66856987 (number)

66856987 is an odd 8-digits composite number following 66856986 and preceding 66856988. In scientific notation, it is written as 6.6856987 × 10^7. The sum of its digits is 55. It has a total of 3 prime factors and 8 positive divisors. There are 64606080 positive integers (up to 66856987) that are relatively prime to 66856987.

Interesting facts

Basic properties

Name

Name sixty-six million eight hundred fifty-six thousand nine hundred eighty-seven

Notation

Scientific notation 6.6856987 × 10^7
Engineering notation 6.6856987 × 10^6

Prime Factorization of 66856987

Prime Factorization 31 × 2129 × 1013

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 66856987
Product of the distinct prime numbers

The prime factorization of 66856987 is 31 × 2129 × 1013. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 6, 39, 38, 822, 834, 999, 4324, 99594, 68319, 633335, 910386, 8024529, 246798, 33667015, 15275958, 899348981, 265481111, 4915856448, 1974462690

Basic calculations (n = 66856987)

Multiplication

n×y
n×2 133713974
n×3 200570961
n×4 267427948
n×5 334284935

Division

n÷y
n÷2 33428493.5
n÷3 22285662.333333
n÷3 16714246.75
n÷5 13371397.4

Exponentiation

ny
n2 4469856710718169
n3 2.9884115200035E+23
n4 1.9979619014352E+31
n5 1.3357771287075E+39

Nth Root

y√n
2√n 8176.6121957691
3√n 405.86562200907
4√n 90.424621623588
5√n 36.730713115975

Divisors of 66856987

1, 31, 1013, 2129, 31403, 65999, 2156677, 66856987

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -66856986
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 66856987 can be divided by 8 positive divisors. The sum of these divisors (counting 66856987) is 1, the average is 0.125.

Base conversion 66856987

Base System Value
2 Binary 11111111000010100000011011
3 Ternary 11122210200112201
4 Quaternary 3333002200123
5 Quinary 114103410422
6 Senary 10344551031
8 Octal 377024033
10 Decimal 66856987
12 Duodecimal 1a482477
16 Hexadecimal 3fc281b
20 Vigesimal 10hh297
36 Base36 13sz6j

Cryptographic Hash Functions

md5 fc028d3801a5939012077dd18e4aea76
sha1 d6f0f53c0774a624234f8782bea1c364f23c0f1b
sha256 5f840510558d7198681e610c578c6835cf298456dfc15a07ed7de4e2dc6f45f4
sha512 3e82ce0f9c402091c55e264ee99031afa094b78cb1a7e197c9c88aa00885200987ef6f372a9a6931e1a0efa6c498a709429698ad256d4ba03f02216c5733f36f
ripemd-160 6721a93329235fe85f92d97af856cffe1c5b6765

66856987 as geometric shapes

Circle

Radius = n
Diameter 133713974
Circumference 420074838.4007
Area 1.4042469004991E+16

Sphere

Radius = n
Volume 1.2517828902861E+24
Surface area 5.6169876019965E+16
Circumference 420074838.4007

Square

Length = n
Perimeter 267427948
Area 4469856710718169
Diagonal 94550057.754802

Cube

Length = n
Surface area 26819140264309014
Volume 2.9884115200035E+23
Space diagonal 115799698.32497

Equilateral Triangle

Length = n
Perimeter 200570961
Area 1.9355047313791E+15
Altitude 57899849.162486

Triangular Pyramid

Length = n
Surface area 1.9355047313791E+15
Volume 3.5218767512841E+22
Height 31516685.918267