19987980 (number)

19987980 is an even 8-digits composite number following 19987979 and preceding 19987981. In scientific notation, it is written as 1.9987980 × 10^7. The sum of its digits is 51. It has a total of 5 prime factors and 24 positive divisors. There are 5287360 positive integers (up to 19987980) that are relatively prime to 19987980.

Interesting facts

Basic properties

Name

Name nineteen million nine hundred eighty-seven thousand nine hundred eighty

Notation

Scientific notation 1.9987980 × 10^7
Engineering notation 1.9987980 × 10^6

Prime Factorization of 19987980

Prime Factorization 2 × 2 × 393 × 5 × 2543

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 9993990
Product of the distinct prime numbers

The prime factorization of 19987980 is 2 × 2 × 393 × 5 × 2543. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 1, 41, 63, 359, 622, 2460, 1922, 53004, 18109, 213989, 341999, 7276674, 3485644, 16313345, 74004802, 334619891, 352225933, 7889233379, 1514930466

Basic calculations (n = 19987980)

Multiplication

n×y
n×2 39975960
n×3 59963940
n×4 79951920
n×5 99939900

Division

n÷y
n÷2 9993990
n÷3 6662660
n÷3 4996995
n÷5 3997596

Exponentiation

ny
n2 399519344480400
n3 7.9855846670873E+21
n4 1.5961570661405E+29
n5 3.1903955514875E+36

Nth Root

y√n
2√n 4470.7918761669
3√n 271.38737192904
4√n 66.863980409238
5√n 28.850529033502

Divisors of 19987980

1, 2, 4, 5, 10, 20, 393, 786, 1572, 1965, 2543, 3930, 5086, 7860, 10172, 12715, 25430, 50860, 999399, 1998798, 3997596, 4996995, 9993990, 19987980

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -19987979
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 19987980 can be divided by 24 positive divisors. The sum of these divisors (counting 19987980) is 1, the average is 0.041666666666667.

Base conversion 19987980

Base System Value
2 Binary 1001100001111111000001100
3 Ternary 1101121111100120
4 Quaternary 1030033320030
5 Quinary 20104103410
6 Senary 1552224540
8 Octal 114177014
10 Decimal 19987980
12 Duodecimal 683b150
16 Hexadecimal 130fe0c
20 Vigesimal 64i9j0
36 Base36 bweto

Cryptographic Hash Functions

md5 63ca1be011697ffdd03b15eb4d6be41a
sha1 3f4f9a8e37fece44ad8c01109170dd6ab28ea748
sha256 5daa64cbfe82ed6037e6364143255258e5764e9cf4de2ecebba04e5ec71cb694
sha512 842322a8183dfa5e3ad94ead01e0dcbc8f40474b481305b1890fec78fc2762ae1272623d1770a4ca3c356d8cefd0dbde4c3e1c2f257d9234e386bb62bdc4990a
ripemd-160 3ed0d517c33806aaa39771f5c507d4854b8321f6

19987980 as geometric shapes

Circle

Radius = n
Diameter 39975960
Circumference 125588182.2562
Area 1.2551270375866E+15

Sphere

Radius = n
Volume 3.3449938832988E+22
Surface area 5.0205081503465E+15
Circumference 125588182.2562

Square

Length = n
Perimeter 79951920
Area 399519344480400
Diagonal 28267272.400442

Cube

Length = n
Surface area 2397116066882400
Volume 7.9855846670873E+21
Space diagonal 34620196.900671

Equilateral Triangle

Length = n
Perimeter 59963940
Area 1.7299695081167E+14
Altitude 17310098.450335

Triangular Pyramid

Length = n
Surface area 1.7299695081167E+14
Volume 9.4111017830613E+20
Height 9422424.1334807