81707087 (number)

81707087 is an odd 8-digits composite number following 81707086 and preceding 81707088. In scientific notation, it is written as 8.1707087 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors. There are 60315840 positive integers (up to 81707087) that are relatively prime to 81707087.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred seven thousand eighty-seven

Notation

Scientific notation 8.1707087 × 10^7
Engineering notation 8.1707087 × 10^6

Prime Factorization of 81707087

Prime Factorization 7 × 19 × 11 × 55849

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81707087
Product of the distinct prime numbers

The prime factorization of 81707087 is 7 × 19 × 11 × 55849. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 3, 24, 33, 262, 599, 5572, 7888, 99962, 94198, 970498, 328631, 9327762, 2430120, 98552175, 45349170, 740616164, 236479817, 1060489789, 6148876527

Basic calculations (n = 81707087)

Multiplication

n×y
n×2 163414174
n×3 245121261
n×4 326828348
n×5 408535435

Division

n÷y
n÷2 40853543.5
n÷3 27235695.666667
n÷3 20426771.75
n÷5 16341417.4

Exponentiation

ny
n2 6676048066025569
n3 5.4548044014693E+23
n4 4.4569617779884E+31
n5 3.6416536374977E+39

Nth Root

y√n
2√n 9039.1972541814
3√n 433.93023257885
4√n 95.074693027016
5√n 38.234194532946

Divisors of 81707087

1, 7, 11, 19, 77, 133, 209, 1463, 55849, 390943, 614339, 1061131, 4300373, 7427917, 11672441, 81707087

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81707086
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81707087 can be divided by 16 positive divisors. The sum of these divisors (counting 81707087) is 1, the average is 0.0625.

Base conversion 81707087

Base System Value
2 Binary 100110111101100000001001111
3 Ternary 12200202011001102
4 Quaternary 10313230001033
5 Quinary 131404111322
6 Senary 12035133315
8 Octal 467540117
10 Decimal 81707087
12 Duodecimal 2344423b
16 Hexadecimal 4dec04f
20 Vigesimal 15ad7e7
36 Base36 1cn9lb

Cryptographic Hash Functions

md5 880be1bee9296b87359d0243326071cc
sha1 357a4e706f6c252aea1d2a9a1692a428d314b187
sha256 f301a0fe89cf273536cbc3d05c6dfbaeea5bd886237e4ba1b2d42630d6183c4c
sha512 5094be59f55752cb99caf56b69821151139ca9ef2a062d89299ed58ba4671eef786ab7ff51e55f4f5e20ebad302b408a4d193293f9594ab23b088fd0b1e0c900
ripemd-160 3e3d0ddbb8df140ef3cb085981d0b4c743918f2b

81707087 as geometric shapes

Circle

Radius = n
Diameter 163414174
Circumference 513380768.53084
Area 2.0973423559238E+16

Sphere

Radius = n
Volume 2.28490312459E+24
Surface area 8.3893694236953E+16
Circumference 513380768.53084

Square

Length = n
Perimeter 326828348
Area 6676048066025569
Diagonal 115551270.5774

Cube

Length = n
Surface area 40056288396153414
Volume 5.4548044014693E+23
Space diagonal 141520826.02245

Equilateral Triangle

Length = n
Perimeter 245121261
Area 2.8908136110321E+15
Altitude 70760413.011225

Triangular Pyramid

Length = n
Surface area 2.8908136110321E+15
Volume 6.4285486372086E+22
Height 38517090.192466