Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

18993891 (number)

18993891 is an odd 8-digits composite number following 18993890 and preceding 18993892. In scientific notation, it is written as 1.8993891 × 10^7. The sum of its digits is 48. It has a total of 4 prime factors and 12 positive divisors. There are 10616112 positive integers (up to 18993891) that are relatively prime to 18993891.

Interesting facts

18993891 has 12 divisors, whose sum is 20340320
The reverse of 18993891 is 19839981
Previous prime number is 107

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3

Name

Name	eighteen million nine hundred ninety-three thousand eight hundred ninety-one

Notation

Scientific notation	1.8993891 × 10^7
Engineering notation	1.8993891 × 10^6

Prime Factorization of 18993891

Prime Factorization 21 × 79 × 107 × 107

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	177513	Product of the distinct prime numbers

The prime factorization of 18993891 is 21 × 79 × 107 × 107. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 5, 44, 71, 661, 644, 419, 5428, 66819, 12157, 635416, 570092, 1807435, 3703289, 58594792, 61222165, 649131541, 99417075, 7375617290, 5329034125

Basic calculations (n = 18993891)

Multiplication

n×y

n×2	37987782
n×3	56981673
n×4	75975564
n×5	94969455

Division

n÷y

n÷2	9496945.5
n÷3	6331297
n÷3	4748472.75
n÷5	3798778.2

Exponentiation

n^y

n²	360767895319881
n³	6.8523860800052E+21
n⁴	1.3015347429354E+29
n⁵	2.4721209040027E+36

Nth Root

^y√n

²√n	4358.1981368451
³√n	266.81156309486
⁴√n	66.016650451572
⁵√n	28.557671151233

Divisors of 18993891

1, 21, 79, 107, 1659, 2247, 8453, 11449, 177513, 240429, 904471, 18993891

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	-18993890	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 18993891 can be divided by 12 positive divisors. The sum of these divisors (counting 18993891) is 1, the average is 0.083333333333333.

Base conversion 18993891

Base	System	Value
2	Binary	1001000011101001011100011
3	Ternary	1022201222201110
4	Quaternary	1020131023203
5	Quinary	14330301031
6	Senary	1515034403
8	Octal	110351343
10	Decimal	18993891
12	Duodecimal	643ba03
16	Hexadecimal	121d2e3
20	Vigesimal	5ie4eb
36	Base36	bb3s3

Cryptographic Hash Functions

md5	73417d7ef50ad9a43f3bff519fd57c4d
sha1	d1640d19e0d80bb203426401ee2a0a086e6ec17e
sha256	a19180e0617a9d7cf43b38d5758c7558eee7f0c007d388b57da5f77f2331836a
sha512	f8a9acf940af5d99c2d03233776e9b37ee0f3faa6ae1ff99cb2a2155caa26f2803eb46e67a2977dc7205b31775dbee9b591e7b35838e62a252ba12d49de9b24a
ripemd-160	fcc0db1823fcc3948537cebe916f9f6eef8ee729

18993891 as geometric shapes

Circle

Radius = n

Diameter	37987782
Circumference	119342136.85737
Area	1.133385769588E+15

Sphere

Radius = n

Volume	2.8703207691341E+22
Surface area	4.533543078352E+15
Circumference	119342136.85737

Square

Length = n

Perimeter	75975564
Area	360767895319881
Diagonal	26861418.254436

Cube

Length = n

Surface area	2164607371919286
Volume	6.8523860800052E+21
Space diagonal	32898384.245425

Equilateral Triangle

Length = n

Perimeter	56981673
Area	1.5621708110843E+14
Altitude	16449192.122713

Triangular Pyramid

Length = n

Surface area	1.5621708110843E+14
Volume	8.0756144408E+20
Height	8953806.0848121