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

81209085 (number)

81209085 is an odd 8-digits composite number following 81209084 and preceding 81209086. In scientific notation, it is written as 8.1209085 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 40763648 positive integers (up to 81209085) that are relatively prime to 81209085.

Interesting facts

81209085 has 8 divisors, whose sum is 99362016
The reverse of 81209085 is 58090218
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

Name	eighty-one million two hundred nine thousand eighty-five

Notation

Scientific notation	8.1209085 × 10^7
Engineering notation	8.1209085 × 10^6

Prime Factorization of 81209085

Prime Factorization 51 × 5 × 318467

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81209085	Product of the distinct prime numbers

The prime factorization of 81209085 is 51 × 5 × 318467. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 5, 77, 74, 314, 830, 6742, 6735, 44206, 39386, 536809, 948258, 7217287, 7460588, 19652564, 45687173, 174685871, 989013118, 2013206192, 3182008331

Basic calculations (n = 81209085)

Multiplication

n×y

n×2	162418170
n×3	243627255
n×4	324836340
n×5	406045425

Division

n÷y

n÷2	40604542.5
n÷3	27069695
n÷3	20302271.25
n÷5	16241817

Exponentiation

n^y

n²	6594915486537225
n³	5.3556705231402E+23
n⁴	4.3492910274569E+31
n⁵	3.5320194473848E+39

Nth Root

^y√n

²√n	9011.6083470155
³√n	433.04683857023
⁴√n	94.929491450316
⁵√n	38.187473256927

Divisors of 81209085

1, 5, 51, 255, 318467, 1592335, 16241817, 81209085

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	-81209084	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 81209085 can be divided by 8 positive divisors. The sum of these divisors (counting 81209085) is 1, the average is 0.125.

Base conversion 81209085

Base	System	Value
2	Binary	100110101110010011011111101
3	Ternary	12122210211220220
4	Quaternary	10311302123331
5	Quinary	131242142320
6	Senary	12020331553
8	Octal	465623375
10	Decimal	81209085
12	Duodecimal	23243bb9
16	Hexadecimal	4d726fd
20	Vigesimal	157b2e5
36	Base36	1cclbx

Cryptographic Hash Functions

md5	3553e5ef61a8f03f389ce0a10c20f3dc
sha1	7d29e02c1cf24fd7f11b67efeee14ae16b5416bb
sha256	5db2d81344640adba163d8aaa3d63f053adad32e39d5927b39b0bc75a01c6793
sha512	0878fdd1f14d702c3bbbc994686d9bcd5996c72bf47118635d4f1041801b52aab3faabe1c97f40180c97c867c62ebf5513c9ce1ee8fd097e49ce6bcb57450f22
ripemd-160	4c7b7d2391f871f7cb3f163b6f8e0b2be009a037

81209085 as geometric shapes

Circle

Radius = n

Diameter	162418170
Circumference	510251729.6815
Area	2.0718538043551E+16

Sphere

Radius = n

Volume	2.2433780227393E+24
Surface area	8.2874152174204E+16
Circumference	510251729.6815

Square

Length = n

Perimeter	324836340
Area	6594915486537225
Diagonal	114846989.39491

Cube

Length = n

Surface area	39569492919223350
Volume	5.3556705231402E+23
Space diagonal	140658261.25618

Equilateral Triangle

Length = n

Perimeter	243627255
Area	2.8556821735763E+15
Altitude	70329130.62809

Triangular Pyramid

Length = n

Surface area	2.8556821735763E+15
Volume	6.3117182411889E+22
Height	38282329.798303