81573387 (number)

81573387 is an odd 8-digits composite number following 81573386 and preceding 81573388. In scientific notation, it is written as 8.1573387 × 10^7. The sum of its digits is 42. It has a total of 6 prime factors and 36 positive divisors. There are 44544192 positive integers (up to 81573387) that are relatively prime to 81573387.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred seventy-three thousand three hundred eighty-seven

Notation

Scientific notation 8.1573387 × 10^7
Engineering notation 8.1573387 × 10^6

Prime Factorization of 81573387

Prime Factorization 3 × 7 × 7 × 23 × 23 × 1049

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 506667
Product of the distinct prime numbers

The prime factorization of 81573387 is 3 × 7 × 7 × 23 × 23 × 1049. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81573387)

Multiplication

n×y
n×2 163146774
n×3 244720161
n×4 326293548
n×5 407866935

Division

n÷y
n÷2 40786693.5
n÷3 27191129
n÷3 20393346.75
n÷5 16314677.4

Exponentiation

ny
n2 6654217466651769
n3 5.4280705658934E+23
n4 4.4278610093493E+31
n5 3.6119561969787E+39

Nth Root

y√n
2√n 9031.7986580747
3√n 433.69341858151
4√n 95.03577567461
5√n 38.221673560283

Divisors of 81573387

36 divisors

τ Total Divisors 36
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81573386
Sum of the proper positive divisors of n
A Arithmetic Mean 0.027777777777778
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 36
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81573387 can be divided by 36 positive divisors. The sum of these divisors (counting 81573387) is 1, the average is 0.027777777777778.

Base conversion 81573387

Base System Value
2 Binary 100110111001011011000001011
3 Ternary 12200111100122120
4 Quaternary 10313023120023
5 Quinary 131340322022
6 Senary 12032222323
8 Octal 467133013
10 Decimal 81573387
12 Duodecimal 2339a9a3
16 Hexadecimal 4dcb60b
20 Vigesimal 159gd97
36 Base36 1ckeff

Cryptographic Hash Functions

md5 501403321b0ea716756b1bb884341f62
sha1 ec615b66a4d92ebee6987755622183b3c23379fc
sha256 5d746cfee2076b301c413c2b6a381ee44f05728e77f6edbf65b5b80e7cd9f533
sha512 cefb571ddc09792fc206daf31f72aa826a532e3d7fda5ea675091e34425fef9818b0bdabe70cd9bfd722226de79aedd89c9d7fbfe69d7a4caf1d096fcad69873
ripemd-160 682adbc4de170ce5cd1ce62319a06d81b865922f

81573387 as geometric shapes

Circle

Radius = n
Diameter 163146774
Circumference 512540706.65527
Area 2.0904840708622E+16

Sphere

Radius = n
Volume 2.2737048817304E+24
Surface area 8.3619362834488E+16
Circumference 512540706.65527

Square

Length = n
Perimeter 326293548
Area 6654217466651769
Diagonal 115362190.22411

Cube

Length = n
Surface area 39925304799910614
Volume 5.4280705658934E+23
Space diagonal 141289250.82948

Equilateral Triangle

Length = n
Perimeter 244720161
Area 2.8813606842133E+15
Altitude 70644625.414739

Triangular Pyramid

Length = n
Surface area 2.8813606842133E+15
Volume 6.3970425098373E+22
Height 38454063.408036