681661640 (number)

681661640 is an even 9-digits composite number following 681661639 and preceding 681661641. In scientific notation, it is written as 6.81661640 × 10^8. The sum of its digits is 38. It has a total of 7 prime factors and 64 positive divisors. There are 247242240 positive integers (up to 681661640) that are relatively prime to 681661640.

Interesting facts

Basic properties

Name

Name six hundred eighty-one million six hundred sixty-one thousand six hundred forty

Notation

Scientific notation 6.81661640 × 10^8
Engineering notation 6.81661640 × 10^6

Prime Factorization of 681661640

Prime Factorization 2 × 2 × 2 × 11 × 5 × 439 × 3529

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 170415410
Product of the distinct prime numbers

The prime factorization of 681661640 is 2 × 2 × 2 × 11 × 5 × 439 × 3529. Since it has a total of 7 prime factors.

Most popular turbo-numbers

10, 6, 36, 70, 594, 779, 806, 2136, 40776, 21267, 749162, 509817, 2964922, 6319733, 283135, 91073110, 658376048, 158818447, 4217953267, 5106043432

Basic calculations (n = 681661640)

Multiplication

n×y
n×2 1363323280
n×3 2044984920
n×4 2726646560
n×5 3408308200

Division

n÷y
n÷2 340830820
n÷3 227220546.66667
n÷3 170415410
n÷5 136332328

Exponentiation

ny
n2 464662591447489600
n3 3.1674266413275E+26
n4 2.159113238907E+35
n5 1.471784671379E+44

Nth Root

y√n
2√n 26108.650673675
3√n 880.08162121716
4√n 161.58171515885
5√n 58.440479551845

Divisors of 681661640

1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 439, 440, 878, 1756, 2195, 3512, 3529, 4390, 4829, 7058, 8780, 9658, 14116, 17560, 17645, 19316, 24145, 28232, 35290, 38632, 38819, 48290, 70580, 77638, 96580, 141160, 155276, 193160, 194095, 310552, 388190, 776380, 1549231, 1552760, 3098462, 6196924, 7746155, 12393848, 15492310, 17041541, 30984620, 34083082, 61969240, 68166164, 85207705, 136332328, 170415410, 340830820, 681661640

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -681661639
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 681661640 can be divided by 64 positive divisors. The sum of these divisors (counting 681661640) is 1, the average is 0.015625.

Base conversion 681661640

Base System Value
2 Binary 101000101000010101010011001000
3 Ternary 1202111122222222102
4 Quaternary 220220111103020
5 Quinary 2344001133030
6 Senary 151350212532
8 Octal 5050252310
10 Decimal 681661640
12 Duodecimal 170354148
16 Hexadecimal 28a154c8
20 Vigesimal ad07e20
36 Base36 b9udhk

Cryptographic Hash Functions

md5 ddb49be1d48f9f715bc1158478d70f7d
sha1 91b747253ad1333465a17bfb08187c42a4d40919
sha256 8b5a52f7a15fc13b9c55c5051731b3539d064e4603fee31264515ba0e0c4fbc7
sha512 686fb136b760ff53af0e00e0efa641bdcd06377a3b76cb56965ae73502a3190e1b5fb533371633caea4d3a5b462a4dbfa7b8ab788f1ed6a98d4468cba5d8274b
ripemd-160 37cd504b0a1899194854a177ba0f44460babe45d

681661640 as geometric shapes

Circle

Radius = n
Diameter 1363323280
Circumference 4283006400.9159
Area 1.4597805836894E+18

Sphere

Radius = n
Volume 1.3267685689572E+27
Surface area 5.8391223347577E+18
Circumference 4283006400.9159

Square

Length = n
Perimeter 2726646560
Area 464662591447489600
Diagonal 964015136.23749

Cube

Length = n
Surface area 2787975548684937600
Volume 3.1674266413275E+26
Space diagonal 1180672594.0507

Equilateral Triangle

Length = n
Perimeter 2044984920
Area 2.0120480419092E+17
Altitude 590336297.02536

Triangular Pyramid

Length = n
Surface area 2.0120480419092E+17
Volume 3.7328480949893E+25
Height 321338378.74583