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

81409989 (number)

81409989 is an odd 8-digits composite number following 81409988 and preceding 81409990. In scientific notation, it is written as 8.1409989 × 10^7. The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors. There are 52046400 positive integers (up to 81409989) that are relatively prime to 81409989.

Interesting facts

81409989 has 8 divisors, whose sum is 82904448
The reverse of 81409989 is 98990418
Previous prime number is 151

Basic properties

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

Name

Name	eighty-one million four hundred nine thousand nine hundred eighty-nine

Notation

Scientific notation	8.1409989 × 10^7
Engineering notation	8.1409989 × 10^6

Prime Factorization of 81409989

Prime Factorization 87 × 151 × 6197

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81409989	Product of the distinct prime numbers

The prime factorization of 81409989 is 87 × 151 × 6197. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 10, 19, 19, 35, 889, 2070, 8884, 22881, 23105, 394645, 275384, 939642, 4806889, 31338585, 16764936, 265787415, 547357070, 5242423581, 6735154868

Basic calculations (n = 81409989)

Multiplication

n×y

n×2	162819978
n×3	244229967
n×4	325639956
n×5	407049945

Division

n÷y

n÷2	40704994.5
n÷3	27136663
n÷3	20352497.25
n÷5	16281997.8

Exponentiation

n^y

n²	6627586308980121
n³	5.3955172851062E+23
n⁴	4.3924900282981E+31
n⁵	3.5759256488636E+39

Nth Root

^y√n

²√n	9022.7484171953
³√n	433.40365085055
⁴√n	94.988148824973
⁵√n	38.206349064786

Divisors of 81409989

1, 87, 151, 6197, 13137, 539139, 935747, 81409989

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81409988	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81409989 can be divided by 8 positive divisors. The sum of these divisors (counting 81409989) is 1, the average is 0.125.

Base conversion 81409989

Base	System	Value
2	Binary	100110110100011011111000101
3	Ternary	12200012001111210
4	Quaternary	10312203133011
5	Quinary	131320104424
6	Senary	12024522033
8	Octal	466433705
10	Decimal	81409989
12	Duodecimal	23320319
16	Hexadecimal	4da37c5
20	Vigesimal	158g4j9
36	Base36	1cgwcl

Cryptographic Hash Functions

md5	81dc82f19b8c45e5f89ce3cace952921
sha1	4d883007dfb693aabad3eb81ac3e0efb48eedcf6
sha256	f3ec45a3b18e68dcc080ac542e8c7bd292877c1c908eb65af5519e395519fe94
sha512	eda5fe07aeec9ae3e74d5513e56d571dd3183ac148164afaeb4711d8523f2b312a571105dd5720ec0aaebe03a61260c20899336375c0857d74b0ccd13d833997
ripemd-160	7ec078a303e758e44e848e9a6915c7a755cbc59b

81409989 as geometric shapes

Circle

Radius = n

Diameter	162819978
Circumference	511514046.74245
Area	2.0821176459324E+16

Sphere

Radius = n

Volume	2.2600689953609E+24
Surface area	8.3284705837297E+16
Circumference	511514046.74245

Square

Length = n

Perimeter	325639956
Area	6627586308980121
Diagonal	115131110.55644

Cube

Length = n

Surface area	39765517853880726
Volume	5.3955172851062E+23
Space diagonal	141006237.19162

Equilateral Triangle

Length = n

Perimeter	244229967
Area	2.8698290546754E+15
Altitude	70503118.595812

Triangular Pyramid

Length = n

Surface area	2.8698290546754E+15
Volume	6.3586781005131E+22
Height	38377036.852148