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

81359905 (number)

81359905 is an odd 8-digits composite number following 81359904 and preceding 81359906. In scientific notation, it is written as 8.1359905 × 10^7. The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors. There are 59170800 positive integers (up to 81359905) that are relatively prime to 81359905.

Interesting facts

81359905 has 8 divisors, whose sum is 106507584
The reverse of 81359905 is 50995318
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4

Name

Name	eighty-one million three hundred fifty-nine thousand nine hundred five

Notation

Scientific notation	8.1359905 × 10^7
Engineering notation	8.1359905 × 10^6

Prime Factorization of 81359905

Prime Factorization 5 × 11 × 1479271

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81359905	Product of the distinct prime numbers

The prime factorization of 81359905 is 5 × 11 × 1479271. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 10, 61, 55, 467, 789, 6606, 6936, 54846, 61186, 770039, 106817, 873055, 338320, 1012575, 41309773, 535841657, 553689318, 7222268562, 2027323726

Basic calculations (n = 81359905)

Multiplication

n×y

n×2	162719810
n×3	244079715
n×4	325439620
n×5	406799525

Division

n÷y

n÷2	40679952.5
n÷3	27119968.333333
n÷3	20339976.25
n÷5	16271981

Exponentiation

n^y

n²	6619434141609025
n³	5.3855653291507E+23
n⁴	4.3816908355099E+31
n⁵	3.5649395011646E+39

Nth Root

^y√n

²√n	9019.9725609339
³√n	433.31475495629
⁴√n	94.973536108402
⁵√n	38.201646944395

Divisors of 81359905

1, 5, 11, 55, 1479271, 7396355, 16271981, 81359905

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	-81359904	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 81359905 can be divided by 8 positive divisors. The sum of these divisors (counting 81359905) is 1, the average is 0.125.

Base conversion 81359905

Base	System	Value
2	Binary	100110110010111010000100001
3	Ternary	12200002111210211
4	Quaternary	10312113100201
5	Quinary	131312004110
6	Senary	12023454121
8	Octal	466272041
10	Decimal	81359905
12	Duodecimal	232b7341
16	Hexadecimal	4d97421
20	Vigesimal	1589jf5
36	Base36	1cftpd

Cryptographic Hash Functions

md5	5a5903c13020dc938e742bda339055a1
sha1	2ff3ea692b027d36451fe546d43555c636a285ee
sha256	beb7b628b54c5c2c5f8ea8c2b3e3a38187c5b8a6d244e275d6bbeb415b7ad1ff
sha512	9b583fa4a6e0436fe47a7c181cc375f3d0d033f783efd755d65491f2850647c399775deb809e1df398db5a15f621f49c206985745f30b4ce5faeb41e90c0a805
ripemd-160	37bddb6e88e66f443b2063eaf4019060730b8116

81359905 as geometric shapes

Circle

Radius = n

Diameter	162719810
Circumference	511199359.68953
Area	2.07955656702E+16

Sphere

Radius = n

Volume	2.2559003297984E+24
Surface area	8.3182262680801E+16
Circumference	511199359.68953

Square

Length = n

Perimeter	325439620
Area	6619434141609025
Diagonal	115060281.08439

Cube

Length = n

Surface area	39716604849654150
Volume	5.3855653291507E+23
Space diagonal	140919489.15898

Equilateral Triangle

Length = n

Perimeter	244079715
Area	2.8662990626557E+15
Altitude	70459744.579489

Triangular Pyramid

Length = n

Surface area	2.8662990626557E+15
Volume	6.3469496079427E+22
Height	38353427.028129