646890988 (number)

646890988 is an even 9-digits composite number following 646890987 and preceding 646890989. In scientific notation, it is written as 6.46890988 × 10^8. The sum of its digits is 58. It has a total of 4 prime factors and 12 positive divisors. There are 321118272 positive integers (up to 646890988) that are relatively prime to 646890988.

Interesting facts

Basic properties

Name

Name six hundred forty-six million eight hundred ninety thousand nine hundred eighty-eight

Notation

Scientific notation 6.46890988 × 10^8
Engineering notation 6.46890988 × 10^6

Prime Factorization of 646890988

Prime Factorization 2 × 2 × 139 × 1163473

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 323445494
Product of the distinct prime numbers

The prime factorization of 646890988 is 2 × 2 × 139 × 1163473. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 3, 27, 51, 216, 767, 1600, 1921, 27086, 60594, 159620, 669338, 7335279, 6917968, 67730384, 48051774, 32940967, 244432829, 5519895534, 170964919

Basic calculations (n = 646890988)

Multiplication

n×y
n×2 1293781976
n×3 1940672964
n×4 2587563952
n×5 3234454940

Division

n÷y
n÷2 323445494
n÷3 215630329.33333
n÷3 161722747
n÷5 129378197.6

Exponentiation

ny
n2 418467950355616144
n3 2.7070314585188E+26
n4 1.7511542547483E+35
n5 1.1328059059945E+44

Nth Root

y√n
2√n 25434.05174171
3√n 864.85579606872
4√n 159.48056853959
5√n 57.831734798918

Divisors of 646890988

1, 2, 4, 139, 278, 556, 1163473, 2326946, 4653892, 161722747, 323445494, 646890988

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 -646890987
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 646890988 can be divided by 12 positive divisors. The sum of these divisors (counting 646890988) is 1, the average is 0.083333333333333.

Base conversion 646890988

Base System Value
2 Binary 100110100011101100010111101100
3 Ternary 1200002020110121111
4 Quaternary 212203230113230
5 Quinary 2311101002423
6 Senary 144105041404
8 Octal 4643542754
10 Decimal 646890988
12 Duodecimal 160786264
16 Hexadecimal 268ec5ec
20 Vigesimal a231798
36 Base36 ap54a4

Cryptographic Hash Functions

md5 dc195e812065a3870dba8f9e72a113d5
sha1 83b1967e3ebd47ae84c763157a404438b756f138
sha256 9e220a04bbfafc4f419117c39ad722b79cd0a48d6eba17407e3dcba29a95d2e0
sha512 8ddcf023d72b200e2558bca4a7ebd83bdbf94d12fa8c1d3244c955ae5a09e732b9e91e5159c9b76dd1d4bb61e4af5a066cac7fd13ee8c8667f88c29903c1a36b
ripemd-160 e4ca976ecd9c709783d7c69897c000a1d2f2a825

646890988 as geometric shapes

Circle

Radius = n
Diameter 1293781976
Circumference 4064535951.1485
Area 1.3146558386E+18

Sphere

Radius = n
Volume 1.1339186857492E+27
Surface area 5.2586233543999E+18
Circumference 4064535951.1485

Square

Length = n
Perimeter 2587563952
Area 418467950355616144
Diagonal 914842008.60653

Cube

Length = n
Surface area 2510807702133696864
Volume 2.7070314585188E+26
Space diagonal 1120448058.1744

Equilateral Triangle

Length = n
Perimeter 1940672964
Area 1.8120193783878E+17
Altitude 560224029.08721

Triangular Pyramid

Length = n
Surface area 1.8120193783878E+17
Volume 3.1902671686733E+25
Height 304947336.20218