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

81738761 (number)

81738761 is an odd 8-digits composite number following 81738760 and preceding 81738762. In scientific notation, it is written as 8.1738761 × 10^7. The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors. There are 75451152 positive integers (up to 81738761) that are relatively prime to 81738761.

Interesting facts

81738761 has 4 divisors, whose sum is 88026372
The reverse of 81738761 is 16783718
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5

Name

Name	eighty-one million seven hundred thirty-eight thousand seven hundred sixty-one

Notation

Scientific notation	8.1738761 × 10^7
Engineering notation	8.1738761 × 10^6

Prime Factorization of 81738761

Prime Factorization 13 × 6287597

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81738761	Product of the distinct prime numbers

The prime factorization of 81738761 is 13 × 6287597. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 1, 99, 41, 914, 622, 7301, 2968, 46420, 24907, 178741, 490726, 8228578, 4946187, 52542135, 79613935, 507531373, 462155140, 2299422470, 5956880388

Basic calculations (n = 81738761)

Multiplication

n×y

n×2	163477522
n×3	245216283
n×4	326955044
n×5	408693805

Division

n÷y

n÷2	40869380.5
n÷3	27246253.666667
n÷3	20434690.25
n÷5	16347752.2

Exponentiation

n^y

n²	6681225049815121
n³	5.4611505753405E+23
n⁴	4.4638768166277E+31
n⁵	3.6487176024777E+39

Nth Root

^y√n

²√n	9040.9491205293
³√n	433.98629679174
⁴√n	95.083905686132
⁵√n	38.237158393689

Divisors of 81738761

1, 13, 6287597, 81738761

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	-81738760	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 81738761 can be divided by 4 positive divisors. The sum of these divisors (counting 81738761) is 1, the average is 0.25.

Base conversion 81738761

Base	System	Value
2	Binary	100110111110011110000001001
3	Ternary	12200210202111112
4	Quaternary	10313303300021
5	Quinary	131411120021
6	Senary	12035540105
8	Octal	467636011
10	Decimal	81738761
12	Duodecimal	2345a635
16	Hexadecimal	4df3c09
20	Vigesimal	15ah6i1
36	Base36	1cny15

Cryptographic Hash Functions

md5	a2336352b66cdc54415d2c7b64dd3194
sha1	5cadc7975a2170331cb1aa51d9ac1baf0c50d36b
sha256	aab5580e3467a2744c6cbebfebf25cf52c8f731c31376e2c3cdd2bd9e5f5f8ca
sha512	64c56e6059770d2e63da4f7dedd2701a8d90bd4747ec8725c935bf904a492d8305925db0652c35d2215e3eca197740d3b9a20b3157f42621b3aef03e8dad7d98
ripemd-160	22dce25aad9824e716fb96803a3aa60897770ea3

81738761 as geometric shapes

Circle

Radius = n

Diameter	163477522
Circumference	513579782.14226
Area	2.0989687533479E+16

Sphere

Radius = n

Volume	2.287561403685E+24
Surface area	8.3958750133917E+16
Circumference	513579782.14226

Square

Length = n

Perimeter	326955044
Area	6681225049815121
Diagonal	115596064.37777

Cube

Length = n

Surface area	40087350298890726
Volume	5.4611505753405E+23
Space diagonal	141575686.99973

Equilateral Triangle

Length = n

Perimeter	245216283
Area	2.8930553107704E+15
Altitude	70787843.499865

Triangular Pyramid

Length = n

Surface area	2.8930553107704E+15
Volume	6.4360276748402E+22
Height	38532021.459258