87086781 (number)

87086781 is an odd 8-digits composite number following 87086780 and preceding 87086782. In scientific notation, it is written as 8.7086781 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors. There are 56179440 positive integers (up to 87086781) that are relatively prime to 87086781.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.7086781 × 10^7
Engineering notation 8.7086781 × 10^6

Prime Factorization of 87086781

Prime Factorization 9 × 31 × 31 × 10069

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 2809251
Product of the distinct prime numbers

The prime factorization of 87086781 is 9 × 31 × 31 × 10069. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 5, 85, 52, 777, 439, 2708, 8336, 62249, 29621, 409065, 465952, 3279995, 5396135, 77259986, 65132595, 438317541, 387277670, 8672320831, 9261769533

Basic calculations (n = 87086781)

Multiplication

n×y
n×2 174173562
n×3 261260343
n×4 348347124
n×5 435433905

Division

n÷y
n÷2 43543390.5
n÷3 29028927
n÷3 21771695.25
n÷5 17417356.2

Exponentiation

ny
n2 7584107424941961
n3 6.6047550239639E+23
n4 5.751868543306E+31
n5 5.0091171617168E+39

Nth Root

y√n
2√n 9332.0298435014
3√n 443.25204299703
4√n 96.60243187157
5√n 38.724912719428

Divisors of 87086781

1, 9, 31, 279, 961, 8649, 10069, 90621, 312139, 2809251, 9676309, 87086781

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -87086780
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 87086781 can be divided by 12 positive divisors. The sum of these divisors (counting 87086781) is 1, the average is 0.083333333333333.

Base conversion 87086781

Base System Value
2 Binary 101001100001101011010111101
3 Ternary 20001212110121100
4 Quaternary 11030031122331
5 Quinary 134243234111
6 Senary 12350323313
8 Octal 514153275
10 Decimal 87086781
12 Duodecimal 251b9539
16 Hexadecimal 530d6bd
20 Vigesimal 1745gj1
36 Base36 1fukl9

Cryptographic Hash Functions

md5 ea958b2f78d5fabd7dd00116b60f58f5
sha1 de3c1fa658f6bce49d2919ee28110008e08267e6
sha256 39963f186d087540653acfbafea23661ff0e004309e88ed77e1f33cd20e79e2a
sha512 23f8d5c8f1c1acc1a9f35c7ddf59ba6fd59c76d35b64597b08dadbf17b575cf300b561b5c6296474407fcfdcc4848ed0f82ec13b33d4369890452f5fb4b74d6d
ripemd-160 74508b94aafff5ed46c2a27e7883d670c268fe38

87086781 as geometric shapes

Circle

Radius = n
Diameter 174173562
Circumference 547182382.82877
Area 2.3826176170233E+16

Sphere

Radius = n
Volume 2.7665933149394E+24
Surface area 9.5304704680934E+16
Circumference 547182382.82877

Square

Length = n
Perimeter 348347124
Area 7584107424941961
Diagonal 123159306.79362

Cube

Length = n
Surface area 45504644549651766
Volume 6.6047550239639E+23
Space diagonal 150838729.35962

Equilateral Triangle

Length = n
Perimeter 261260343
Area 3.284014847515E+15
Altitude 75419364.679812

Triangular Pyramid

Length = n
Surface area 3.284014847515E+15
Volume 7.7837784425347E+22
Height 41053102.264539