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

81639441 (number)

81639441 is an odd 8-digits composite number following 81639440 and preceding 81639442. In scientific notation, it is written as 8.1639441 × 10^7. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 50239440 positive integers (up to 81639441) that are relatively prime to 81639441.

Interesting facts

81639441 has 8 divisors, whose sum is 93036800
The reverse of 81639441 is 14493618
Previous prime number is 9

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9

Name

Name	eighty-one million six hundred thirty-nine thousand four hundred forty-one

Notation

Scientific notation	8.1639441 × 10^7
Engineering notation	8.1639441 × 10^6

Prime Factorization of 81639441

Prime Factorization 39 × 9 × 232591

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81639441	Product of the distinct prime numbers

The prime factorization of 81639441 is 39 × 9 × 232591. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 8, 49, 87, 737, 810, 6880, 7953, 50872, 50704, 946166, 205583, 2426690, 4352899, 82212261, 93336614, 771406904, 358686359, 9420153864, 8676421713

Basic calculations (n = 81639441)

Multiplication

n×y

n×2	163278882
n×3	244918323
n×4	326557764
n×5	408197205

Division

n÷y

n÷2	40819720.5
n÷3	27213147
n÷3	20409860.25
n÷5	16327888.2

Exponentiation

n^y

n²	6664998326792481
n³	5.4412673766527E+23
n⁴	4.4422202696147E+31
n⁵	3.6266037961021E+39

Nth Root

^y√n

²√n	9035.454664819
³√n	433.8104479921
⁴√n	95.055008625632
⁵√n	38.227861551654

Divisors of 81639441

1, 9, 39, 351, 232591, 2093319, 9071049, 81639441

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	-81639440	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 81639441 can be divided by 8 positive divisors. The sum of these divisors (counting 81639441) is 1, the average is 0.125.

Base conversion 81639441

Base	System	Value
2	Binary	100110111011011100000010001
3	Ternary	12200121201021000
4	Quaternary	10313123200101
5	Quinary	131344430231
6	Senary	12033452213
8	Octal	467334021
10	Decimal	81639441
12	Duodecimal	23411069
16	Hexadecimal	4ddb811
20	Vigesimal	15a4ic1
36	Base36	1clte9

Cryptographic Hash Functions

md5	6d8ff3a0751f870bf88dcc661a346c25
sha1	b4112a817b6e25dc6f03ad5326535c1d76493998
sha256	1474308298e66436e775d840cc23ad798cae03c0584feda4cdc02a11478632fb
sha512	a50a2adf4e0275c382f06fc15c8d2b6fa610b8cceeeb50f3758b6ae1c82420fc974b142b6af12df427041b341d3c16d178dfea52e92a1820211e878fdd7c0a07
ripemd-160	5161e730914ffc9029d5293cf323ba2cf6759d90

81639441 as geometric shapes

Circle

Radius = n

Diameter	163278882
Circumference	512955736.17755
Area	2.093870977964E+16

Sphere

Radius = n

Volume	2.2792327488947E+24
Surface area	8.3754839118558E+16
Circumference	512955736.17755

Square

Length = n

Perimeter	326557764
Area	6664998326792481
Diagonal	115455604.68676

Cube

Length = n

Surface area	39989989960754886
Volume	5.4412673766527E+23
Space diagonal	141403659.71352

Equilateral Triangle

Length = n

Perimeter	244918323
Area	2.8860289335915E+15
Altitude	70701829.856761

Triangular Pyramid

Length = n

Surface area	2.8860289335915E+15
Volume	6.4125951004671E+22
Height	38485201.562253