81159664 (number)

81159664 is an even 8-digits composite number following 81159663 and preceding 81159665. In scientific notation, it is written as 8.1159664 × 10^7. The sum of its digits is 40. It has a total of 6 prime factors and 20 positive divisors. There are 39589760 positive integers (up to 81159664) that are relatively prime to 81159664.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred fifty-nine thousand six hundred sixty-four

Notation

Scientific notation 8.1159664 × 10^7
Engineering notation 8.1159664 × 10^6

Prime Factorization of 81159664

Prime Factorization 2 × 2 × 2 × 2 × 41 × 123719

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10144958
Product of the distinct prime numbers

The prime factorization of 81159664 is 2 × 2 × 2 × 2 × 41 × 123719. Since it has a total of 6 prime factors.

Most popular turbo-numbers

6, 2, 91, 61, 776, 634, 1770, 5677, 27460, 79946, 311189, 682545, 1108281, 9927505, 57965678, 4882461, 689040304, 367938393, 3416702677, 1583451827

Basic calculations (n = 81159664)

Multiplication

n×y
n×2 162319328
n×3 243478992
n×4 324638656
n×5 405798320

Division

n÷y
n÷2 40579832
n÷3 27053221.333333
n÷3 20289916
n÷5 16231932.8

Exponentiation

ny
n2 6586891060592896
n3 5.3458986528232E+23
n4 4.3387133844119E+31
n5 3.5212852047117E+39

Nth Root

y√n
2√n 9008.8658553671
3√n 432.95897503994
4√n 94.915045463652
5√n 38.182824213799

Divisors of 81159664

1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 123719, 247438, 494876, 989752, 1979504, 5072479, 10144958, 20289916, 40579832, 81159664

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81159663
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81159664 can be divided by 20 positive divisors. The sum of these divisors (counting 81159664) is 1, the average is 0.05.

Base conversion 81159664

Base System Value
2 Binary 100110101100110010111110000
3 Ternary 12122201100010111
4 Quaternary 10311212113300
5 Quinary 131234102124
6 Senary 12015311104
8 Octal 465462760
10 Decimal 81159664
12 Duodecimal 2321b494
16 Hexadecimal 4d665f0
20 Vigesimal 1574j34
36 Base36 1cbj74

Cryptographic Hash Functions

md5 0463e25262fd05de43b204cf5bd0b06e
sha1 9a2cb9da6d8432afe6eb85396693f21aeacfa548
sha256 0befa890e4ca60f2616f6f3835cb7abc33518ac8a1d4ea918e7423b07c3969aa
sha512 79c3d4c25ddd50287cbb969835f099f6ea02bbf47a11038375bcc324f55f62a256dde73f356a2955572dfeba019143098547d7ee5ba499d5e74f8d5a92f1ce03
ripemd-160 af02023b035b9d252fdc2907498c9419b7f3148d

81159664 as geometric shapes

Circle

Radius = n
Diameter 162319328
Circumference 509941208.38043
Area 2.0693328565955E+16

Sphere

Radius = n
Volume 2.2392847912727E+24
Surface area 8.277331426382E+16
Circumference 509941208.38043

Square

Length = n
Perimeter 324638656
Area 6586891060592896
Diagonal 114777097.54644

Cube

Length = n
Surface area 39521346363557376
Volume 5.3458986528232E+23
Space diagonal 140572661.57322

Equilateral Triangle

Length = n
Perimeter 243478992
Area 2.852207495217E+15
Altitude 70286330.786609

Triangular Pyramid

Length = n
Surface area 2.852207495217E+15
Volume 6.3002019815789E+22
Height 38259032.515481