664721891 (number)

664721891 is an odd 9-digits composite number following 664721890 and preceding 664721892. In scientific notation, it is written as 6.64721891 × 10^8. The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors. There are 657868992 positive integers (up to 664721891) that are relatively prime to 664721891.

Interesting facts

Basic properties

Name

Name six hundred sixty-four million seven hundred twenty-one thousand eight hundred ninety-one

Notation

Scientific notation 6.64721891 × 10^8
Engineering notation 6.64721891 × 10^6

Prime Factorization of 664721891

Prime Factorization 97 × 6852803

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 664721891
Product of the distinct prime numbers

The prime factorization of 664721891 is 97 × 6852803. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 5, 34, 58, 546, 277, 7195, 6378, 52952, 59384, 420424, 880559, 6185907, 4268739, 71864187, 59623572, 205158778, 977018156, 1978978386, 3914775905

Basic calculations (n = 664721891)

Multiplication

n×y
n×2 1329443782
n×3 1994165673
n×4 2658887564
n×5 3323609455

Division

n÷y
n÷2 332360945.5
n÷3 221573963.66667
n÷3 166180472.75
n÷5 132944378.2

Exponentiation

ny
n2 441855192374615881
n3 2.9371081902342E+26
n4 1.9523601102841E+35
n5 1.297776504421E+44

Nth Root

y√n
2√n 25782.201050337
3√n 872.73017837607
4√n 160.56836877274
5√n 58.147091494644

Divisors of 664721891

1, 97, 6852803, 664721891

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -664721890
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 664721891 can be divided by 4 positive divisors. The sum of these divisors (counting 664721891) is 1, the average is 0.25.

Base conversion 664721891

Base System Value
2 Binary 100111100111101101100111100011
3 Ternary 1201022210101000022
4 Quaternary 213213231213203
5 Quinary 2330132100031
6 Senary 145543144055
8 Octal 4747554743
10 Decimal 664721891
12 Duodecimal 16674502b
16 Hexadecimal 279ed9e3
20 Vigesimal a7ea4eb
36 Base36 azraoz

Cryptographic Hash Functions

md5 48f6965a75e07fe10a643a3ca68482d1
sha1 7d1d9bac821966d9d1dcdc9efd3cffd4faf0dca8
sha256 573c07fcce7ec66086a37271be94315603a72840e304f0f4c337058e9f8e4cfd
sha512 39ed6fba0c12d1a60936781feeae339ca3b3cc176da7c7bb36edb2c83ed7900b69cef18299516ce22af7005db5a12d6889144b8d019fd85fb26aec7ef3705765
ripemd-160 2973cb69b7d5b0734f4880bc4a90826643a2a0e1

664721891 as geometric shapes

Circle

Radius = n
Diameter 1329443782
Circumference 4176570818.8918
Area 1.3881290263146E+18

Sphere

Radius = n
Volume 1.2302930017651E+27
Surface area 5.5525161052584E+18
Circumference 4176570818.8918

Square

Length = n
Perimeter 2658887564
Area 441855192374615881
Diagonal 940058713.45849

Cube

Length = n
Surface area 2651131154247695286
Volume 2.9371081902342E+26
Space diagonal 1151332088.1153

Equilateral Triangle

Length = n
Perimeter 1994165673
Area 1.9132891069524E+17
Altitude 575666044.05763

Triangular Pyramid

Length = n
Surface area 1.9132891069524E+17
Volume 3.461415197322E+25
Height 313352904.48616