19981391 (number)

19981391 is an odd 8-digits composite number following 19981390 and preceding 19981392. In scientific notation, it is written as 1.9981391 × 10^7. The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors. There are 18532800 positive integers (up to 19981391) that are relatively prime to 19981391.

Interesting facts

Basic properties

Name

Name nineteen million nine hundred eighty-one thousand three hundred ninety-one

Notation

Scientific notation 1.9981391 × 10^7
Engineering notation 1.9981391 × 10^6

Prime Factorization of 19981391

Prime Factorization 79 × 41 × 31 × 199

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 19981391
Product of the distinct prime numbers

The prime factorization of 19981391 is 79 × 41 × 31 × 199. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 5, 97, 42, 947, 593, 563, 5622, 91378, 38010, 243633, 313960, 7631713, 5437264, 92301620, 73371775, 466857205, 2549379, 8452696703, 8959642501

Basic calculations (n = 19981391)

Multiplication

n×y
n×2 39962782
n×3 59944173
n×4 79925564
n×5 99906955

Division

n÷y
n÷2 9990695.5
n÷3 6660463.6666667
n÷3 4995347.75
n÷5 3996278.2

Exponentiation

ny
n2 399255986294881
n3 7.9776899712487E+21
n4 1.594053425923E+29
n5 3.1851404778257E+36

Nth Root

y√n
2√n 4470.0549213628
3√n 271.3575478728
4√n 66.858469331587
5√n 28.84862667812

Divisors of 19981391

1, 31, 41, 79, 199, 1271, 2449, 3239, 6169, 8159, 15721, 100409, 252929, 487351, 644561, 19981391

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 -19981390
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 19981391 can be divided by 16 positive divisors. The sum of these divisors (counting 19981391) is 1, the average is 0.0625.

Base conversion 19981391

Base System Value
2 Binary 1001100001110010001001111
3 Ternary 1101121011022112
4 Quaternary 1030032101033
5 Quinary 20103401031
6 Senary 1552134235
8 Octal 114162117
10 Decimal 19981391
12 Duodecimal 683737b
16 Hexadecimal 130e44f
20 Vigesimal 64hd9b
36 Base36 bw9qn

Cryptographic Hash Functions

md5 493268eeb3de0d78b1f23aea34b47da2
sha1 9f2c11c24996730ea68fc05c1f7e7a5b0ef09f17
sha256 5db95815f3e27c910307e637cb09ca54a0fb3a18d4507ab6141fec535acc745b
sha512 11f11e3d48e1ab1e7edfa315c8b997b2426404f4e89041c253ba1416c820739f9e4eafd36b8a68439e527f73a8f6e141d594fc41a47e6f3a93eaa3ef85cbf375
ripemd-160 1821ad220f1c7a64852030a7af0008906d54fa50

19981391 as geometric shapes

Circle

Radius = n
Diameter 39962782
Circumference 125546782.34821
Area 1.2542996734457E+15

Sphere

Radius = n
Volume 3.3416869608389E+22
Surface area 5.017198693783E+15
Circumference 125546782.34821

Square

Length = n
Perimeter 79925564
Area 399255986294881
Diagonal 28257954.14728

Cube

Length = n
Surface area 2395535917769286
Volume 7.9776899712487E+21
Space diagonal 34608784.417899

Equilateral Triangle

Length = n
Perimeter 59944173
Area 1.7288291337219E+14
Altitude 17304392.20895

Triangular Pyramid

Length = n
Surface area 1.7288291337219E+14
Volume 9.4017977947897E+20
Height 9419318.0490932