86787981 (number)

86787981 is an odd 8-digits composite number following 86787980 and preceding 86787982. In scientific notation, it is written as 8.6787981 × 10^7. The sum of its digits is 54. It has a total of 5 prime factors and 32 positive divisors. There are 47101824 positive integers (up to 86787981) that are relatively prime to 86787981.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.6787981 × 10^7
Engineering notation 8.6787981 × 10^6

Prime Factorization of 86787981

Prime Factorization 9 × 7 × 67 × 29 × 709

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 86787981
Product of the distinct prime numbers

The prime factorization of 86787981 is 9 × 7 × 67 × 29 × 709. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 5, 46, 66, 118, 106, 2538, 6141, 37550, 81363, 973933, 549629, 9398383, 5618559, 89797812, 42007072, 488100998, 762112067, 3392533485, 732910945

Basic calculations (n = 86787981)

Multiplication

n×y
n×2 173575962
n×3 260363943
n×4 347151924
n×5 433939905

Division

n÷y
n÷2 43393990.5
n÷3 28929327
n÷3 21696995.25
n÷5 17357596.2

Exponentiation

ny
n2 7532153646056361
n3 6.5370040752302E+23
n4 5.67333385478E+31
n5 4.923771907953E+39

Nth Root

y√n
2√n 9316.0067088855
3√n 442.74452060599
4√n 96.519462850171
5√n 38.69830267165

Divisors of 86787981

1, 7, 9, 29, 63, 67, 203, 261, 469, 603, 709, 1827, 1943, 4221, 4963, 6381, 13601, 17487, 20561, 44667, 47503, 122409, 143927, 185049, 332521, 427527, 1295343, 1377587, 2992689, 9643109, 12398283, 86787981

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 -86787980
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 86787981 can be divided by 32 positive divisors. The sum of these divisors (counting 86787981) is 1, the average is 0.03125.

Base conversion 86787981

Base System Value
2 Binary 101001011000100011110001101
3 Ternary 20001022021201200
4 Quaternary 11023010132031
5 Quinary 134204203411
6 Senary 12340100113
8 Octal 513043615
10 Decimal 86787981
12 Duodecimal 25094639
16 Hexadecimal 52c478d
20 Vigesimal 17289j1
36 Base36 1fo619

Cryptographic Hash Functions

md5 ff0c75459285ad2e25e17bc7c86c24a5
sha1 44316ef611322af71678e0db60aab60f5364cd52
sha256 7fe6f51be29fcdab286c42024baa67a06643af30850a477905e3e0ef49900168
sha512 91273f87beafccae1b9b823b1c16b5cd06de24c16951a2d598843ef349819c7fec7d3ba7092adc7cfdd9f8b7dfa3a45b1fff152195503641f7bfd145a875a0bc
ripemd-160 6a04e171fc724ef3dd74c2426a044cdabfca840a

86787981 as geometric shapes

Circle

Radius = n
Diameter 173575962
Circumference 545304967.05898
Area 2.366295856016E+16

Sphere

Radius = n
Volume 2.7382138638973E+24
Surface area 9.4651834240641E+16
Circumference 545304967.05898

Square

Length = n
Perimeter 347151924
Area 7532153646056361
Diagonal 122736739.78118

Cube

Length = n
Surface area 45192921876338166
Volume 6.5370040752302E+23
Space diagonal 150321192.57832

Equilateral Triangle

Length = n
Perimeter 260363943
Area 3.2615182013462E+15
Altitude 75160596.289161

Triangular Pyramid

Length = n
Surface area 3.2615182013462E+15
Volume 7.7039331837323E+22
Height 40912246.593726