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

81268081 (number)

81268081 is an odd 8-digits composite number following 81268080 and preceding 81268082. In scientific notation, it is written as 8.1268081 × 10^7. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 78646500 positive integers (up to 81268081) that are relatively prime to 81268081.

Interesting facts

81268081 has 4 divisors, whose sum is 83889664
The reverse of 81268081 is 18086218
Previous prime number is 31

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7

Name

Name	eighty-one million two hundred sixty-eight thousand eighty-one

Notation

Scientific notation	8.1268081 × 10^7
Engineering notation	8.1268081 × 10^6

Prime Factorization of 81268081

Prime Factorization 31 × 2621551

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81268081	Product of the distinct prime numbers

The prime factorization of 81268081 is 31 × 2621551. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 5, 73, 5, 752, 961, 2959, 286, 22267, 85482, 744539, 372113, 2364377, 5789556, 25994992, 12810576, 9504577, 137641258, 5432943987, 8954084225

Basic calculations (n = 81268081)

Multiplication

n×y

n×2	162536162
n×3	243804243
n×4	325072324
n×5	406340405

Division

n÷y

n÷2	40634040.5
n÷3	27089360.333333
n÷3	20317020.25
n÷5	16253616.2

Exponentiation

n^y

n²	6604500989422561
n³	5.3673512137297E+23
n⁴	4.3619433319284E+31
n⁵	3.5448676401656E+39

Nth Root

^y√n

²√n	9014.8810862928
³√n	433.15167842961
⁴√n	94.946727622877
⁵√n	38.193020059453

Divisors of 81268081

1, 31, 2621551, 81268081

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	-81268080	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 81268081 can be divided by 4 positive divisors. The sum of these divisors (counting 81268081) is 1, the average is 0.25.

Base conversion 81268081

Base	System	Value
2	Binary	100110110000000110101110001
3	Ternary	12122220211211221
4	Quaternary	10312000311301
5	Quinary	131301034311
6	Senary	12021505041
8	Octal	466006561
10	Decimal	81268081
12	Duodecimal	23272181
16	Hexadecimal	4d80d71
20	Vigesimal	157ia41
36	Base36	1cduup

Cryptographic Hash Functions

md5	854d3769595dbc3770afddd8e168e55d
sha1	853896d27c4f4e3c6524e013e63b4b8ad23f7cff
sha256	a0fe5ff00e2ee1d7d94f44df111952c8eb2e777044edd35643af6df4e992d501
sha512	4c9f00d7a4dc7602cc65ba1100c970e3bc8211fb88bd5a03e6f3bcdfeed5c6877e1972f226c34acd5d70892037b0c529f875338fae41eee446f9f1eeaae1f4f6
ripemd-160	933cc66b29ada7251669a78b68da68f45d87059c

81268081 as geometric shapes

Circle

Radius = n

Diameter	162536162
Circumference	510622412.48188
Area	2.0748651788996E+16

Sphere

Radius = n

Volume	2.2482708189719E+24
Surface area	8.2994607155986E+16
Circumference	510622412.48188

Square

Length = n

Perimeter	325072324
Area	6604500989422561
Diagonal	114930422.33824

Cube

Length = n

Surface area	39627005936535366
Volume	5.3673512137297E+23
Space diagonal	140760445.32562

Equilateral Triangle

Length = n

Perimeter	243804243
Area	2.8598328180797E+15
Altitude	70380222.662811

Triangular Pyramid

Length = n

Surface area	2.8598328180797E+15
Volume	6.3254840670636E+22
Height	38310140.779412