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

18991121 (number)

18991121 is an odd 8-digits prime number following 18991120 and preceding 18991122. In scientific notation, it is written as 1.8991121 × 10^7. The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors. There are 18991120 positive integers (up to 18991121) that are relatively prime to 18991121.

Interesting facts

18991121 has 2 divisors, whose sum is 18991122
The reverse of 18991121 is 12119981
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	eighteen million nine hundred ninety-one thousand one hundred twenty-one

Notation

Scientific notation	1.8991121 × 10^7
Engineering notation	1.8991121 × 10^6

Prime Factorization of 18991121

Prime Factorization 18991121

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	18991121	Product of the distinct prime numbers

The prime factorization of 18991121 is 18991121. Since it has a total of 1 prime factors.

Most popular turbo-numbers

6, 8, 89, 11, 908, 876, 8644, 1384, 46651, 10070, 547239, 764449, 7066395, 5699787, 95868514, 90104466, 312695589, 685697511, 539421408, 8506780464

Basic calculations (n = 18991121)

Multiplication

n×y

n×2	37982242
n×3	56973363
n×4	75964484
n×5	94955605

Division

n÷y

n÷2	9495560.5
n÷3	6330373.6666667
n÷3	4747780.25
n÷5	3798224.2

Exponentiation

n^y

n²	360662676836641
n³	6.8493885359885E+21
n⁴	1.3007756646297E+29
n⁵	2.4703188040838E+36

Nth Root

^y√n

²√n	4357.8803333731
³√n	266.79859218823
⁴√n	66.014243412866
⁵√n	28.556838153254

Divisors of 18991121

1, 18991121

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	18991122	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	9495561	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4357.8804481078	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999998946876	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18991121 can be divided by 2 positive divisors. The sum of these divisors (counting 18991121) is 18991122, the average is 9495561.

Base conversion 18991121

Base	System	Value
2	Binary	1001000011100100000010001
3	Ternary	1022201211220212
4	Quaternary	1020130200101
5	Quinary	14330203441
6	Senary	1515013505
8	Octal	110344021
10	Decimal	18991121
12	Duodecimal	643a295
16	Hexadecimal	121c811
20	Vigesimal	5idhg1
36	Base36	bb1n5

Cryptographic Hash Functions

md5	4efcf2401a2614e1a838649418c31355
sha1	fff11bad32f35a3605658cd2b274d6d9022b2ae9
sha256	dd8b46f84258e24641782eec9468f10c99dbe419a76115d6b95b0c43f2640882
sha512	d19b752019aa90a4710fe44c8d46e7a5a07205758ec8898e3c32b852e29ec11afa1b5b3fbd003cd9612adff97171953ba94929fac9b77d8dbcd9e10cdfefd176
ripemd-160	f3604ac0db8bd1ad722e663818158bf5bdc3c06d

18991121 as geometric shapes

Circle

Radius = n

Diameter	37982242
Circumference	119324732.43407
Area	1.133055215974E+15

Sphere

Radius = n

Volume	2.8690651608325E+22
Surface area	4.5322208638961E+15
Circumference	119324732.43407

Square

Length = n

Perimeter	75964484
Area	360662676836641
Diagonal	26857500.882868

Cube

Length = n

Surface area	2163976061019846
Volume	6.8493885359885E+21
Space diagonal	32893586.464688

Equilateral Triangle

Length = n

Perimeter	56973363
Area	1.5617152016871E+14
Altitude	16446793.232344

Triangular Pyramid

Length = n

Surface area	1.5617152016871E+14
Volume	8.0720818012982E+20
Height	8952500.2942895