668749861 (number)

668749861 is an odd 9-digits composite number following 668749860 and preceding 668749862. In scientific notation, it is written as 6.68749861 × 10^8. The sum of its digits is 55. It has a total of 4 prime factors and 16 positive divisors. There are 607181184 positive integers (up to 668749861) that are relatively prime to 668749861.

Interesting facts

Basic properties

Name

Name six hundred sixty-eight million seven hundred forty-nine thousand eight hundred sixty-one

Notation

Scientific notation 6.68749861 × 10^8
Engineering notation 6.68749861 × 10^6

Prime Factorization of 668749861

Prime Factorization 13 × 73 × 487 × 1447

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 668749861
Product of the distinct prime numbers

The prime factorization of 668749861 is 13 × 73 × 487 × 1447. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 668749861)

Multiplication

n×y
n×2 1337499722
n×3 2006249583
n×4 2674999444
n×5 3343749305

Division

n÷y
n÷2 334374930.5
n÷3 222916620.33333
n÷3 167187465.25
n÷5 133749972.2

Exponentiation

ny
n2 447226376587519321
n3 2.9908257717844E+26
n4 2.000114319156E+35
n5 1.3375761729197E+44

Nth Root

y√n
2√n 25860.198394444
3√n 874.48943754614
4√n 160.81106427869
5√n 58.217391298688

Divisors of 668749861

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 -668749860
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 668749861 can be divided by 16 positive divisors. The sum of these divisors (counting 668749861) is 1, the average is 0.0625.

Base conversion 668749861

Base System Value
2 Binary 100111110111000101000000100101
3 Ternary 1201121101000100101
4 Quaternary 213313011000211
5 Quinary 2332144443421
6 Senary 150205344101
8 Octal 4767050045
10 Decimal 668749861
12 Duodecimal 167b68031
16 Hexadecimal 27dc5025
20 Vigesimal a8jded1
36 Base36 b25mp1

Cryptographic Hash Functions

md5 dde375beab6c447ce39f77c452a2ba59
sha1 325853349136d8721bbd12eb8682614734368c6a
sha256 84175069eeb1fa900d95d4dc2b20269890d281f41de413d9fe7f73e1593797aa
sha512 8f716bca6e2fa26de627e6a5505f1d9f0d34034e2caf3be42660c278dd2be830449c816a8ef23c6117a84d1976181a09b4cbed8dfa75666fcbe4c26f4da3718a
ripemd-160 a77d94407a34ec57d4ce3ae0431cc3b85900b4eb

668749861 as geometric shapes

Circle

Radius = n
Diameter 1337499722
Circumference 4201879300.8136
Area 1.4050030991789E+18

Sphere

Radius = n
Volume 1.2527941697073E+27
Surface area 5.6200123967157E+18
Circumference 4201879300.8136

Square

Length = n
Perimeter 2674999444
Area 447226376587519321
Diagonal 945755123.26132

Cube

Length = n
Surface area 2683358259525115926
Volume 2.9908257717844E+26
Space diagonal 1158308736.8066

Equilateral Triangle

Length = n
Perimeter 2006249583
Area 1.9365470168363E+17
Altitude 579154368.40331

Triangular Pyramid

Length = n
Surface area 1.9365470168363E+17
Volume 3.5247219742937E+25
Height 315251707.75377