19997939 (number)

19997939 is an odd 8-digits composite number following 19997938 and preceding 19997940. In scientific notation, it is written as 1.9997939 × 10^7. The sum of its digits is 56. It has a total of 4 prime factors and 12 positive divisors. There are 18345600 positive integers (up to 19997939) that are relatively prime to 19997939.

Interesting facts

Basic properties

Name

Name nineteen million nine hundred ninety-seven thousand nine hundred thirty-nine

Notation

Scientific notation 1.9997939 × 10^7
Engineering notation 1.9997939 × 10^6

Prime Factorization of 19997939

Prime Factorization 13 × 13 × 491 × 241

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1538303
Product of the distinct prime numbers

The prime factorization of 19997939 is 13 × 13 × 491 × 241. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 7, 94, 81, 940, 431, 6806, 8521, 32781, 82569, 94637, 706159, 9304458, 8296016, 59532351, 37816864, 94256363, 821325204, 3868295417, 5277223881

Basic calculations (n = 19997939)

Multiplication

n×y
n×2 39995878
n×3 59993817
n×4 79991756
n×5 99989695

Division

n÷y
n÷2 9998969.5
n÷3 6665979.6666667
n÷3 4999484.75
n÷5 3999587.8

Exponentiation

ny
n2 399917564247721
n3 7.9975270548545E+21
n4 1.5993405819383E+29
n5 3.1983515397827E+36

Nth Root

y√n
2√n 4471.9055222578
3√n 271.43243731468
4√n 66.87230758885
5√n 28.853403412729

Divisors of 19997939

1, 13, 169, 241, 491, 3133, 6383, 40729, 82979, 118331, 1538303, 19997939

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 -19997938
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 19997939 can be divided by 12 positive divisors. The sum of these divisors (counting 19997939) is 1, the average is 0.083333333333333.

Base conversion 19997939

Base System Value
2 Binary 1001100010010010011110011
3 Ternary 1101122000000102
4 Quaternary 1030102103303
5 Quinary 20104413224
6 Senary 1552343015
8 Octal 114222363
10 Decimal 19997939
12 Duodecimal 6844a6b
16 Hexadecimal 13124f3
20 Vigesimal 64jegj
36 Base36 bwmib

Cryptographic Hash Functions

md5 65e77077a3467d8ecd107768b45ca3be
sha1 851d44fc753caf7eaba5928b2a8d15ad3c5a250c
sha256 9a3367c9fde8aac2aed0d6ee21ae1fb3bf7e5e850695ad9ce8d312cceaece01c
sha512 78acc260b875be27813202a6f5a0ac776072aa86de54011b67c63cf5d3eafb27ec74713d58d722d0de05590a20cdde17338f94bd9d2afa48704f9940c1e9f3a2
ripemd-160 d9d818e0a0c138b01b6f0ab2a33a0baf43812d09

19997939 as geometric shapes

Circle

Radius = n
Diameter 39995878
Circumference 125650756.49867
Area 1.2563780818822E+15

Sphere

Radius = n
Volume 3.3499962989889E+22
Surface area 5.0255123275287E+15
Circumference 125650756.49867

Square

Length = n
Perimeter 79991756
Area 399917564247721
Diagonal 28281356.55331

Cube

Length = n
Surface area 2399505385486326
Volume 7.9975270548545E+21
Space diagonal 34637446.394663

Equilateral Triangle

Length = n
Perimeter 59993817
Area 1.7316938502906E+14
Altitude 17318723.197332

Triangular Pyramid

Length = n
Surface area 1.7316938502906E+14
Volume 9.4251760220175E+20
Height 9427118.8511033