668889721 (number)

668889721 is an odd 9-digits prime number following 668889720 and preceding 668889722. In scientific notation, it is written as 6.68889721 × 10^8. The sum of its digits is 55. It has a total of 1 prime factors and 2 positive divisors. There are 668889720 positive integers (up to 668889721) that are relatively prime to 668889721.

Interesting facts

Basic properties

Name

Name six hundred sixty-eight million eight hundred eighty-nine thousand seven hundred twenty-one

Notation

Scientific notation 6.68889721 × 10^8
Engineering notation 6.68889721 × 10^6

Prime Factorization of 668889721

Prime Factorization 668889721

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 668889721
Product of the distinct prime numbers

The prime factorization of 668889721 is 668889721. Since it has a total of 1 prime factors.

Most popular turbo-numbers

6, 7, 4, 75, 364, 967, 6594, 2958, 47335, 5660, 471062, 722279, 8130891, 1296366, 65040326, 71924856, 889373823, 403442448, 7558870488, 808522220

Basic calculations (n = 668889721)

Multiplication

n×y
n×2 1337779442
n×3 2006669163
n×4 2675558884
n×5 3344448605

Division

n÷y
n÷2 334444860.5
n÷3 222963240.33333
n÷3 167222430.25
n÷5 133777944.2

Exponentiation

ny
n2 447413458859457841
n3 2.9927026366815E+26
n4 2.0017880316858E+35
n5 1.3389754380155E+44

Nth Root

y√n
2√n 25862.902408662
3√n 874.55039584791
4√n 160.81947148484
5√n 58.219826171207

Divisors of 668889721

1, 668889721

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 668889722
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 334444861
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 25862.902427995
Returns the nth root of the product of n divisors
H Harmonic Mean 1.99999999701
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 668889721 can be divided by 2 positive divisors. The sum of these divisors (counting 668889721) is 668889722, the average is 334444861.

Base conversion 668889721

Base System Value
2 Binary 100111110111100111001001111001
3 Ternary 1201121122010012101
4 Quaternary 213313213021321
5 Quinary 2332213432341
6 Senary 150212343401
8 Octal 4767471171
10 Decimal 668889721
12 Duodecimal 168014b61
16 Hexadecimal 27de7279
20 Vigesimal a90b461
36 Base36 b28mm1

Cryptographic Hash Functions

md5 a9139d29e644cf9bbf111f4773a34290
sha1 0bc907dff9435faea38992644c126d9f941083fb
sha256 a9048ea033ec88c458e8f6a62f98f7e77c290881e01380d6baf86ff92d5b37c0
sha512 feb7e37b3be7a9dab50d22e82572ccf55af9345759c9439d1aa4b859ef27651da9a2b87ac8493ee35e1b29a577da4f4a0eed92a625811f6577a6e6a1f02624d6
ripemd-160 60afa7dea71282367632b5ceba0e17a8581e03a7

668889721 as geometric shapes

Circle

Radius = n
Diameter 1337779442
Circumference 4202758067.1107
Area 1.4055908354701E+18

Sphere

Radius = n
Volume 1.253580349037E+27
Surface area 5.6223633418803E+18
Circumference 4202758067.1107

Square

Length = n
Perimeter 2675558884
Area 447413458859457841
Diagonal 945952915.17016

Cube

Length = n
Surface area 2684480753156747046
Volume 2.9927026366815E+26
Space diagonal 1158550981.4326

Equilateral Triangle

Length = n
Perimeter 2006669163
Area 1.9373571068368E+17
Altitude 579275490.71629

Triangular Pyramid

Length = n
Surface area 1.9373571068368E+17
Volume 3.5269338807872E+25
Height 315317638.39005