cf81f9de304e42dd25eeae0a6fe651fb80195134436f3d6aa43c54fab4d3d941e043
ripemd-160 3077a6dfaa314f8bc8a3c8b9c2aafcd68dcfec2a

19809940 as geometric shapes

Circle

Radius = n
Diameter 39619880
Circumference 124469523.94411
Area 1.2328669005807E+15

Sphere

Radius = n
Volume 3.2564025771319E+22
Surface area 4.9314676023227E+15
Circumference 124469523.94411

Square

Length = n
Perimeter 79239760
Area 392433722803600
Diagonal 28015485.817797

Cube

Length = n
Surface area 2354602336821600
Volume 7.7740885027159E+21
Space diagonal 34311822.574891

Equilateral Triangle

Length = n
Perimeter 59429820
Area 1.6992878662481E+14
Altitude 17155911.287446

Triangular Pyramid

Length = n
Surface area 1.6992878662481E+14
Volume 9.1618511630247E+20
Height 9338495.2725991