19998891 (number)

19998891 is an odd 8-digits composite number following 19998890 and preceding 19998892. In scientific notation, it is written as 1.9998891 × 10^7. The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors. There are 11592240 positive integers (up to 19998891) that are relatively prime to 19998891.

Interesting facts

Basic properties

Name

Name nineteen million nine hundred ninety-eight thousand eight hundred ninety-one

Notation

Scientific notation 1.9998891 × 10^7
Engineering notation 1.9998891 × 10^6

Prime Factorization of 19998891

Prime Factorization 3 × 33 × 23 × 8783

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 19998891
Product of the distinct prime numbers

The prime factorization of 19998891 is 3 × 33 × 23 × 8783. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 5, 89, 71, 921, 430, 2773, 948, 62793, 8127, 861094, 832452, 6557131, 711789, 43692652, 2210842, 194113464, 862293544, 7366841352, 8720001571

Basic calculations (n = 19998891)

Multiplication

n×y
n×2 39997782
n×3 59996673
n×4 79995564
n×5 99994455

Division

n÷y
n÷2 9999445.5
n÷3 6666297
n÷3 4999722.75
n÷5 3999778.2

Exponentiation

ny
n2 399955641229881
n3 7.9986692737915E+21
n4 1.5996451495161E+29
n5 3.199112898385E+36

Nth Root

y√n
2√n 4472.0119633114
3√n 271.43674441819
4√n 66.873103437117
5√n 28.853678120208

Divisors of 19998891

1, 3, 23, 33, 69, 99, 759, 2277, 8783, 26349, 202009, 289839, 606027, 869517, 6666297, 19998891

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 -19998890
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 19998891 can be divided by 16 positive divisors. The sum of these divisors (counting 19998891) is 1, the average is 0.0625.

Base conversion 19998891

Base System Value
2 Binary 1001100010010100010101011
3 Ternary 1101122001022200
4 Quaternary 1030102202223
5 Quinary 20104431031
6 Senary 1552351243
8 Octal 114224253
10 Decimal 19998891
12 Duodecimal 6845523
16 Hexadecimal 13128ab
20 Vigesimal 64jh4b
36 Base36 bwn8r

Cryptographic Hash Functions

md5 a9815d5a88dcd5c554fa6a8152d0ed58
sha1 b7a4958a874a31f70802c1e3598e9aa996fd213e
sha256 ab1584b33ec22162981363db13ab08355cda208ff45a3ec0f3fbd777f5b73d05
sha512 1e29cda6ab855964f0666ec313c56faf8af83b4b57f7b097d2bdf5f1272951d06e1dbf21b5f326b5337e8c38db681145cbc60bb3d3a4979949543b7f68f7572e
ripemd-160 4425c9b2617fdefa80862ac1ed30c967ddd2c34d

19998891 as geometric shapes

Circle

Radius = n
Diameter 39997782
Circumference 125656738.09109
Area 1.2564977042496E+15

Sphere

Radius = n
Volume 3.3504747505384E+22
Surface area 5.0259908169984E+15
Circumference 125656738.09109

Square

Length = n
Perimeter 79995564
Area 399955641229881
Diagonal 28282702.884621

Cube

Length = n
Surface area 2399733847379286
Volume 7.9986692737915E+21
Space diagonal 34639095.307032

Equilateral Triangle

Length = n
Perimeter 59996673
Area 1.7318587284599E+14
Altitude 17319547.653516

Triangular Pyramid

Length = n
Surface area 1.7318587284599E+14
Volume 9.4265221399441E+20
Height 9427567.6282071