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

81444637 (number)

81444637 is an odd 8-digits composite number following 81444636 and preceding 81444638. In scientific notation, it is written as 8.1444637 × 10^7. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 75973632 positive integers (up to 81444637) that are relatively prime to 81444637.

Interesting facts

81444637 has 8 divisors, whose sum is 87000696
The reverse of 81444637 is 73644418
Previous prime number is 113

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

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

Notation

Scientific notation	8.1444637 × 10^7
Engineering notation	8.1444637 × 10^6

Prime Factorization of 81444637

Prime Factorization 17 × 113 × 42397

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81444637	Product of the distinct prime numbers

The prime factorization of 81444637 is 17 × 113 × 42397. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 10, 46, 14, 720, 18, 3452, 822, 43202, 5544, 303145, 189923, 3709546, 9012020, 67213571, 51765903, 160499084, 20149812, 29731609, 5367522662

Basic calculations (n = 81444637)

Multiplication

n×y

n×2	162889274
n×3	244333911
n×4	325778548
n×5	407223185

Division

n÷y

n÷2	40722318.5
n÷3	27148212.333333
n÷3	20361159.25
n÷5	16288927.4

Exponentiation

n^y

n²	6633228896061769
n³	5.4024091957766E+23
n⁴	4.3999725587549E+31
n⁵	3.5835416785775E+39

Nth Root

^y√n

²√n	9024.6682487502
³√n	433.46512749912
⁴√n	94.998253924744
⁵√n	38.20960062715

Divisors of 81444637

1, 17, 113, 1921, 42397, 720749, 4790861, 81444637

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	-81444636	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 81444637 can be divided by 8 positive divisors. The sum of these divisors (counting 81444637) is 1, the average is 0.125.

Base conversion 81444637

Base	System	Value
2	Binary	100110110101011111100011101
3	Ternary	12200020211001001
4	Quaternary	10312223330131
5	Quinary	131322212022
6	Senary	12025350301
8	Octal	466537435
10	Decimal	81444637
12	Duodecimal	23338391
16	Hexadecimal	4dabf1d
20	Vigesimal	1590bbh
36	Base36	1chn31

Cryptographic Hash Functions

md5	ed68ae949914718f63b501ed374ba21e
sha1	80b1be61705fe37e6131f3542b6d9891a198241d
sha256	b122b47ea6a45c8d7f50de5b4fdffd70d927116e48ac9e7cb8b843bd0fd71de9
sha512	944f65ee20a07b0088df19d5b0130577d6d3c7125f62300f418dd50e4633fce60a6a77743834c43f6d137ca689c104952d9f6417c013a5db1a553634a4430476
ripemd-160	7f9b8d7a58b493a491511634ff9170d698b79d4b

81444637 as geometric shapes

Circle

Radius = n

Diameter	162889274
Circumference	511731746.54697
Area	2.0838903169447E+16

Sphere

Radius = n

Volume	2.2629558721517E+24
Surface area	8.3355612677789E+16
Circumference	511731746.54697

Square

Length = n

Perimeter	325778548
Area	6633228896061769
Diagonal	115180110.22795

Cube

Length = n

Surface area	39799373376370614
Volume	5.4024091957766E+23
Space diagonal	141066249.288

Equilateral Triangle

Length = n

Perimeter	244333911
Area	2.8722723665532E+15
Altitude	70533124.644002

Triangular Pyramid

Length = n

Surface area	2.8722723665532E+15
Volume	6.3668002951303E+22
Height	38393370.075985