19981668 (number)

19981668 is an even 8-digits composite number following 19981667 and preceding 19981669. In scientific notation, it is written as 1.9981668 × 10^7. The sum of its digits is 48. It has a total of 5 prime factors and 24 positive divisors. There are 5709024 positive integers (up to 19981668) that are relatively prime to 19981668.

Interesting facts

Basic properties

Name

Name nineteen million nine hundred eighty-one thousand six hundred sixty-eight

Notation

Scientific notation 1.9981668 × 10^7
Engineering notation 1.9981668 × 10^6

Prime Factorization of 19981668

Prime Factorization 2 × 2 × 3 × 7 × 237877

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 9990834
Product of the distinct prime numbers

The prime factorization of 19981668 is 2 × 2 × 3 × 7 × 237877. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 8, 21, 37, 951, 197, 8553, 302, 93960, 646, 444583, 751286, 4721660, 8535046, 10752999, 60163763, 785474383, 487269858, 8333315331, 7010820289

Basic calculations (n = 19981668)

Multiplication

n×y
n×2 39963336
n×3 59945004
n×4 79926672
n×5 99908340

Division

n÷y
n÷2 9990834
n÷3 6660556
n÷3 4995417
n÷5 3996333.6

Exponentiation

ny
n2 399267056062224
n3 7.9780217575727E+21
n4 1.594141820566E+29
n5 3.1853612603464E+36

Nth Root

y√n
2√n 4470.0859052148
3√n 271.35880180108
4√n 66.85870104343
5√n 28.848706662794

Divisors of 19981668

1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 237877, 475754, 713631, 951508, 1427262, 1665139, 2854524, 3330278, 4995417, 6660556, 9990834, 19981668

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 -19981667
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 19981668 can be divided by 24 positive divisors. The sum of these divisors (counting 19981668) is 1, the average is 0.041666666666667.

Base conversion 19981668

Base System Value
2 Binary 1001100001110010101100100
3 Ternary 1101121011200210
4 Quaternary 1030032111210
5 Quinary 20103403133
6 Senary 1552135420
8 Octal 114162544
10 Decimal 19981668
12 Duodecimal 6837570
16 Hexadecimal 130e564
20 Vigesimal 64he38
36 Base36 bw9yc

Cryptographic Hash Functions

md5 1a252a4354eead6dc430733173f58d34
sha1 0bf9a79df5465ef30ff42403cf7e127e80c6f97e
sha256 447086c02895e6f94c0058fefaacaaa3b653eabf474f114e074771adbef487c7
sha512 0b55d8ac53582efa56aa2f3d1d50dd7f9c05778636f9c55e55b38c1b1d5e0613da9dce29b69c8cdd8064e4011c022251dfb23492431bd0791ab3d0b248acdd08
ripemd-160 da47287ebc238837b34292c4595d7b948e96c69f

19981668 as geometric shapes

Circle

Radius = n
Diameter 39963336
Circumference 125548522.79054
Area 1.2543344501455E+15

Sphere

Radius = n
Volume 3.3418259391693E+22
Surface area 5.017337800582E+15
Circumference 125548522.79054

Square

Length = n
Perimeter 79926672
Area 399267056062224
Diagonal 28258345.884436

Cube

Length = n
Surface area 2395602336373344
Volume 7.9780217575727E+21
Space diagonal 34609264.195973

Equilateral Triangle

Length = n
Perimeter 59945004
Area 1.7288770672206E+14
Altitude 17304632.097987

Triangular Pyramid

Length = n
Surface area 1.7288770672206E+14
Volume 9.4021888087225E+20
Height 9419448.6281455