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

81681092 (number)

81681092 is an even 8-digits composite number following 81681091 and preceding 81681093. In scientific notation, it is written as 8.1681092 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors. There are 40777440 positive integers (up to 81681092) that are relatively prime to 81681092.

Interesting facts

81681092 has 12 divisors, whose sum is 143162796
The reverse of 81681092 is 29018618
Previous prime number is 661

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8

Name

Name	eighty-one million six hundred eighty-one thousand ninety-two

Notation

Scientific notation	8.1681092 × 10^7
Engineering notation	8.1681092 × 10^6

Prime Factorization of 81681092

Prime Factorization 2 × 2 × 661 × 30893

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	40840546	Product of the distinct prime numbers

The prime factorization of 81681092 is 2 × 2 × 661 × 30893. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 4, 87, 71, 75, 630, 4673, 965, 73675, 63904, 353226, 182459, 3946124, 8846435, 64789212, 99450931, 417959735, 380419214, 8539542547, 6460191805

Basic calculations (n = 81681092)

Multiplication

n×y

n×2	163362184
n×3	245043276
n×4	326724368
n×5	408405460

Division

n÷y

n÷2	40840546
n÷3	27227030.666667
n÷3	20420273
n÷5	16336218.4

Exponentiation

n^y

n²	6671800790312464
n³	5.4495997415919E+23
n⁴	4.4512925785614E+31
n⁵	3.6358643862839E+39

Nth Root

^y√n

²√n	9037.7592355628
³√n	433.88420959087
⁴√n	95.067130153186
⁵√n	38.231761391758

Divisors of 81681092

1, 2, 4, 661, 1322, 2644, 30893, 61786, 123572, 20420273, 40840546, 81681092

12 divisors

τ	Total Divisors	12	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81681091	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.083333333333333	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	12	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81681092 can be divided by 12 positive divisors. The sum of these divisors (counting 81681092) is 1, the average is 0.083333333333333.

Base conversion 81681092

Base	System	Value
2	Binary	100110111100101101011000100
3	Ternary	12200200211101122
4	Quaternary	10313211223010
5	Quinary	131402243332
6	Senary	12034413112
8	Octal	467455304
10	Decimal	81681092
12	Duodecimal	23431198
16	Hexadecimal	4de5ac4
20	Vigesimal	15aa2ec
36	Base36	1cmpj8

Cryptographic Hash Functions

md5	d7947dc1322ebcf33aca68f74a691d0c
sha1	096196631e5a32228e5776657b5fd8c8c6b4068d
sha256	bc03239a927868fe02887c106478ee8c903b77e640fafc18e67f67bb7c738410
sha512	66fc22bb31f4f3f07709ed456c59878207032e35a4ad4167f20337d3e8c3dc330d5cf651fb1e98d5ba2e342b0dd74f49e261055088a34bd3f450e3263bea12a0
ripemd-160	ed2d48d9a10b32fc03af9621e7e4f4563d411543

81681092 as geometric shapes

Circle

Radius = n

Diameter	163362184
Circumference	513217437.12878
Area	2.096008034906E+16

Sphere

Radius = n

Volume	2.2827230017586E+24
Surface area	8.3840321396241E+16
Circumference	513217437.12878

Square

Length = n

Perimeter	326724368
Area	6671800790312464
Diagonal	115514508.09584

Cube

Length = n

Surface area	40030804741874784
Volume	5.4495997415919E+23
Space diagonal	141475801.36171

Equilateral Triangle

Length = n

Perimeter	245043276
Area	2.8889744866998E+15
Altitude	70737900.680854

Triangular Pyramid

Length = n

Surface area	2.8889744866998E+15
Volume	6.4224148867201E+22
Height	38504836.031948