81288051 (number)

81288051 is an odd 8-digits composite number following 81288050 and preceding 81288052. In scientific notation, it is written as 8.1288051 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors. There are 48090240 positive integers (up to 81288051) that are relatively prime to 81288051.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1288051 × 10^7
Engineering notation 8.1288051 × 10^6

Prime Factorization of 81288051

Prime Factorization 3 × 61 × 13 × 47 × 727

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81288051
Product of the distinct prime numbers

The prime factorization of 81288051 is 3 × 61 × 13 × 47 × 727. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 5, 11, 4, 262, 552, 9185, 8173, 27450, 16168, 287429, 827866, 1825895, 6529277, 35281256, 58613495, 117336152, 297175288, 5772886183, 5369173850

Basic calculations (n = 81288051)

Multiplication

n×y
n×2 162576102
n×3 243864153
n×4 325152204
n×5 406440255

Division

n÷y
n÷2 40644025.5
n÷3 27096017
n÷3 20322012.75
n÷5 16257610.2

Exponentiation

ny
n2 6607747235378601
n3 5.3713089426456E+23
n4 4.3662323526654E+31
n5 3.5492251816131E+39

Nth Root

y√n
2√n 9015.9886313149
3√n 433.18715496802
4√n 94.952559898693
5√n 38.194896908625

Divisors of 81288051

1, 3, 13, 39, 47, 61, 141, 183, 611, 727, 793, 1833, 2181, 2379, 2867, 8601, 9451, 28353, 34169, 37271, 44347, 102507, 111813, 133041, 444197, 576511, 1332591, 1729533, 2084309, 6252927, 27096017, 81288051

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81288050
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81288051 can be divided by 32 positive divisors. The sum of these divisors (counting 81288051) is 1, the average is 0.03125.

Base conversion 81288051

Base System Value
2 Binary 100110110000101101101110011
3 Ternary 12122221212020120
4 Quaternary 10312011231303
5 Quinary 131302204201
6 Senary 12022141323
8 Octal 466055563
10 Decimal 81288051
12 Duodecimal 23281843
16 Hexadecimal 4d85b73
20 Vigesimal 158102b
36 Base36 1cea9f

Cryptographic Hash Functions

md5 fcc1ec57341e461f65c768a5ab7ebdbd
sha1 4373ded4f1a3e46c327c72f1f60b369955b1c5b8
sha256 f05418f7b60ce73a8489f1114fe9632da5d3496acf542909d9ccf4ae99215f19
sha512 272d564152d4d4722cb70fcd7d3451db5612c4812614c4ba25c3cc646e5680245bb64f12a626acaf2b74e47d78a4535e6c73d097a057b22a3968d76103a64775
ripemd-160 b090a4adc0121f2dfcd6082a382ae10decc82478

81288051 as geometric shapes

Circle

Radius = n
Diameter 162576102
Circumference 510747887.69246
Area 2.0758850171444E+16

Sphere

Radius = n
Volume 2.2499286285836E+24
Surface area 8.3035400685775E+16
Circumference 510747887.69246

Square

Length = n
Perimeter 325152204
Area 6607747235378601
Diagonal 114958664.18308

Cube

Length = n
Surface area 39646483412271606
Volume 5.3713089426456E+23
Space diagonal 140795034.38025

Equilateral Triangle

Length = n
Perimeter 243864153
Area 2.8612384838121E+15
Altitude 70397517.190125

Triangular Pyramid

Length = n
Surface area 2.8612384838121E+15
Volume 6.3301482953211E+22
Height 38319554.727692