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

81231609 (number)

81231609 is an odd 8-digits composite number following 81231608 and preceding 81231610. In scientific notation, it is written as 8.1231609 × 10^7. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 54154404 positive integers (up to 81231609) that are relatively prime to 81231609.

Interesting facts

81231609 has 4 divisors, whose sum is 108308816
The reverse of 81231609 is 90613218
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3

Name

Name	eighty-one million two hundred thirty-one thousand six hundred nine

Notation

Scientific notation	8.1231609 × 10^7
Engineering notation	8.1231609 × 10^6

Prime Factorization of 81231609

Prime Factorization 3 × 27077203

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81231609	Product of the distinct prime numbers

The prime factorization of 81231609 is 3 × 27077203. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 1, 72, 32, 481, 348, 3252, 5206, 36957, 1977, 883080, 478611, 9891507, 1314725, 57950734, 80028288, 509246224, 592584521, 1096524204, 4374696375

Basic calculations (n = 81231609)

Multiplication

n×y

n×2	162463218
n×3	243694827
n×4	324926436
n×5	406158045

Division

n÷y

n÷2	40615804.5
n÷3	27077203
n÷3	20307902.25
n÷5	16246321.8

Exponentiation

n^y

n²	6598574300728881
n³	5.3601280755426E+23
n⁴	4.354118280224E+31
n⁵	3.5369203367891E+39

Nth Root

^y√n

²√n	9012.8579817947
³√n	433.0868712232
⁴√n	94.93607313237
⁵√n	38.189591343191

Divisors of 81231609

1, 3, 27077203, 81231609

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81231608	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81231609 can be divided by 4 positive divisors. The sum of these divisors (counting 81231609) is 1, the average is 0.25.

Base conversion 81231609

Base	System	Value
2	Binary	100110101110111111011111001
3	Ternary	12122211222211010
4	Quaternary	10311313323321
5	Quinary	131243402414
6	Senary	12021024133
8	Octal	465677371
10	Decimal	81231609
12	Duodecimal	23255049
16	Hexadecimal	4d77ef9
20	Vigesimal	157dj09
36	Base36	1cd2pl

Cryptographic Hash Functions

md5	41aece0519c548b148120c82902cc81d
sha1	1636e8b4ef8aef9c9e7510fb379f5ac793377c31
sha256	6fecb8a6f7b59ce91c96ca7784c2bc2d2b7d750a08d3ed3226a368b5b23e7680
sha512	c64257bd3a7a4848e4e52fb7cab1ff6d66c60626c142e112fea0121a8feb19354ba2fb21d1ee869ed69ce4b76dab4789d8b41e4a719694e8d9da81b6c91ca35f
ripemd-160	51074f6e52163863a65814c2139f52366c1a09d1

81231609 as geometric shapes

Circle

Radius = n

Diameter	162463218
Circumference	510393252.14736
Area	2.0730032547336E+16

Sphere

Radius = n

Volume	2.2452451979233E+24
Surface area	8.2920130189345E+16
Circumference	510393252.14736

Square

Length = n

Perimeter	324926436
Area	6598574300728881
Diagonal	114878843.14119

Cube

Length = n

Surface area	39591445804373286
Volume	5.3601280755426E+23
Space diagonal	140697273.96857

Equilateral Triangle

Length = n

Perimeter	243694827
Area	2.8572664865952E+15
Altitude	70348636.984285

Triangular Pyramid

Length = n

Surface area	2.8572664865952E+15
Volume	6.3169715170742E+22
Height	38292947.713729